Removal of the Static Probe

TASK 34-11-16-000-001-A
Removal of the Static Probe

WARNING: MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPENED, SAFETIED AND TAGGED.

WARNING: MAKE SURE THAT:

THE STATIC PROBE IS NOT HOT
THE ELECTRICAL SUPPLY TO THE HEATING ELEMENT OF THE PROBE IS ISOLATED

BEFORE YOU START THE TASK.

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.

ZONE: 120
FIN: 7DA1
FIN: 7DA2
FIN: 7DA3
FIN: 8DA1
FIN: 8DA2
FIN: 8DA3

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	ACCESS PLATFORM 1M(3 FT)
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	PLUG - BLANKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
120	AVIONICS COMPARTMENT
FOR [7DA1] (PROBE-L STATIC, 1)
FOR [7DA2] (PROBE-L STATIC, 2)
FOR [8DA1] (PROBE-R STATIC, 1)
FOR [8DA2] (PROBE-R STATIC, 2)
824
FOR [7DA3] (PROBE-L STATIC, 3)
FOR [8DA3] (PROBE-R STATIC, 3)
811

C. Referenced Information

REFERENCE	DESIGNATION
Static Probe ** ON A/C NOT FOR ALL
Static Probe ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 34-11-16-860-054-A

A. Aircraft Maintenance Configuration
(1) Remove the protective covers from the sensors and the probes (AOA, static, Pitot and TAT).

Subtask 34-11-16-865-061-A

B. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04

Subtask 34-11-16-941-050-A

C. Safety Precautions
(1) In the cockpit, on overhead control and indicating panel 25VU:
(a) Make sure that the PROBE/WINDOW HEAT pushbutton switch is released (the ON legend is off).
(b) Make sure that this(these) circuit breaker(s) is(are) closed:

2KS1
2KS2.

Subtask 34-11-16-865-050-A

D. Open, safety and tag these circuit breakers in this sequence:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14
** ON A/C ALL
FOR FIN: 8DA1 (PROBER STATIC, 1) FOR FIN: 7DA1 (PROBEL STATIC, 1)
122VU	ANTI ICE/PROBES/1/TAT	1DA1	Z12
49VU	ANTI ICE/PROBES/PITOT/1	3DA1	D02
49VU	ANTI ICE/PROBES/AOA/1	4DA1	D04
122VU	ANTI ICE/PROBES/1/STATIC	5DA1	Z13
FOR FIN: 8DA2 (PROBER STATIC, 2) FOR FIN: 7DA2 (PROBEL STATIC, 2)
122VU	ANTI ICE/PROBES/2/TAT	1DA2	Y15
122VU	ANTI ICE/PROBES/2/PITOT	3DA2	Y14
122VU	ANTI ICE/PROBES/2/AOA	4DA2	Y13
122VU	ANTI ICE/PROBES/2/STATIC	5DA2	Y11
FOR FIN: 8DA3 (PROBER STATIC, 3) FOR FIN: 7DA3 (PROBEL STATIC, 3)
122VU	ANTI ICE/PROBES/3/PITOT	3DA3	Z16
122VU	ANTI ICE/PROBES/3/AOA	4DA3	Z15
122VU	ANTI ICE/PROBES/3/STATIC	5DA3	Z14
FOR FIN: 8DA1 (PROBER STATIC, 1) FOR FIN: 7DA1 (PROBEL STATIC, 1)
49VU	ANTI ICE/PROBES/PHC/1	2DA1	D03
FOR FIN: 8DA2 (PROBER STATIC, 2) FOR FIN: 7DA2 (PROBEL STATIC, 2)
122VU	ANTI ICE/PROBES/PHC/2	2DA2	Y12
FOR FIN: 8DA3 (PROBER STATIC, 3) FOR FIN: 7DA3 (PROBEL STATIC, 3)
122VU	ANTI ICE/PROBES/PHC/3	2DA3	Y16

Subtask 34-11-16-010-050-A

E. Get Access
(1) Put the ACCESS PLATFORM 1M(3 FT) in position at the zone 128 for the static probes 7DA1, 8DA1, 7DA2 and 8DA2.
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the zone 120 for static probes 7DA3 and 8DA3.
(3) Open the access door :
(a) FOR [7DA1] (PROBE-L STATIC, 1), [8DA1] (PROBE-R STATIC, 1), [7DA2] (PROBE-L STATIC, 2), [8DA2] (PROBE-R STATIC, 2)
824
(b) FOR [7DA3] (PROBE-L STATIC, 3), [8DA3] (PROBE-R STATIC, 3)
811

4. Procedure
Subtask 34-11-16-020-050-A ** ON A/C NOT FOR ALL

CAUTION: BE VERY CAREFUL WITH THE STATIC PROBES WHEN YOU REMOVE/INSTALL THEM:

DO NOT LET THEM FALL
DO NOT BEND THEM
DO NOT CAUSE THEM SCRATCHES.

STATIC PROBES CONTAIN SENSITIVE ELECTRONIC EQUIPMENT WHICH CAN EASILY BE DAMAGED.

A. Removal of the Static Probe

NOTE: This procedure is the same for the six static probes.

(1) Remove the covers (12).
(2) Remove the two nuts (8), the washers (10) and the bolts (11).
(3) Disconnect the nut (1) and remove the static line (13).
(4) Put a PLUG - BLANKING on the nut (1).
(5) Remove the union (2).
(6) Remove the packing (4) and discard it.
(7) Remove the four nuts (3).
(8) Remove the static probe (5).
(9) Remove the packing (6) and discard it.
(10) Keep the bolts (7).

Subtask 34-11-16-020-050-B ** ON A/C NOT FOR ALL

CAUTION: BE VERY CAREFUL WITH THE STATIC PROBES WHEN YOU REMOVE/INSTALL THEM:

DO NOT LET THEM FALL
DO NOT BEND THEM
DO NOT CAUSE THEM SCRATCHES.

STATIC PROBES CONTAIN SENSITIVE ELECTRONIC EQUIPMENT WHICH CAN EASILY BE DAMAGED.

A. Removal of the Static Probe

NOTE: This procedure is the same for the six static probes.

(1) Remove the covers (12).
(2) Remove the two nuts (8), the washers (10) and the bolts (11).
(3) Disconnect the nut (1) and remove the static line (13).
(4) Put a PLUG - BLANKING on the nut (1).
(5) Remove the union (2).
(6) Remove the packing (4) and discard it.
(7) Remove the four nuts (3).
(8) Remove the bonding strip (15).
(9) Remove the static probe (5).
(10) Remove the packing (6) and discard it.
(11) Keep the bolts (7).

[Rev.10 from 2021] 2026.04.01 04:01:21 UTC