Installation of the Emergency Exit Hatch

TASK 52-21-11-400-001-A
Installation of the Emergency Exit Hatch

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

CAUTION: THIS PART IS A REMOVABLE STRUCTURAL COMPONENT (RSC), WHICH CAN BE MOVED BETWEEN AIRCRAFT. THUS IT CAN HAVE DIFFERENT OPERATION CONDITIONS AND A DIFFERENT LIFE RECORD (FLIGHT HOURS/FLIGHT CYCLES/CALENDAR) FROM THE AIRCRAFT IT IS INSTALLED ON OR REMOVED FROM. THE OPERATOR IS RESPONSIBLE FOR THE SPECIFIC TRACKING AND CONTINUED AIRWORTHINESS OF REMOVABLE STRUCTURAL COMPONENTS. INCORRECT MAINTENANCE OF THESE COMPONENTS CAN CAUSE A RISK FOR THE FLIGHT SAFETY.

ZONE: 833
ZONE: 834
ZONE: 843
ZONE: 844

1. Reason for the Job
To install the emergency exit hatch (referred to as hatch) after maintenance from the inner side of the passenger compartment.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SPRING BALANCE 5 DAN (12 LBF)
98D52207507000	1	PIN SET-EMERGENCY SLIDE,EMERGENCY EXITS
98D52207543000	1	DEVICE-SAFETY,EMERGENCY EXIT

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03JAB1)	Silicone base Grease-- Paste -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
833	EMERGENCY EXITS
834	EMERGENCY EXITS
843	EMERGENCY EXITS
844	EMERGENCY EXITS

D. Referenced Information

REFERENCE	DESIGNATION
TASK 25-62-00-081-001-A	Special Precautions after Work on the Offwing Escape-Slide Systems
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 52-21-11-820-001-A	Adjustment of the Emergency Exit Hatch
TASK 52-21-11-820-002-A	Adjustment of the Hatch Control Handle
TASK 52-71-13-400-001-A	Installation of the Proximity Switches
Emergency Exit Hatch ** ON A/C NOT FOR ALL
Emergency Exit Hatch ** ON A/C NOT FOR ALL
Emergency Exit Hatch ** ON A/C NOT FOR ALL
Emergency Exit Hatch ** ON A/C NOT FOR ALL
Detail Check of Emergency Exit Hatch
Correct Installation Position of Hatch Seal
Cover Flap of the Emergency Exit Hatch

3. Job Set-up
Subtask 52-21-11-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration

Emergency Exit Hatch ** ON A/C NOT FOR ALL

(1) Make sure that the latch pin of the slide release mechanism is retracted to the DISARMED position.
(2) Remove the 98D52207507000 PIN SET-EMERGENCY SLIDE,EMERGENCY EXITS from the release lever of the escape-slide release mechanism.
(3) Remove the 98D52207543000 DEVICE-SAFETY,EMERGENCY EXIT from the pull lever of the hatch control handle.

Subtask 52-21-11-220-050-A ** ON A/C NOT FOR ALL

B. Check of the Hatch Seal
(1) Measure the clearance "A" between the contour of the hatch skin and the lip of the hatch seal.

Detail Check of Emergency Exit Hatch ** ON A/C NOT FOR ALL

(2) The clearance "A" must be between 9.0 mm (0.35 in.) and 10.0 mm (0.39 in.).
(3) If the clearance "A" is less than 9.0 mm (0.35 in.):

Manually put the hatch seal in its correct position to make sure the clearance is in the specified limits.

4. Procedure
Subtask 52-21-11-410-059-B ** ON A/C NOT FOR ALL

A. Installation of the Emergency Exit Hatch

Emergency Exit Hatch ** ON A/C NOT FOR ALL

NOTE: If you do not install the same hatch you must obey the inspection instructions given in ISB 52-1045.

NOTE: If you have removed more than one hatch, remove the temporary mark you made on each hatch (that shows its initial position) after installation.

The latch pin of the forward hatch (Z833 or Z843) shows in the rear direction
The latch pin of the aft hatch (Z834 or Z844) shows in the forward direction.

(5) Make sure that the hatch seal is in the correct position.
(6) Examine the hatch position to make sure that there is an offset between the hatch lining and the dado panels.
(7) Push the top of the hatch into the opening of the fuselage and hold it in this position.
(8) Lift the spring-loaded linkage to release the blockage of the hatch control handle.
(9) Lock the hatch in the closed position as follows:

CAUTION: STOP THE LOCKING PROCEDURE IMMEDIATELY IF THE OPERATION FORCE ON THE PULL LEVER IS VERY HIGH. THIS PREVENTS THE INCORRECT INSTALLATION OF THE EMERGENCY EXIT HATCH.

(a) Push the pull lever of the hatch control handle in its overcenter position to lock the hatch into the opening.

NOTE: If the operation force of the pull lever is very high, stop the locking procedure immediately. The high operation force is the result of an incorrect engagement of the hook brackets with the pivot fittings. If this occurs, remove the hatch and install it again.

Subtask 52-21-11-410-059-D ** ON A/C NOT FOR ALL

A. Installation of the Emergency Exit Hatch

Emergency Exit Hatch ** ON A/C NOT FOR ALL

NOTE: If you have removed more than one hatch, remove the temporary mark you made on each hatch (that shows its initial position) after installation.

(1) Clean the component interfaces and the adjacent area.
(2) Apply Silicone base Grease-- Paste - (Material No.03JAB1) to the area where the hatch seal touches the adjacent fuselage.
(3) Put the hatch in position on the door sill until the hook brackets engage correctly with the pivot fittings.
(4) Make sure that the hatch seal is in the correct position.
(5) Examine the hatch position to make sure that there is an offset between the hatch lining and the dado panels.
(6) During the installation:

Move the hatch seal to make sure that it does not touch the release lever and the pivot pin
Make sure that the hatch seal stays attached to seal retainer.

(7) Push the top of the hatch into the opening of the fuselage and hold it in this position.
(8) Lift the spring-loaded linkage to release the locked hatch control handle.
(9) Lock the hatch in the closed position as follows:

CAUTION: STOP THE LOCKING PROCEDURE IMMEDIATELY IF THE OPERATION FORCE ON THE PULL LEVER IS VERY HIGH. THIS PREVENTS THE INCORRECT INSTALLATION OF THE EMERGENCY EXIT HATCH.

(a) Push the pull lever of the hatch control handle in its overcenter position to lock the hatch into the opening.

Subtask 52-21-11-860-061-A ** ON A/C NOT FOR ALL

B. To Arm the Escape-Slide Release Mechanism

Emergency Exit Hatch ** ON A/C NOT FOR ALL

(1) Push the latch pin against the spring and turn it a quarter turn clockwise.
(2) Release the latch pin and make sure that it extends to the ARMED position.

NOTE: The white indicator light SLIDE ARMED in the cabin lining comes on.

(3) Install the cover flap on the hatch and push it against the hatch.

NOTE: The white indicator light SLIDE ARMED goes off.

Subtask 52-21-11-820-055-A ** ON A/C NOT FOR ALL

C. Adjustment of the Emergency Exit Hatch

Detail Check of Emergency Exit Hatch ** ON A/C NOT FOR ALL

(1) Examine the position of the replaced hatch from the outboard side as follows:
(a) Make sure that skin offset between the hatch contour and the fuselage contour is correct (Ref. AMM TASK 52-21-11-820-001).
(b) Make sure that the clearances between the hatch and the fuselage are correct (Ref. AMM TASK 52-21-11-820-001).
(c) Make sure that the clearance between the pull lever and the roller of the flush panel is correct (Ref. AMM TASK 52-21-11-820-002).
(d) Make sure that the hatch seal is in its correct installation position. If necessary, do the installation of the hatch again.

Correct Installation Position of Hatch Seal ** ON A/C NOT FOR ALL

Subtask 52-21-11-700-050-B ** ON A/C NOT FOR ALL

D. Test

Cover Flap of the Emergency Exit Hatch ** ON A/C NOT FOR ALL

(1) Do a test of the force necessary to open the cover flap:

NOTE: The test procedure is the same for all the emergency exit hatches.

(a) Attach a SPRING BALANCE 5 DAN (12 LBF) (2) to the grip of the cover flap (1).
(b) Pull the spring scale (2) inboard, at a right angle to the cover flap (1).
(c) Make sure that the force necessary to open the cover flap (1) is 4.0 +1.0 daN or -1.0 daN (8.99 +2.25 lbf or -2.25 lbf).
(d) If adjustment is necessary, move the arms of the fastener (3) together.
(e) Make sure that the proximity sensor of the door warning system has the correct target value (Ref. AMM TASK 52-71-13-400-001).

5. Close-up
Subtask 52-21-11-865-051-A ** ON A/C NOT FOR ALL

A. 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
49VU	LIGHTING/EMER LT/CABIN	2WL	H06
49VU	LIGHTING/EMER LT/CABIN	1WL	H05
122VU	LIGHTING/CABIN/EMER/LT	3WL	V07

Subtask 52-21-11-410-060-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Remove the lockpin assembly from the inflation reservoir (Ref. AMM TASK 25-62-00-081-001).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the FWD or the aft passenger/crew door (Ref. AMM TASK 52-10-00-410-001).

[Rev.10 from 2021] 2026.04.01 03:55:01 UTC