Detailed Visual Inspection of the Release Mechanism of the Emergency Escape Slide of the FWD Passenger/Crew Door

TASK 52-11-22-220-001-A
Detailed Visual Inspection of the Release Mechanism of the Emergency Escape Slide of the FWD Passenger/Crew Door

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 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
831, 841

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
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
TASK 52-10-00-860-002-A	Special Precautions after Work on the Passenger/Crew Door
TASK 52-10-00-915-001-A	Replacement of the Bonded Bushes (with Seal Bead)
TASK 52-11-22-000-001-A	Removal of the Release Mechanism of the Emergency Escape Slide of the FWD Passenger/Crew Door
TASK 52-11-22-400-001-A	Installation of the Release Mechanism of the Emergency Escape Slide of the FWD Passenger/Crew Door
Emergency Control Handle
Escape Slide Gearbox
Percussion System
Flexible Control
Telescopic Forks and Girt Bar Control Shaft
Escape Slide Control Mechanism

3. Job Set-up
Subtask 52-11-22-861-050-A

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001)

Subtask 52-11-22-010-070-A

B. Get Access

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

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 the applicable FWD passenger/crew door 831 or 841.
(2) Open the applicable FWD passenger/crew door 831 or 841 (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 52-11-22-865-059-A

C. 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

Subtask 52-11-22-020-058-A

D. Removal of the Release Mechanism of the Emergency Escape Slide
(Ref. AMM TASK 52-11-22-000-001)
(1) Remove the emergency control handle, if not removed.
(2) Remove the escape slide gearbox, if not removed.
(3) Remove the percussion system, if not removed.
(4) Remove the flexible control, if not removed.
(5) Remove the telescopic forks and the girt bar control shaft, if not removed.
(6) Remove the escape slide control mechanism, if not removed.

4. Procedure
Subtask 52-11-22-220-053-A

A. Inspection of the Emergency Control Handle

Emergency Control Handle

(1) Do a detailed visual inspection of the link assemblies (at rod level) and the parts of the emergency control handle.
(2) If the link assemblies (1), (2), (4) and (5) are worn or unserviceable:
(a) Replace the rod end at the link assemblies (1), (2), (4) and (5).
(3) If the bearing (3) is worn or unserviceable:
(a) Replace the flange bearing assy.

Subtask 52-11-22-220-054-A

B. Inspection of the Escape Slide Gearbox

Escape Slide Gearbox

(1) Do a detailed visual inspection of the link assemblies (at rod level) and the parts of the escape slide gearbox.
(2) If the link assemblies (10) and (11) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (10) and (11).

Subtask 52-11-22-220-055-A

C. Inspection of the Percussion System

Percussion System

(1) Do a detailed visual inspection of the bushes, the eye end assembly, the link assemblies (at rod level) and the parts of the percussion mechanism.
(2) Make sure that the dimensions are correct.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
EE	15.882	15.893			15.870
OD 23	(0.6253)	(0.6257)			(0.6248)
			0.0000	0.0360			0.0720
			(0.0000)	(0.0014)			(0.0028)
EE	15.893	15.918				15.942
ID 22	(0.6257)	(0.6267)				(0.6276)

(3) If the wear of the bushes is not in the tolerances:
(a) Replace the bushes (Ref. AMM TASK 52-10-00-915-001).
(b) Or replace the parts on which they are installed.
(4) If the link assemblies (21), (24) and (25) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (21), (24) and (25).
(5) If the eye end assembly (26) is worn or unserviceable:
(a) Replace the eye end assembly (26).

Subtask 52-11-22-220-059-A

D. Inspection of the Percussion System

Percussion System

(1) Do a detailed visual inspection of the bushes, the eye end assembly, the link assemblies (at rod level) and the parts of the percussion mechanism.
(2) Make sure that the dimensions are correct.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
FF	9.531	9.540			9.520
OD 28	(0.3752)	(0.3756)			(0.3748)
			0.0000	0.0320			0.0640
			(0.0000)	(0.0013)			(0.0025)
FF	9.540	9.563				9.584
ID 27	(0.3756)	(0.3765)				(0.3773)

Subtask 52-11-22-220-056-A

E. Inspection of the Flexible Control

Flexible Control

(1) Do a detailed visual inspection of the eye end assemblies (30) and (31) and the parts of the flexible control.
(2) If the eye end assemblies (30) and (31) are worn or unserviceable:
(a) Replace the eye end assemblies (30) and (31).

Subtask 52-11-22-220-057-A

F. Inspection of the Telescopic Forks and the Girt Bar Control Shaft

Telescopic Forks and Girt Bar Control Shaft

(1) Do a detailed visual inspection of the bearings, the link assemblies (at rod level) and the parts of the telescopic forks and the girt bar control shaft.
(2) Make sure that the dimensions are correct.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
DD	14.980	14.994			14.959
OD 43	(0.5898)	(0.5903)			(0.5889)
			0.0220	0.0630			0.1260
			(0.0009)	(0.0025)			(0.0050)
DD	15.016	15.043				15.085
ID 44	(0.5912)	(0.5922)				(0.5939)

(3) If the wear of the bushes is not in the tolerances:
(a) Replace the bushes (Ref. AMM TASK 52-10-00-915-001).
(b) Or replace the parts on which they are installed.
(4) If the link assembly (46) is worn or unserviceable:
(a) Replace the rod end of the link assembly (46).
(5) If the bearings (40), (41) and (42) are worn or unserviceable:
(a) Replace the flange bearing assemblies (40), (41) and (42).

Subtask 52-11-22-220-060-A

G. Inspection of the Telescopic Forks and the Girt Bar Control Shaft

Telescopic Forks and Girt Bar Control Shaft

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
DD	14.980	14.994			14.959
OD 43	(0.5898)	(0.5903)			(0.5889)
			0.0220	0.0630			0.1260
			(0.0009)	(0.0025)			(0.0050)
DD	15.016	15.043				15.085
ID 45	(0.5912)	(0.5922)				(0.5939)

(3) If the wear of the bushes is not in the tolerances:
(a) Replace the bushes (Ref. AMM TASK 52-10-00-915-001).
(b) Or replace the parts on which they are installed.
(4) If the link assembly (46) is worn or unserviceable:
(a) Replace the rod end of the link assembly (46).
(5) If the bearings (40), (41) and (42) are worn or unserviceable:
(a) Replace the flange bearing assemblies (40), (41) and (42).

Subtask 52-11-22-220-058-A

H. Inspection of the Escape Slide Control Mechanism

Escape Slide Control Mechanism

(1) Do a detailed visual inspection of the bearings, the link assemblies (at rod level) and the parts of the escape slide control mechanism.
(2) Make sure that the dimensions are correct.

FIG. DETAIL AND ITEM N°	ORIGINAL MANUFACTURING LIMITS	IN-SERVICE WEAR LIMITS
EE	15.882	15.893			15.870
OD 51	(0.6253)	(0.6257)			(0.6248)
			0.0000	0.0360			0.0720
			(0.0000)	(0.0014)			(0.0028)
EE	15.893	15.918				15.942
ID 50	(0.6257)	(0.6267)				(0.6276)

(3) If the wear of the bushes is not in the tolerances:
(a) Replace the bushes (Ref. AMM TASK 52-10-00-915-001).
(b) Or replace the parts on which they are installed.
(4) If the link assemblies (52), (53) and (54) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (52), (53) and (54).

5. Close-up
Subtask 52-11-22-420-058-A

A. Installation of the Release Mechanism of the Emergency Escape Slide
(Ref. AMM TASK 52-11-22-400-001)
(1) Install the emergency control handle.
(2) Install the escape slide gearbox.
(3) Install the percussion system.
(4) Install the flexible control.
(5) Install the telescopic forks and the girt bar control shaft.
(6) Install the escape slide control mechanism.

Subtask 52-11-22-865-060-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 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 52-11-22-410-065-A

C. Close Access
(1) Obey the special precautions after the work on the door (Ref. AMM TASK 52-10-00-860-002).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Close the FWD passenger/crew door 831 or 841 (Ref. AMM TASK 52-10-00-410-001).
(5) Remove the access platform(s).

Subtask 52-11-22-862-050-A

D. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001)

[Rev.10 from 2021] 2026.04.01 04:11:05 UTC