Check of the Preload of the Cover Plate

TASK 52-10-00-220-007-A
Check of the Preload of the Cover Plate

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
831, 832, 841, 842

C. Referenced Information

REFERENCE	DESIGNATION
TASK 52-10-00-010-001-A	Opening of the Passenger/Crew Door
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 52-10-00-860-001-A	Special Precautions before Work on the Passenger/Crew Door
Cover Plate - Check of the Preload
Cover Plate - Bend Line

3. Job Set-up
Subtask 52-10-00-010-082-A

A. Get Access

WARNING: DO NOT OPEN THE PASSENGER/CREW DOOR IF THE WIND SPEED IS MORE THAN 65 KNOTS.

WARNING: BEFORE YOU START WORK ON THE DOOR, MAKE SURE THAT:

THE EMERGENCY CONTROL HANDLE IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.
THE PERCUSSION LEVER OF THE DOOR-DAMPER AND EMERGENCY-OPERATION CYLINDER IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.

IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE DOOR CAN OPEN WITH FORCE OR THE ESCAPE SLIDE CAN DEPLOY SUDDENLY. THIS CAN CAUSE INJURY AND/OR DAMAGE.

WARNING: STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. IF THE RED WARNING LIGHT FLASHES, REMAINING PRESSURE CAN CAUSE THE DOOR TO OPEN SUDDENLY AND CAN:

KILL OR CAUSE SERIOUS INJURY TO PERSONS
CAUSE DAMAGE TO THE AIRCRAFT.

(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at zone 831 or 841 or 832 or 842.
(2) Open the applicable passenger/crew door 831 or 841 or 832 or 842 (Ref. AMM TASK 52-10-00-010-001).
(3) Obey the special precautions before you start work on the door. (Ref. AMM TASK 52-10-00-860-001)

Subtask 52-10-00-865-083-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

4. Procedure
Subtask 52-10-00-220-084-A

A. Check of the Cover Plate Adjustment

Cover Plate - Check of the Preload

(1) Close the door and measure the gap between the cover plate (2) and the fuselage skin.
(a) Measure the gap J at equal intervals (points 1 to 5). Gap J must not be more than 1.5 mm (0.0591 in.).

NOTE: After adjustment, you can possibly see a permitted bend line on the cover plate.

Cover Plate - Bend Line

(2) If gap J is not in the tolerances, manually fold the cover plate (2) to get the correct adjustment.

5. Close-up
Subtask 52-10-00-865-084-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

Subtask 52-10-00-410-091-A

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Obey the special precautions after work on the door. (Ref. AMM TASK 52-10-00-860-001)
(3) Close the applicable passenger crew/door 831 841 or 832 or 842 (Ref. AMM TASK 52-10-00-410-001).
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 01:35:53 UTC