ADIRS Start Procedure

TASK 34-10-00-860-002-A
ADIRS Start Procedure

ZONE: 210

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	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
822

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 31-60-00-860-001-A	EIS Start Procedure

3. Job Set-up
Subtask 34-10-00-860-061-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (PFDs and NDs only) (Ref. AMM TASK 31-60-00-860-001).

Subtask 34-10-00-010-065-A

B. Get Access
(1) Put the ACCESS PLATFORM 1M(3 FT) in position at the access door 822.
(2) Open the access door 822
(3) On the battery power center 105VU:

loosen the two screws and remove the protective cover

Subtask 34-10-00-865-070-A

C. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	NAV PROBES/ADIRU3/PWR/SWTG	8FP	F09
** ON A/C ALL
49VU	NAV PROBES/ADIRU 1/AND AOA 1/26VAC	5FP1	F07
49VU	NAV PROBES/ADIRU1/115VAC	4FP1	F06
** ON A/C NOT FOR ALL
49VU	NAV PROBES/ADIRU3/PWR/SWTG	8FP	F08
** ON A/C ALL
105VU	ADIRS/ADIRU1/28VDC	6FP1	C02
** ON A/C NOT FOR ALL
121VU	ADIRS/ADIRU/2PWR/SHED	10FP	N10
** ON A/C ALL
121VU	ADIRS/ADIRU/3PWR/SWTG	9FP	N09
121VU	ADIRS/ADIRU/2/26VAC AND AOA	5FP2	N08
121VU	ADIRS/ADIRU/3/26VAC AND AOA	5FP3	N07
121VU	ADIRS/ADIRU/2/115VAC	4FP2	N06
121VU	ADIRS/ADIRU/3/115VAC	4FP3	N05
121VU	ADIRS/ADIRU/2/28VDC	6FP2	N04
121VU	ADIRS/ADIRU/3/28VDC	6FP3	N03
** ON A/C NOT FOR ALL
121VU	ADIRS/2PWR/SHED &/AOA2 MON	10FP	N10

4. Procedure
Subtask 34-10-00-710-065-A ** ON A/C NOT FOR ALL

A. ADIRS Start Procedure.
(1) On the overhead panel, on the ADIRS CDU:
(a) Set the three OFF/NAV/ATT selector switches to NAV.
(b) Make sure that the ON BAT light comes on for five seconds and the ALIGN legend of the IR 1, IR 2 and IR 3 annunciators comes on.
(c) Make sure that the FAULT and OFF legends of the ADR 1, ADR 2 and ADR 3 pushbutton switches are off.
(2) On the CAPT and F/O main instrument panels, on the PFDs:

Make sure that the CAS, ALT and V/S come into view.
Make sure that the attitude data come into view 40 seconds approximately after the three selector switches are at NAV.

(3) On the ADIRS CDU, set the SYS DISPLAY selector switch to 1 and the DATA DISPLAY selector switch to PPOS, and make sure that dashes are shown on the CDU display.

NOTE: It is possible that the position coordinates are shown on the display if the CDU already received them from the GPS.

Subtask 34-10-00-710-065-B ** ON A/C NOT FOR ALL

A. ADIRS Start Procedure.
(1) On ADIRS MSU panel 41VU:
(a) Set the three OFF/NAV/ATT selector switches to NAV.
(b) Make sure that the ON BAT light comes on for five seconds and then goes off.
(c) Make sure that the FAULT and OFF legends of ADR 1, ADR 2 and ADR 3 pushbutton switches are off.
(d) Make sure that the FAULT and OFF legends of IR 1, IR 2 and IR 3 pushbutton switches are off.
(2) On the CAPT and F/O main instrument panels, on the PFDs:

Make sure that the CAS, ALT and V/S come into view.
Make sure that the attitude data come into view 40 seconds approximately after the three selector switches are at NAV.

5. Close-up
Subtask 34-10-00-410-065-A

A. Close Access
(1) Install the protective cover on the battery power center 105VU.
(2) Tighten the two screws.
(3) Close the access door 822.
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 04:14:24 UTC