Adjustment of the Cockpit Door - Clearance A between the Cockpit Door and Wall Panel (Pelmet)

TASK 52-51-00-820-810-A
Adjustment of the Cockpit Door - Clearance A between the Cockpit Door and Wall Panel (Pelmet)

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 220

1. Reason for the Job

NOTE: Two persons are necessary to do this procedure.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	FLASHLIGHT
No specific	1	MIRROR - INSPECTION
No specific	1	RULER - STEEL
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	Torque wrench: range to between 3.08 and 2.52 m.N (27.26 and 22.30 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05BAA1)	Threadlocking Adhesive-- Low strength -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
220	FWD CAB UTILITY AREAS
221AC

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
8	LOCKWASHERS	AIPC 53-14-81-01-080
15	WASHER	AIPC 53-14-81-01-110

E. Referenced Information

REFERENCE	DESIGNATION
TASK 23-72-51-000-001-A	Removal of the Anti-Hijack-System Cameras
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 25-23-42-000-001-A	Removal of the Ceiling Panels - Forward Utility Area
TASK 33-21-12-400-001-A	Installation of the Cabin Entrance Light Dimming Switch
TASK 52-51-00-710-002-A	Operational Test of the Cockpit-Door Locking System (CDLS)
TASK 52-51-00-820-001-A	Adjustment of the Cockpit Door, Electrical Release Strikes and Latch Mechanisms
Cockpit Door - Adjustment of Clearance A ** ON A/C NOT FOR ALL
Cockpit Door - Adjustment of Clearance A ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 52-51-00-860-138-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 52-51-00-865-161-A

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	DOORS/PAX/MONG	1MQ	T13
** ON A/C NOT FOR ALL
122VU	DOORS CKPT LOCK	1MQ	T13
122VU	COCKPIT DOOR LOCK SYSTEM	1MQ	T13

Subtask 52-51-00-010-064-A ** ON A/C NOT FOR ALL

C. Get Access

Cockpit Door - Adjustment of Clearance A ** ON A/C NOT FOR ALL

(1) Remove anti-hijack camera [12RA] (Ref. AMM TASK 23-72-51-000-001).
(2) Remove ceiling panel 221AC (Ref. AMM TASK 25-23-42-000-001).
(3) Remove the screw (10), the washer (11) and the cover (12) from the upper hinge (15).

Subtask 52-51-00-010-064-B ** ON A/C NOT FOR ALL

C. Get Access

Cockpit Door - Adjustment of Clearance A ** ON A/C NOT FOR ALL

(1) Remove anti-hijack camera [12RA] (Ref. AMM TASK 23-72-51-000-001).
(2) Remove ceiling panel 221AC (Ref. AMM TASK 25-23-42-000-001).
(3) Remove the screw (11), the washer (12) and the cover (13) from the upper hinge (17).

4. Procedure
Subtask 52-51-00-820-063-A ** ON A/C NOT FOR ALL

A. Adjustment of the Cockpit Door - Clearance A between the Cockpit Door and Wall Panel (Pelmet)
(1) If necessary, use the FLASHLIGHT and/or MIRROR - INSPECTION to do the adjustment of clearance A.
(2) Adjust upper clearance A of the cockpit door (3) as follows:
(a) Use the RULER - STEEL to measure clearance A between the top of the closed cockpit door (3) and the cockpit wall panel (1).
1 Make sure that clearance A is between 4 mm (0.1575 in.) and 5.5 mm (0.2165 in.).
(b) If clearance A is not in the limits, adjust it as follows:
1 Open the cockpit door (3) and carefully lift it until there is no load on the adjustment nut (6).

NOTE: The cockpit door (3) weighs approximately 35 kg (77.1618 lb).

2 Remove the locknut (5).
3 Turn the adjustment nut (6) until clearance A is correctly adjusted.
4 Lower the cockpit door (3) and make sure that clearance A is correct.
5 Install the locknut (5).
6 Tighten the locknut (5).
(3) Make sure that limit switch 310LG (4) in the cockpit wall panel (1) is correctly adjusted (Ref. AMM TASK 33-21-12-400-001).
(4) Adjust the cockpit wall panel (1) as follows:
(a) Make sure that the cockpit wall panel (1) and the cockpit door (3) are parallel.
(b) If the cockpit wall panel (1) and the cockpit door (3) are not parallel (up/down), do the steps that follow:
1 Hold the cockpit wall panel (1) and remove the screws (7) and the washers (8) from the bracket (9).

NOTE: The bracket (9) is installed on the lavatory sidewall (2).

2 Apply a layer of Threadlocking Adhesive-- Low strength - (Material No.05BAA1) on the threads of the screws (7).
3 Install the washers (8) and the screws (7). Do not tighten the screws (7) at this time.
4 Hold the cockpit wall panel (1) and remove the screws (13) and the washers (14). If the shims (17) are installed, remove them.
a Do not discard the shims (17). Record the positions of the shims (17).
5 Apply a layer of Threadlocking Adhesive-- Low strength - (Material No.05BAA1) on the threads of the screws (13).
6 Attach the cockpit wall panel (1) to the upper hinge (15) with the bracket (16) and the shims (17) in the order that they were removed.

NOTE: The bracket (16) is part of the upper hinge (15).

7 Install the washers (14) and the screws (13). Do not tighten the screws (13) at this time.
8 Move the cockpit wall panel (1) in the up or down direction until it is parallel to the cockpit door (3).
9 Make sure that clearance A is between 4 mm (0.1575 in.) and 5.5 mm (0.2165 in.)
10 Tighten the screws (7) and (13).

Subtask 52-51-00-820-063-B ** ON A/C NOT FOR ALL

NOTE: The cockpit door (3) weighs approximately 35 kg (77.1618 lb).

2 Remove the locknut (5).
3 Turn the adjustment nut (6) until clearance A is correctly adjusted.
4 Lower the cockpit door (3) and make sure that clearance A is correct.
5 Install the locknut (5).
6 Tighten the locknut (5).
(3) Make sure that limit switch 310LG (4) in the cockpit wall panel (1) is correctly adjusted (Ref. AMM TASK 33-21-12-400-001).
(4) Adjust the cockpit wall panel (1) as follows:
(a) Make sure that the cockpit wall panel (1) and the cockpit door (3) are parallel.
(b) If the cockpit wall panel (1) and the cockpit door (3) are not parallel (up/down), do the steps that follow:
1 Release the lockwashers (8) from the screws (7).
2 Hold the cockpit wall panel (1) and remove the screws (7), the lockwashers (8) and the plates (9) from the bracket (10).

NOTE: The bracket (10) is installed on the lavatory sidewall (2).

3 Discard the lockwashers (8).
4 Attach the cockpit wall panel (1) to the lavatory sidewall (2) with the bracket (10), the plates (9), the new lockwashers AIPC 53-14-81-01-080 LOCKWASHERS (8) and the screws (7). Do not tighten the screws (7) at this time.
5 Hold the cockpit wall panel (1) and remove the screws (14), the lockwashers (15), the plate (16) and the shims (19).
a Do not discard the shims (19). Record the positions of the shims (19).
6 Discard the lockwashers (15).
7 Attach the cockpit wall panel (1) to the upper hinge (17) with the bracket (18) and the shims (19) in the order that they were removed.

NOTE: The bracket (18) is part of the upper hinge (17).

8 Install the plate (16), the new lockwashers AIPC 53-14-81-01-110 WASHER (15) and the screws (14). Do not tighten the screws (14) at this time.

NOTE: The plate (16) is part in the primer color. The plate (16) is installed on top of the bracket (18) and directly under the lockwashers (15).

9 Move the cockpit wall panel (1) in the up or down direction until it is parallel to the cockpit door (3).
10 Make sure that clearance A is between 4 mm (0.1575 in.) and 5.5 mm (0.2165 in.)
11 TORQUE the screws (7) and (14) to between 3.08 and 2.52 m.N (27.26 and 22.30 lbf.in )

.
12 Safety the screws (7) with the lockwashers (8).
13 Safety the screws (14) with the lockwashers (15).

Subtask 52-51-00-865-162-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	DOORS/PAX/MONG	1MQ	T13
** ON A/C NOT FOR ALL
122VU	DOORS CKPT LOCK	1MQ	T13
122VU	COCKPIT DOOR LOCK SYSTEM	1MQ	T13

Subtask 52-51-00-710-074-A

C. Operational Test of the Cockpit Door and the Latch Mechanism
(1) Do an operational test of the cockpit door (3) and the latch mechanism (Ref. AMM TASK 52-51-00-710-002).
(2) If the results of the test are unsatisfactory or you cannot adjust clearance A as in step 4.A:
(a) Do the adjustment procedure of the cockpit door (3), the electrical release strikes and the latch mechanisms (Ref. AMM TASK 52-51-00-820-001).

5. Close-up
Subtask 52-51-00-410-059-A ** ON A/C NOT FOR ALL

A. Close Access

Cockpit Door - Adjustment of Clearance A ** ON A/C NOT FOR ALL

(1) Put the cover (12), the washer (11) and the screw (10) in position on the upper hinge (15).
(2) Tighten the screw (10).
(3) Install ceiling panel 221AC (Ref. AMM TASK 25-23-42-000-001).
(4) Install anti-hijack camera [12RA] (Ref. AMM TASK 23-72-51-000-001).

Subtask 52-51-00-410-059-B ** ON A/C NOT FOR ALL

A. Close Access

Cockpit Door - Adjustment of Clearance A ** ON A/C NOT FOR ALL

(1) Put the cover (13), the washer (12) and the screw (11) in position on the upper hinge (17).
(2) Tighten the screw (11).
(3) Install ceiling panel 221AC (Ref. AMM TASK 25-23-42-000-001).
(4) Install anti-hijack camera [12RA] (Ref. AMM TASK 23-72-51-000-001).

Subtask 52-51-00-860-139-A

B. Put the aircraft back to the serviceable condition.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.02 06:28:22 UTC