W DOC AIRBUS | AMM A320F

Functional Test of the Altitude and Airspeed Data (A/C with RVSM capability on three ADIRUs)


TASK 34-13-00-720-009-B
Functional Test of the Altitude and Airspeed Data (A/C with RVSM capability on three ADIRUs)


WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
WARNING: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
CAUTION: TO PREVENT DAMAGE TO INSTRUMENTS, OBEY THESE PRECAUTIONS WHEN YOU DO THE TEST:
  • THE PRESSURES SET MUST NOT BE MORE THAN 1050 hPa (31 in Hg) OR LESS THAN 115 hPa (3.39 in Hg)
  • CHANGES IN STATIC AND TOTAL PRESSURES MUST NOT BE MORE THAN 6000 FEET/MINUTE
  • DO NOT SUDDENLY OPEN LINES TO AMBIENT AIR WHILE THE PRESSURE GENERATOR IS CONNECTED.
CAUTION: THE TOTAL PRESSURE IN THE PITOT SYSTEM MUST NEVER BE LESS THAN THE STATIC PRESSURE. THE DIFFERENCE BETWEEN THE PITOT AND THE STATIC PRESSURE CIRCUITS MUST NEVER BE MORE THAN 368 hPa (10.86 in Hg).
ZONE: 120
ZONE: 210
ZONE: 230
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
TAPE - ADHESIVE
No specific
AR
WARNING NOTICE(S)
ALT34100001
1
PITOT AND STATIC TEST SET
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
120
AVIONICS COMPARTMENT
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
230
FWD PASSENGER COMPARTMENT
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 27-50-00-866-009-A
Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01
Retraction of the Flaps/Slats on the Ground
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 34-10-00-860-002-A
ADIRS Start Procedure
TASK 34-10-00-860-005-A
ADIRS Stop Procedure
TASK 34-11-15-200-001-A
Inspection/Check of the Pitot Probe
3. Job Set-up
Subtask 34-13-00-860-092-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
   (2) Do the EIS start procedure (PFD DUs only) (Ref. AMM TASK 31-60-00-860-001).
   (3) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002).
   (4) On the SWITCHING panel 8VU, make sure that the AIR DATA selector switch is at NORM.
   (5) Make sure that the flaps are fully retracted (Ref. AMM TASK 27-50-00-866-009).
   (6) On the FCU, set the CAPT (F/O) Baro-Correction to display STD below the altitude scale on the CAPT (F/O) PFD.
Subtask 34-13-00-860-092-B ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
   (2) Do the EIS start procedure (PFD DUs only) (Ref. AMM TASK 31-60-00-860-001).
   (3) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002).
   (4) On the SWITCHING panel 8VU, make sure that the AIR DATA selector switch is at NORM.
   (5) Make sure that the flaps are fully retracted (Ref. AMM TASK 27-50-00-866-009).
   (6) On the FCU, set the CAPT (F/O) Baro-Correction to display STD below the altitude scale on the CAPT (F/O) PFD.
   (7) On the ENG section of the panel 50VU:
  • Make sure that the ON legend of the ENG/FADEC GND PWR 1 and ENG/FADEC GND PWR 2 pushbutton switches are off.
  • Put a WARNING NOTICE(S) in position to tell persons not to energize the FADEC system.
Subtask 34-13-00-875-054-A ** ON A/C NOT FOR ALL
WARNING: OPEN CIRCUIT BREAKER 7XE. THIS WILL PREVENT A POSSIBLE DEPLOYMENT OF THE RAT IF THE MAIN AC BUSBARS 1XP AND 2XP BECOME ISOLATED.
WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
B. Open, safety and tag these circuit breakers in this sequence:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/PITOT/13DA1D02
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
105VUELEC/CSM/G /EV AUTO/SPLY7XEC01
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/PHC/32DA3Y16
Subtask 34-13-00-875-054-B ** ON A/C NOT FOR ALL
WARNING: OPEN CIRCUIT BREAKER 7XE. THIS WILL PREVENT A POSSIBLE DEPLOYMENT OF THE RAT IF THE MAIN AC BUSBARS 1XP AND 2XP BECOME ISOLATED.
WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
B. Open, safety and tag these circuit breakers in this sequence:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/PITOT/13DA1D02
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
105VUELEC/CSM/G /EV AUTO/SPLY7XEC01
121VUCOM NAV/RAD ALTM/11SA1K11
121VUCOM NAV/RAD ALTM/21SA2K12
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/PHC/32DA3Y16
Subtask 34-13-00-480-052-A ** ON A/C NOT FOR ALL
C. Install the Ground Pressure Generator
   (1) It is necessary to use a ground pressure generator with this minimum data:
  • Altitude between -1000 ft. (-304.79 m) and 50000 ft. (15239.72 m), accuracy +/- 0.1 hPa (0.00145 psi) or the values in ft given below related to the altitude level:
    Sea level: +/- 3 ft. (0.91 m)
    5000 ft. (1523.97 m) : +/- 4 ft. (1.22 m)
    30000 ft. (9143.83 m) : +/- 8 ft. (2.44 m)
    50000 ft. (15239.72 m): +/- 18 ft. (5.49 m)
  • Speed between 0 to 500 kts
  • Mach Nbr: 0 to 1.000
  • Climb Rate: 0 to +/- 6000 ft.min (1828.77 m.min) (accuracy +/- 7%).
   (2) Remove the slip on covers from the static probes and the pitot probes.
   (3)      (a) For the CAPT and the F/O circuits, it is necessary to connect the ground pressure generator to the two static probes (left and right).
For the CAPT circuit (Air Data/Inertial Reference Unit (ADIRU) 1) and the F/O circuit (ADIRU 2), connect the ground pressure generator to the static probes with the ADAPTER STATIC PROBE (4):
  • Left static probe 1 7DA1, zone 127, Station (STA) 8750, for left static-pressure Air Data Module (ADM) (19FP5)
  • Left static probe 2 7DA2, zone 127, STA 8700, for left static-pressure ADM (19FP7)
    and
  • Right static probe 1 8DA1, zone 128, STA 9300, for right static-pressure ADM (19FP4)
  • Right static probe 2 8DA2, zone 128, STA 9350, for right static-pressure ADM (19FP6).
     (b) For the standby circuit (ADIRU 3), connect the ground pressure generator to the static probes with the ADAPTER STATIC PROBE (5):
  • Left static probe 3 7DA3, zone 121, STA 4250, for static pressure ADM (19FP8) or
  • Right static probe 3 8DA3, zone 122, STA 4250, for static pressure ADM (19FP8).
     (c) Connect the ground pressure generator to the pitot probes with the ADAPTER PITOT PROBE (2) or (3) for the Thales probes, or the ADAPTER PITOT PROBE (3) for the Rosemount (Aerospace)/Goodrich probes.
For the CAPT circuit (ADIRU 1):
  • Pitot probe 1 9DA1, zone 125, for left total-pressure ADM (19FP1).
For the F/O circuit (ADIRU 2):
  • Pitot probe 2 9DA2, zone 126, for right total-pressure ADM (19FP2).
For the standby circuit (ADIRU 3):
  • Pitot probe 3 9DA3, zone 125, for the standby total-pressure ADM (19FP3).
   (4) Seal the drain holes of the pitot probes with a piece of plastic and the TAPE - ADHESIVE.
CAUTION: WHEN YOU SEAL THE DRAIN HOLE IN THE PITOT PROBE, DO NOT SEAL THE HOLE DIRECTLY WITH THE COLORED ADHESIVE TAPE. ALWAYS PUT A PIECE OF PLASTIC ON THE HOLE FIRST AND USE THE COLORED ADHESIVE TAPE TO ATTACH THE PLASTIC. IF YOU SEAL THE DRAIN HOLE DIRECTLY WITH THE ADHESIVE TAPE, THERE IS A RISK THAT SOME OF THE ADHESIVE WILL STAY ON THE HOLE AND COLLECT PARTICLES. THIS CAN SUBSEQUENTLY CAUSE BLOCKAGE OF THE HOLE AND THUS INCORRECT OPERATION OF THE PROBE.
     (a) Seal the opposite static probe of the standby ADM with the ADAPTER STATIC PROBE.
   (5) Turn the vane of the three Angle Of Attack (AOA) sensors to the high stop position.
Keep the AOA sensors in position with TAPE - ADHESIVE.
   (6) Start the ground pressure generator.
4. Procedure
Subtask 34-13-00-720-063-C
A. Functional Test of the Altitude and Airspeed Data
ACTION
RESULT
1.On the ground pressure generator:
  • Set a static pressure (Ps) and a total pressure (Pt) as given in the tables as follow.
On the CAPT and F/O PFDs:
  • Compare the altitude and airspeed values for ADIRUs 1 and 2.
  • Record the altitude and airspeed values.
2.On SWITCHING panel 8VU:
On the CAPT and F/O PFDs:
  • Set the AIR DATA selector to the CAPT/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to the applicable Trim) and ADIRU 2.
  • Record the altitude and airspeed values.
  • Set the AIR DATA selector to the F/O/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to the applicable Trim) and ADIRU 1
  • Record the altitude and airspeed values.
3.At the end of the test, on the ground pressure generator:

  • Slowly balance the pressure in the static and total pressure lines.
  • Open the lines to get the atmospheric pressure.
The rate of descent must not be more than 6000 ft.min (1828.77 m.min).
4.Stop the ground pressure generator.

   (1) ADIRUs 1 and 2
------------------------------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch at ! AIR DATA switch !
! ! NORM !at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!---------------------!
! Ps ! Pt ! QC !Hp 1/2! Vc 1/2!Mach 1/2! !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! ! For ADIRU 3 to get !
! ! ! ! ! (hPa)! ! +/-2.5! ! !
! ! ! ! ! (Kts)! ! ! ! !
!-----!-----!-----!-----!------!------!-------!--------! the correct value: !
! 5257! 835 ! 1827!948.1!113.1 !5000 ! 250 !0.413(*)! !
! ! ! ! !259.14!+/-25 ! !+/-0.006! - use the placard !
!-----!-----!-----!-----!------!------!-------!--------! !
!10253! 690 ! 6335!801.8!111.8 !10000 ! 250 !0.452(*)! near the ADIRU3 and !
! ! ! ! !257.7 !+/-30 ! !+/-0.006! !
!-----!-----!-----!-----!------!------!-------!--------! refer to the tables !
!20192!461.9!13009!619.2!157.3 !20000 ! 300 ! 0.651 ! !
! ! ! ! !303.46!+/- 40! !+/-0.006! that follow. !
!-----!-----!-----!-----!------!------!-------!--------! !
!30058!300.1!20576!454.5!154.4 !30000 ! 300 ! 0.791 ! !
! ! ! ! !300.7 !+/- 55! !+/-0.006! (in relation to the !
!-----!-----!-----!-----!------!------!-------!--------! !
!40004!187.5!30620!292.5! 105 !39995 ! 250 ! 0.823 ! applicable Trim) !
! ! ! ! !250.02!+/- 80! !+/-0.006! !
------------------------------------------------------------------------------

   (2) ADIRU 3
     (a) Aircraft with Trim = +250ft
--------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
! ! ! ! ! (Kts)! ! ! !
!-----!-----!-----!-----!------!------!------!---------!
! 5257! 835 ! 1827!948.1!113.1 ! 5305 ! 261 !0.433 (*)!
! ! ! ! !259.14!+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10253! 690 ! 6335!801.8!111.8 ! 10370! 261 !0.475 (*)!
! ! ! ! !257.7 !+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20192!461.9!13009!619.2!157.3 ! 20940! 316 ! 0.697 !
! ! ! ! !303.46!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!30058!300.1!20583!454.5!154.4 ! 31630! 319 ! 0.863 !
! ! ! ! !300.7 !+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!40004!187.5!30618!292.5! 105 ! 41595! 265 ! 0.896 !
! ! ! ! !250.02!+/- 80! !+/-0.006 !
--------------------------------------------------------

     (b) Aircraft with Trim = +150ft
--------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
!-----!-----!-----!-----!------!------!------!---------!
! 5257! 835 ! 1827!948.1!113.1 ! 5305 ! 261 !0.433 (*)!
! ! ! ! !259.14!+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10253! 690 ! 6335!801.8!111.8 ! 10370! 261 !0.475 (*)!
! ! ! ! !257.7 !+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20192!461.9!13009!619.2!157.3 ! 20860! 315 ! 0.694 !
! ! ! ! !303.46!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!30058!300.1!20583!454.5!154.4 ! 31520! 318 ! 0.859 !
! ! ! ! !300.7 !+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!40004!187.5!30618!292.5! 105 ! 41485! 264 ! 0.891 !
! ! ! ! !250.02!+/- 80! !+/-0.006 !
--------------------------------------------------------

     (c) Aircraft with Trim = 0ft
--------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
! ! ! ! ! (Kts)! ! ! !
!-----!-----!-----!-----!------!------!------!---------!
! 5257! 835 ! 1827!948.1!113.1 ! 5305 ! 261 !0.433 (*)!
! ! ! ! !259.14!+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10253! 690 ! 6335!801.8!111.8 !10370 ! 261 !0.475 (*)!
! ! ! ! !257.7 !+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20192!461.9!13009!619.2!157.3 !20790 ! 314 ! 0.690 !
! ! ! ! !303.46!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!30058!300.1!20583!454.5!154.4 !31340 ! 316 ! 0.851 !
! ! ! ! !300.7 !+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!40004!187.5!30618!292.5! 105 !41320 ! 263 ! 0.883 !
! ! ! ! !250.02!+/- 80! !+/-0.006 !
--------------------------------------------------------

     (d) Aircraft with Trim = -150ft
--------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
! ! ! ! ! (Kts)! ! ! !
!-----!-----!-----!-----!------!------!------!---------!
! 5257! 835 ! 1827!948.1!113.1 ! 5305 ! 261 !0.433 (*)!
! ! ! ! !259.14!+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10253! 690 ! 6335!801.8!111.8 ! 10370! 261 !0.475 (*)!
! ! ! ! !257.7 !+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20192!461.9!13009!619.2!157.3 ! 20720! 313 ! 0.686 !
! ! ! ! !303.46!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!30058!300.1!20583!454.5!154.4 ! 31210! 314 ! 0.845 !
! ! ! ! !300.7 !+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!40004!187.5!30618!292.5! 105 ! 41160! 261 ! 0.877 !
! ! ! ! !250.02!+/- 80! !+/-0.006 !
--------------------------------------------------------

     (e) Aircraft with Trim = -250ft
--------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
! ! ! ! ! (Kts)! ! ! !
!-----!-----!-----!-----!------!------!------!---------!
! 5257! 835 ! 1827!948.1!113.1 ! 5305 ! 261 !0.433 (*)!
! ! ! ! !259.14!+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10253! 690 ! 6335!801.8!111.8 ! 10370! 261 !0.475 (*)!
! ! ! ! !257.7 !+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20192!461.9!13009!619.2!157.3 ! 20680! 312 ! 0.685 !
! ! ! ! !303.46!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!30058!300.1!20583!454.5!154.4 ! 31110! 313 ! 0.840 !
! ! ! ! !300.7 !+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!40004!187.5!30618!292.5! 105 ! 41060! 260 ! 0.872 !
! ! ! ! !250.02!+/- 80! !+/-0.006 !
--------------------------------------------------------
(*) These indications are not shown when the Mach value is less than 0.5.

Subtask 34-13-00-720-063-D ** ON A/C NOT FOR ALL
A. Functional Test of the Altitude and Airspeed Data
ACTION
RESULT
1.On the ground pressure generator:
  • Set a static pressure (Ps) and a total pressure (Pt) as given in the tables that follow.
On the CAPT and F/O PFDs:
  • Compare the altitude and airspeed values for ADIRUs 1 and 2.
  • Record the altitude and airspeed values.
2.On SWITCHING panel 8VU:
On the CAPT and F/O PFDs:
  • Set the AIR DATA selector to the CAPT/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to Trim 0) and ADIRU 2.
  • Record the altitude and airspeed values.
  • Set the AIR DATA selector to the F/O/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to Trim 0) and ADIRU 1.
  • Record the altitude and airspeed values.
3.At the end of the test, on the ground pressure generator:

  • Slowly balance the pressure in the static and total pressure lines.
  • Open the lines to get the atmospheric pressure.
The rate of descent must not be more than 6000 ft.min (1828.77 m.min).
4.Stop the ground pressure generator.

   (1) ADIRUs 1 and 2
------------------------------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch at ! AIR DATA switch !
! ! NORM ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!---------------------!
! Ps ! Pt ! QC !Hp 1/2! Vc 1/2!Mach 1/2! !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! ! !
! ! ! ! !(hPa) ! !+/- 2.5! ! !
! ! ! ! ! ! ! ! ! !
!-----!-----!-----!-----!------!------!-------!--------! !
! 5308!833.4! 1828!948.1!114.7 ! 5000 ! 250 !0.413(*)! !
! ! ! ! !260.90!+/-25 ! !+/-0.006! For ADIRU 3 to get !
!-----!-----!-----!-----!------!------!-------!--------! !
!10345!687.6! 6335!801.8!114.2 !10000 ! 250 !0.452(*)! the correct values !
! ! ! ! !260.35!+/-30 ! !+/-0.006! !
!-----!-----!-----!-----!------!------!-------!--------! refer to the table !
!20498! 456 !13009!619.2!163.2 !20000 ! 300 ! 0.651 ! !
! ! ! ! !308.82!+/- 40! !+/-0.006! that follows. !
!-----!-----!-----!-----!------!------!-------!--------! !
!30515!293.9!20579!454.4!160.5 !30000 ! 300 ! 0.790 ! (in relation to the !
! ! ! ! !306.38!+/- 55! !+/-0.006! !
!-----!-----!-----!-----!------!------!-------!--------! Trim 0ft) !
!40489!183.2!30618!292.5!109.3 !40000 ! 250 ! 0.823 ! !
! ! ! ! !254.91!+/- 80! !+/-0.006! !
------------------------------------------------------------------------------

   (2) ADIRU 3
     (a) Aircraft with Trim = 0ft
--------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
! ! ! ! ! (Kts)! ! ! !
!-----!-----!-----!-----!------!------!------!---------!
! 5308!833.4! 1828!948.1!114.7 ! 5406 ! 265 !0.439 (*)!
! ! ! ! !260.9 !+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10345!687.6! 6335!801.8!114.2 ! 10483! 265 !0.482 (*)!
! ! ! ! !260.35!+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20498! 456 !13009!619.2!163.2 ! 21135! 319 ! 0.706 !
! ! ! ! !308.82!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!30515!293.9!20579!454.4!160.5 ! 31845! 322 ! 0.873 !
! ! ! ! !306.38!+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!40489!183.2!30618!292.5!109.3 ! 41761! 267 ! 0.903 !
! ! ! ! !254.91!+/- 80! !+/-0.006 !
--------------------------------------------------------

Subtask 34-13-00-720-063-E ** ON A/C NOT FOR ALL
A. Functional Test of the Altitude and Airspeed Data
ACTION
RESULT
1.On the ground pressure generator:
  • Set a static pressure (Ps) and a total pressure (Pt) as given in the tables that follow.
On the CAPT and F/O PFDs:
  • Compare the altitude and airspeed values for ADIRUs 1 and 2.
  • Record the altitude and airspeed values.
2.On SWITCHING panel 8VU:
On the CAPT and F/O PFDs:
  • Set the AIR DATA selector to the CAPT/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to Trim 0) and ADIRU 2.
  • Record the altitude and airspeed values.
  • Set the AIR DATA selector to the F/O/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to Trim 0) and ADIRU 1.
  • Record the altitude and airspeed values.
3.At the end of the test, on the ground pressure generator:

  • Slowly balance the pressure in the static and total pressure lines.
  • Open the lines to get the atmospheric pressure.
The rate of descent must not be more than 6000 ft.min (1828.77 m.min).
4.Stop the ground pressure generator.

   (1) ADIRUs 1 and 2
------------------------------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch at ! AIR DATA switch !
! ! NORM ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!---------------------!
! Ps ! Pt ! QC !Hp 1/2! Vc 1/2!Mach 1/2! !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) ! (Kts) ! ! !
! ! ! ! ! (hPa)! !+/- 2.5! ! !
! ! ! ! ! (Kts)! ! ! ! !
!-----!-----!-----!-----!------!------!-------!--------! !
! 5392!830.8! 1828!948.1!117.3 ! 5000 ! 250 !0.412(*)! !
! ! ! ! !263.73!+/-25 ! !+/-0.006! For ADIRU 3 to get !
!-----!-----!-----!-----!------!------!-------!--------! !
!10450!684.7! 6335!801.8!117.1 !10000 ! 250 !0.452(*)! the correct values: !
! ! ! ! !263.51!+/-30 ! !+/-0.006! !
!-----!-----!-----!-----!------!------!-------!--------! refer to the table !
!20822!449.8!13009!619.2!169.4 !20000 ! 300 ! 0.651 ! !
! ! ! ! !314.32!+/- 40! !+/-0.006! that follows. !
!-----!-----!-----!-----!------!------!-------!--------! !
!31067!286,6!20579!454.4!167.8 !30000 ! 300 ! 0.790 ! (in relation to the !
! ! ! ! !312.91!+/- 55! !+/-0.006! !
!-----!-----!-----!-----!------!------!-------!--------! Trim 0ft) !
!41086! 178 !30618!292.5!114.5 !40000 ! 250 ! 0.823 ! !
! ! ! ! !260.68!+/- 80! !+/-0.006! !
------------------------------------------------------------------------------

   (2) ADIRU 3
     (a) Aircraft with Trim = 0ft
--------------------------------------------------------
! Pressure ! CAPT PFD and F/O PFD !
! generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
! ! ! ! ! (Kts)! ! ! !
!-----!-----!-----!-----!------!------!------!---------!
! 5392!830.8! 1828!948.1!117.3 ! 5445 ! 265 !0.442 (*)!
! ! ! ! !263.73!+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10450!684.7! 6335!801.8!117.1 ! 10565! 266 !0.487 (*)!
! ! ! ! !263.51!+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20822!449.8!13009!619.2!169.4 ! 21535! 326 ! 0.725 !
! ! ! ! !314.32!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!31067!286.6!20579!454.4!167.8 ! 32455! 328 ! 0.899 !
! ! ! ! !312.91!+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!41086! 178 !30618!292.5!114.5 ! 42430! 272 ! 0.932 !
! ! ! ! !260.68!+/- 80! !+/-0.006 !
--------------------------------------------------------

Subtask 34-13-00-720-063-F ** ON A/C NOT FOR ALL
A. Functional Test of the Altitude and Airspeed Data
ACTION
RESULT
1.On the ground pressure generator:
  • Set a static pressure (Ps) and a total pressure (Pt) as given in the tables that follow.
On the CAPT and F/O PFDs:
  • Compare the altitude and airspeed values for ADIRUs 1 and 2.
  • Record the altitude and airspeed values.
2.On SWITCHING panel 8VU:
On the CAPT and F/O PFDs:
  • Set the AIR DATA selector to the CAPT/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to Trim 0 ft) and ADIRU 2.
  • Record the altitude and airspeed values.
  • Set the AIR DATA selector to the F/O/3 position.
  • Compare the altitude and airspeed values for ADIRU 3 (in relation to Trim 0 ft) and ADIRU 1.
  • Record the altitude and airspeed values.
3.At the end of the test, on the ground pressure generator:

  • Slowly balance the pressure in the static and total pressure lines.
  • Open the lines to get the atmospheric pressure.
The rate of descent must not be more than 6000 ft.min (1828.77 m.min).
4.Stop the ground pressure generator.

   (1) ADIRUs 1 and 2
------------------------------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch at ! AIR DATA switch !
! ! NORM !at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!---------------------!
! Ps ! Pt ! QC !Hp 1/2! Vc 1/2!Mach 1/2! !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! ! !
! ! ! ! ! (hPa)! !+/- 2.5! ! !
! ! ! ! ! (Kts)! ! ! ! !
!-----!-----!-----!-----!------!------!-------!--------! !
! 5257! 835 ! 1827!948.1!113.1 !5000 ! 250 !0.413(*)! !
! ! ! ! !259.14!+/-25 ! !+/-0.006! For ADIRU 3 to get !
!-----!-----!-----!-----!------!------!-------!--------! !
!10253! 690 ! 6335!801.8!111.8 !10000 ! 250 !0.452(*)! the correct values: !
! ! ! ! !257.7 !+/-30 ! !+/-0.006! !
!-----!-----!-----!-----!------!------!-------!--------! refer to the table !
!20192!461.9!13009!619.2!157.3 !20000 ! 300 ! 0.651 ! !
! ! ! ! !303.46!+/- 40! !+/-0.006! that follows. !
!-----!-----!-----!-----!------!------!-------!--------! !
!30058!300.1!20576!454.5!154.4 !30000 ! 300 ! 0.791 ! (in relation to the !
! ! ! ! !300.7 !+/- 55! !+/-0.006! !
!-----!-----!-----!-----!------!------!-------!--------! Trim 0ft) !
!40004!187.5!30620!292.5! 105 !39995 ! 250 ! 0.823 ! !
! ! ! ! !250.02!+/- 80! !+/-0.006! !
------------------------------------------------------------------------------

   (2) ADIRU 3
     (a) Aircraft with Trim = 0ft
--------------------------------------------------------
! ! CAPT PFD and F/O PFD !
! Pressure generator ! AIR DATA switch !
! ! at CAPT/3 or F/O/3 !
!------------------------------!-----------------------!
! Ps ! Pt ! QC ! Hp 3 ! Vc 3 ! Mach 3 !
! (ft)!(hPa)! (ft)!(hPa)!Pt-Ps ! (ft) !(Kts) ! !
! ! ! ! ! (hPa)! !+/-2.5! !
! ! ! ! ! (Kts)! ! ! !
!-----!-----!-----!-----!------!------!------!---------!
! 5257! 835 ! 1827!948.1!113.1 ! 5305 ! 261 !0.433 (*)!
! ! ! ! !259.14!+/- 25! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!10253! 690 ! 6335!801.8!111.8 !10370 ! 261 !0.475 (*)!
! ! ! ! !257.7 !+/- 30! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!20192!461.9!13009!619.2!157.3 !20790 ! 314 ! 0.690 !
! ! ! ! !303.46!+/- 40! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!30058!300.1!20583!454.5!154.4 !31340 ! 316 ! 0.851 !
! ! ! ! !300.7 !+/- 55! !+/-0.006 !
!-----!-----!-----!-----!------!------!------!---------!
!40004!187.5!30618!292.5! 105 !41320 ! 263 ! 0.883 !
! ! ! ! !250.02!+/- 80! !+/-0.006 !
--------------------------------------------------------

Subtask 34-13-00-720-063-T ** ON A/C NOT FOR ALL
A. Functional Test of the Altitude and Airspeed Data
ACTION
RESULT
1.On the ground pressure generator:
  • Set a static pressure (Ps) and a total pressure (Pt) as given in the table that follow.
On the CAPT and F/O PFDs:
  • Compare the altitude and airspeed values for ADIRUs 1 and 2.
  • Record the altitude and airspeed values.
2.On SWITCHING panel 8VU:
On the CAPT and F/O PFDs:
  • Set the AIR DATA selector to the CAPT/3 position.
  • Compare the altitude and airspeed values for ADIRUs 3 and 2.
  • Record the altitude and airspeed values.
  • Set the AIR DATA selector to the F/O/3 position.
  • Compare the altitude and airspeed values for ADIRUs 1 and 3.
  • Record the altitude and airspeed values.
3.At the end of the test, on the ground pressure generator:

  • Slowly balance the pressure in the static and total pressure lines.
  • Open the lines to get the atmospheric pressure.
The rate of descent must not be more than 6000 ft.min (1828.77 m.min).
4.Stop the ground pressure generator.

-------------------------------------------------------------------------------
Pressure ! CAPT PFD and F/O PFD
generator ! AIR DATA switch at ! AIR DATA switch
! NORM ! at CAPT/3 or F/O/3
------------------------------!-----------------------!-----------------------
Ps ! Pt ! QC !Hp 1/2!Vc 1/2 !Mach 1/2! Hp 3 ! Vc 3 ! Mach 3
(ft)!(hpa)! (ft)!(hpa)!Pt-Ps ! (ft) ! (Kts) ! ! (ft) !(Kts) !
! ! ! ! (hpa)! !+/- 2.5! ! !+/-2.5!
! ! ! ! (Kts)! ! ! ! ! !
-----!-----!-----!-----!------!------!-------!--------!------!------!---------
5385! 831 ! 1839!947.7!116.7 ! 5000 ! 250 !0.412(*)! 5429 !264.5 !0.440 (*)
! ! ! !263.08!+/- 25! !+/-0.006!+/- 25! !+/-0.006
-----!-----!-----!-----!------!------!-------!--------!------!------!----------
10440! 685 ! 6332!801.9!116.9 !10000 ! 250 !0.452(*)! 10548! 266 ! 0.486 (*)
! ! ! !263.30!+/-30 ! !+/-0.006!+/- 30! !+/-0.006
-----!-----!-----!-----!------!------!-------!--------!------!------!----------
20797!450.3!13022!618.9!168.6 !20000 ! 300 ! 0.651 ! 21516! 325 ! 0.723
! ! ! !313.62!+/- 40! !+/-0.006!+/- 40! !+/-0.006
-----!-----!-----!-----!------!------!-------!--------!------!------!----------
31041!286.9!20592!454.2!167.3 !30000 ! 300 ! 0.790 ! 32493! 328 ! 0.901
! ! ! !312.47!+/- 55! !+/-0.006!+/- 55! !+/-0.006
-----!-----!-----!-----!------!------!-------!--------!------!------!----------
41051!178.3!30650!292.1!113.8 !40000 ! 250 ! 0.821 ! 42488! 273 ! 0.934
! ! ! !259.91!+/- 80! !+/-0.006!+/- 80! !+/-0.006
-------------------------------------------------------------------------------
(*) These indications are not shown when the Mach value is less than 0.5.

Subtask 34-13-00-720-063-U ** ON A/C NOT FOR ALL
A. Functional Test of the Altitude and Airspeed Data
ACTION
RESULT
1.On the ground pressure generator:
  • Set a static pressure (Ps) and a total pressure (Pt) as given in the table that follow.
On the CAPT and F/O PFDs:
  • Compare the altitude and airspeed values for ADIRUs 1 and 2.
  • Record the altitude and airspeed values.
2.On SWITCHING panel 8VU:
On the CAPT and F/O PFDs:
  • Set the AIR DATA selector to the CAPT/3 position.
  • Compare the altitude and airspeed values for ADIRUs 3 and 2.
  • Record the altitude and airspeed values.
  • Set the AIR DATA selector to the F/O/3 position.
  • Compare the altitude and airspeed values for ADIRUs 1 and 3.
  • Record the altitude and airspeed values.
3.At the end of the test, on the ground pressure generator:

  • Slowly balance the pressure in the static and total pressure lines.
  • Open the lines to get the atmospheric pressure.
The rate of descent must not be more than 6000 ft.min (1828.77 m.min).
4.Stop the ground pressure generator.

---------------------------------------------------------------------------------
Pressure ! CAPT PFD and F/O PFD
generator ! AIR DATA switch at ! AIR DATA switch
! NORM ! at CAPT/3 or F/O/3
-------------------------------!-----------------------!-----------------------
Ps ! Pt ! QC !Hp 1/2!Vc 1/2 !Mach 1/2! Hp 3 ! Vc 3 ! Mach 3
(ft)!(hpa) ! (ft)!(hpa)!Pt-Ps ! (ft) ! (Kts) !+/- ! (ft) !(Kts) !+/-0.006
! ! ! ! (hpa)! !+/- 2.5!0.006 ! !+/-2.5!
! ! ! ! (Kts)! ! ! ! ! !
-----!------!-----!-----!------!------!-------!--------!------!------!---------
5410!830.15! 1829!948.1!117.95! 5000 ! 250 !0.413(*)! 5415 ! 265 !0.440 (*)
! ! ! !264.4 !+/- 25! ! !+/- 25! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
10440! 685 ! 6335!801.8!116.8 !10000 ! 250 !0.452(*)! 10505! 265 ! 0.483 (*)
! ! ! !263.2 !+/-30 ! ! !+/- 30! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
20530!455.4 !13010!619.2!163.8 !20000 ! 300 ! 0.651 ! 21210! 320 ! 0.710
! ! ! !309.3 !+/- 40! ! !+/- 40! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
30510!293.95!20579!454.4!160.45!30000 ! 300 ! 0.790 ! 32240! 326 ! 0.890
! ! ! !306.3 !+/- 55! ! !+/- 55! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
40490!183.2 !30618!292.5!109.3 !40000 ! 250 ! 0.823 ! 42585! 274 ! 0.940
! ! ! !254.9 !+/- 80! ! !+/- 80! !
--------------------------------------------------------------------------------
(*) These indications are not shown when the Mach value is less than 0.5.

Subtask 34-13-00-720-063-X ** ON A/C NOT FOR ALL
A. Functional Test of the Altitude and Airspeed Data
ACTION
RESULT
1.On the ground pressure generator:
  • Set a static pressure (Ps) and a total pressure (Pt) as given in the table that follow.
On the CAPT and F/O PFDs:
  • Compare the altitude and airspeed values for ADIRUs 1 and 2.
  • Record the altitude and airspeed values.
2.On SWITCHING panel 8VU:
On the CAPT and F/O PFDs:
  • Set the AIR DATA selector to the CAPT/3 position.
  • Compare the altitude and airspeed values for ADIRUs 3 and 2.
  • Record the altitude and airspeed values.
  • Set the AIR DATA selector to the F/O/3 position.
  • Compare the altitude and airspeed values for ADIRUs 1 and 3.
  • Record the altitude and airspeed values.
3.At the end of the test, on the ground pressure generator:

  • Slowly balance the pressure in the static and total pressure lines.
  • Open the lines to get the atmospheric pressure.
The rate of descent must not be more than 6000 ft.min (1828.77 m.min).
4.Stop the ground pressure generator.

--------------------------------------------------------------------------------
Pressure ! CAPT PFD and F/O PFD
generator ! AIR DATA switch at ! AIR DATA switch
! NORM ! at CAPT/3 or F/O/3
-------------------------------!-----------------------!-----------------------
Ps ! Pt ! QC !Hp 1/2!Vc 1/2 !Mach 1/2! Hp 3 ! Vc 3 ! Mach 3
(ft)!(hpa) ! (ft)!(hpa)!Pt-Ps ! (ft) ! (Kts) !+/- ! (ft) !(Kts) !+/-0.006
! ! ! ! (hpa)! !+/- 2.5!0.006 ! !+/-2.5!
! ! ! ! (Kts)! ! ! ! ! !
-----!------!-----!-----!------!------!-------!--------!------!------!---------
5385!830.95! 1829!948.1!117.15! 5000 ! 250 !0.413(*)! 5430 ! 265 !0.441 (*)
! ! ! !263.6 !+/- 25! ! !+/- 25! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
10440! 685 ! 6335!801.8!116.8 !10000 ! 250 !0.452(*)! 10550! 267 ! 0.487 (*)
! ! ! !263.2 !+/-30 ! ! !+/- 30! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
20795!450.3 !13010!619.2!168.9 !20000 ! 300 ! 0.652 ! 21520! 326 ! 0.725
! ! ! !313.9 !+/- 40! ! !+/- 40! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
31045!286.85!20579!454.4!167.55!30000 ! 300 ! 0.791 ! 32500! 329 ! 0.903
! ! ! !312.7 !+/- 55! ! !+/- 55! !
-----!------!-----!-----!------!------!-------!--------!------!------!----------
41050!178.3 !30618!292.5!114.2 !40000 ! 250 ! 0.824 ! 42490! 273 ! 0.936
! ! ! !260.4 !+/- 80! ! !+/- 80! !
--------------------------------------------------------------------------------
(*) These indications are not shown when the Mach value is less than 0.5.

5. Close-up
Subtask 34-13-00-080-052-A ** ON A/C NOT FOR ALL
A. Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Make sure that there is no remaining piece of plastic and/or adhesive tape on the pitot probes and AOA sensors. Make sure the pitot drain holes are operational and that the AOA sensors move freely.
Subtask 34-13-00-875-055-A ** ON A/C NOT FOR ALL
WARNING: CLOSE THE PHC CIRCUIT BREAKERS 2DA1(2,3) BEFORE YOU CLOSE THE PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE, THE PROBES WILL BECOME TOO HOT. THIS CAN CAUSE INJURY TO MAINTENANCE PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
B. Remove the safety clips and tags and close these circuit breakers in this sequence:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/PHC/32DA3Y16
49VUANTI ICE/PROBES/PITOT/13DA1D02
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
105VUELEC/CSM/G /EV AUTO/SPLY7XEC01
Subtask 34-13-00-875-055-B ** ON A/C NOT FOR ALL
WARNING: CLOSE THE PHC CIRCUIT BREAKERS 2DA1(2,3) BEFORE YOU CLOSE THE PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE, THE PROBES WILL BECOME TOO HOT. THIS CAN CAUSE INJURY TO MAINTENANCE PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
B. Remove the safety clips and tags and close these circuit breakers in this sequence:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/PHC/32DA3Y16
49VUANTI ICE/PROBES/PITOT/13DA1D02
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
105VUELEC/CSM/G /EV AUTO/SPLY7XEC01
121VUCOM NAV/RAD ALTM/11SA1K11
121VUCOM NAV/RAD ALTM/21SA2K12
Subtask 34-13-00-860-093-A ** ON A/C NOT FOR ALL
C. Put the aircraft back to its initial configuration.
   (1) Do a reset of each ELAC:
  • On panel 49VU, open then close the ELAC1 circuit breaker
  • On panel 121VU, open then close the ELAC2 circuit breaker.
   (2) Make sure that the drain holes on the pitot probes are not blocked by unwanted materials (Ref. AMM TASK 34-11-15-200-001).
   (3) Install the slip on covers on the static probes and on the pitot probes.
   (4) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
   (5) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.02 06:23:09 UTC