DOC AIRBUS | AMM A320FDetailed Visual Inspection of the Door Locking Mechanism
TASK 52-11-21-220-001-A
Detailed Visual Inspection of the Door Locking Mechanism
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 52-11-21-861-050-A Subtask 52-11-21-010-062-A
Subtask 52-11-21-220-052-A
Subtask 52-11-21-420-061-A
[Rev.10 from 2021]
2026.04.02 06:27:24 UTC
Detailed Visual Inspection of the Door Locking Mechanism
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 |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 831, 841 |
| 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 52-11-21-000-001-A | Removal of the Door Locking Mechanism |
| TASK 52-11-21-400-001-A | Installation of the Door Locking Mechanism |
Lowering ShaftSubtask 52-11-21-861-050-A Subtask 52-11-21-010-062-A
B. Get Access
(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 52-11-21-865-060-A 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.
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:
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at the applicable FWD passenger/crew door 831 or 841. - KILL OR CAUSE SERIOUS INJURY TO PERSONS
- CAUSE DAMAGE TO THE AIRCRAFT.
(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)
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 52-11-21-020-061-A | 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 |
D. Removal of the Door Locking Mechanism
(Ref. AMM TASK 52-11-21-000-001)
(1) Remove the lowering shaft, if not removed.
(2) Remove the inner control handle, the outer control handle and the gearbox, if not removed.
(3) Remove the reducer shaft mechanism, if not removed.
(4) Remove the upper and lower connection links, if not removed.
(5) Remove the compensation mechanism, if not removed.
(6) Remove the locking shaft mechanism, if not removed.
(7) Remove the safety pin and the locking hook, if not removed.
4. Procedure(Ref. AMM TASK 52-11-21-000-001)
(1) Remove the lowering shaft, if not removed.
(2) Remove the inner control handle, the outer control handle and the gearbox, if not removed.
(3) Remove the reducer shaft mechanism, if not removed.
(4) Remove the upper and lower connection links, if not removed.
(5) Remove the compensation mechanism, if not removed.
(6) Remove the locking shaft mechanism, if not removed.
(7) Remove the safety pin and the locking hook, if not removed.
Subtask 52-11-21-220-052-A
A. Inspection of the Lowering Shaft
(1) Do a detailed visual inspection of the bushes, the bearing and the parts of the lowering shaft.
(2) Make sure that the dimensions are correct.
(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 bearing (3) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-060-A (1) Do a detailed visual inspection of the bushes, the bearing and the parts of the lowering shaft.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| DD | 10.966 | 10.980 | | | 10.949 | | |
| OD 1 | (0.4317) | (0.4323) | | | (0.4311) | | |
| | | | 0.0200 | 0.1420 | | | 0.1030 |
| | | | (0.0008) | (0.0056) | | | (0.0041) |
| DD | 11.000 | 11.108 | | | | 11.052 | |
| ID 2 | (0.4331) | (0.4373) | | | | (0.4351) | |
(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 bearing (3) is worn or unserviceable:
(a) Replace the flange bearing assy.
B. Inspection of the Lowering Shaft
(1) Do a detailed visual inspection of the bushes, the bearing and the parts of the lowering shaft.
(2) Make sure that the dimensions are correct.
(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 bearing (3) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-053-A (1) Do a detailed visual inspection of the bushes, the bearing and the parts of the lowering shaft.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| EE | 6.344 | 6.353 | | | 6.332 | | |
| OD 4 | (0.2498) | (0.2501) | | | (0.2493) | | |
| | | | 0.0050 | 0.0360 | | | 0.0720 |
| | | | (0.0002) | (0.0014) | | | (0.0028) |
| EE | 6.358 | 6.380 | | | | 6.404 | |
| ID 5 | (0.2503) | (0.2512) | | | | (0.2521) | |
(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 bearing (3) is worn or unserviceable:
(a) Replace the flange bearing assy.
C. Inspection of the Inner and Outer Contol Handles and Gearbox
(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the inner and outer control handles and the geabox.
(2) Make sure that the dimensions are correct.
(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 (13) is worn or unserviceable:
(a) Replace the rod end of the link assembly (13).
Subtask 52-11-21-220-054-A (1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the inner and outer control handles and the geabox.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| DD | 6.344 | 6.353 | | | 6.332 | | |
| OD 11 | (0.2498) | (0.2501) | | | (0.2493) | | |
| | | | 0.0050 | 0.0360 | | | 0.0720 |
| | | | (0.0002) | (0.0014) | | | (0.0028) |
| DD | 6.358 | 6.380 | | | | 6.404 | |
| ID 12 | (0.2503) | (0.2512) | | | | (0.2521) | |
(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 (13) is worn or unserviceable:
(a) Replace the rod end of the link assembly (13).
D. Inspection of the Reducer Shaft Mechanism
(1) Do a detailed visual inspection of the link assemblies (at rod level) and the parts of the reducer shaft mechanism.
(2) If the link assemblies (22) and (23) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (22) and (23).
(3) If the bearing (21) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-055-A (1) Do a detailed visual inspection of the link assemblies (at rod level) and the parts of the reducer shaft mechanism.
(2) If the link assemblies (22) and (23) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (22) and (23).
(3) If the bearing (21) is worn or unserviceable:
(a) Replace the flange bearing assy.
E. Inspection of the Upper and Lower Connection Links
(1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
Subtask 52-11-21-220-061-A (1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| BB | 15.882 | 15.893 | | | 15.870 | | |
| OD 31 | (0.6253) | (0.6257) | | | (0.6248) | | |
| | | | 0.0000 | 0.0360 | | | 0.0720 |
| | | | (0.0000) | (0.0014) | | | (0.0028) |
| BB | 15.893 | 15.918 | | | | 15.942 | |
| ID 30 | (0.6257) | (0.6267) | | | | (0.6276) | |
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
F. Inspection of the Upper and Lower Connection Links
(1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
Subtask 52-11-21-220-062-A (1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 15.882 | 15.893 | | | 15.870 | | |
| OD 33 | (0.6253) | (0.6257) | | | (0.6248) | | |
| | | | 0.0000 | 0.0360 | | | 0.0720 |
| | | | (0.0000) | (0.0014) | | | (0.0028) |
| CC | 15.893 | 15.918 | | | | 15.942 | |
| ID 32 | (0.6257) | (0.6267) | | | | (0.6276) | |
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
G. Inspection of the Upper and Lower Connection Links
(1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
Subtask 52-11-21-220-063-A (1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| BB | 12.704 | 12.715 | | | 12.691 | | |
| OD 37 | (0.5002) | (0.5006) | | | (0.4996) | | |
| | | | 0.0000 | 0.0370 | | | 0.0740 |
| | | | (0.0000) | (0.0015) | | | (0.0029) |
| BB | 12.715 | 12.741 | | | | 12.765 | |
| ID 36 | (0.5006) | (0.5016) | | | | (0.5026) | |
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
H. Inspection of the Upper and Lower Connection Links
(1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
Subtask 52-11-21-220-056-A (1) Do a detailed visual inspection of the bushes, the connection links (at rod level) and the parts of the upper and lower connection links.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 12.704 | 12.715 | | | 12.691 | | |
| OD 39 | (0.5002) | (0.5006) | | | (0.4996) | | |
| | | | 0.0000 | 0.0370 | | | 0.0740 |
| | | | (0.0000) | (0.0015) | | | (0.0029) |
| CC | 12.715 | 12.741 | | | | 12.765 | |
| ID 38 | (0.5006) | (0.5016) | | | | (0.5026) | |
(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 connection links (34) and (35) are worn or unserviceable:
(a) Replace the rod end of the connection links (34) and (35).
I. Inspection of the Compensation Mechanism
(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
(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).
Subtask 52-11-21-220-064-A (1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| B | 22.235 | 22.248 | | | 22.220 | | |
| OD 41 | (0.8754) | (0.8759) | | | (0.8748) | | |
| | | | 0.0000 | 0.0430 | | | 0.0860 |
| | | | (0.0000) | (0.0017) | | | (0.0034) |
| B | 22.248 | 22.278 | | | | 22.306 | |
| ID 40 | (0.8759) | (0.8771) | | | | (0.8782) | |
(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).
J. Inspection of the Compensation Mechanism
(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
(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).
Subtask 52-11-21-220-065-A (1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| B | 34.842 | 34.958 | | | 34.923 | | |
| OD 42 | (1.3717) | (1.3763) | | | (1.3749) | | |
| | | | 0.0000 | 0.1570 | | | 0.1140 |
| | | | (0.0000) | (0.0062) | | | (0.0045) |
| B | 34.958 | 34.999 | | | | 35.037 | |
| ID 40 | (1.3763) | (1.3779) | | | | (1.3794) | |
(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).
K. Inspection of the Compensation Mechanism
(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
(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).
Subtask 52-11-21-220-066-A (1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| B | 22.235 | 22.248 | | | 22.220 | | |
| OD 44 | (0.8754) | (0.8759) | | | (0.8748) | | |
| | | | 0.0000 | 0.0430 | | | 0.0860 |
| | | | (0.0000) | (0.0017) | | | (0.0034) |
| B | 22.248 | 22.278 | | | | 22.306 | |
| ID 43 | (0.8759) | (0.8771) | | | | (0.8782) | |
(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).
L. Inspection of the Compensation Mechanism
(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
(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).
Subtask 52-11-21-220-057-A (1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the compensation mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| B | 28.959 | 28.980 | | | 28.938 | | |
| OD 44 | (1.1401) | (1.1409) | | | (1.1393) | | |
| | | | 0.0200 | 0.0620 | | | 0.1240 |
| | | | (0.0008) | (0.0024) | | | (0.0049) |
| B | 29.000 | 29.021 | | | | 29.062 | |
| ID 45 | (1.1417) | (1.1426) | | | | (1.1442) | |
(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).
M. Inspection of the Locking Shaft Mechanism
(1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-067-A (1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 28.595 | 28.608 | | | 28.577 | | |
| OD 52 | (1.1258) | (1.1263) | | | (1.1251) | | |
| | | | 0.0000 | 0.0540 | | | 0.2910 |
| | | | (0.0000) | (0.0021) | | | (0.0115) |
| CC | 28.608 | 28.649 | | | | 28.868 | |
| ID 51 | (1.1263) | (1.1279) | | | | (1.1365) | |
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
N. Inspection of the Locking Shaft Mechanism
(1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-068-A (1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 25.411 | 25.420 | | | 25.396 | | |
| OD 57 | (1.0004) | (1.0008) | | | (0.9998) | | |
| | | | 0.0050 | 0.0450 | | | 0.0900 |
| | | | (0.0002) | (0.0018) | | | (0.0035) |
| CC | 25.425 | 25.456 | | | | 25.486 | |
| ID 56 | (1.0010) | (1.0022) | | | | (1.0034) | |
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
O. Inspection of the Locking Shaft Mechanism
(1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-069-A (1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 7.941 | 7.950 | | | 7.930 | | |
| OD 61 | (0.3126) | (0.3130) | | | (0.3122) | | |
| | | | 0.0000 | 0.0320 | | | 0.0640 |
| | | | (0.0000) | (0.0013) | | | (0.0025) |
| CC | 7.950 | 7.973 | | | | 7.994 | |
| ID 60 | (0.3130) | (0.3139) | | | | (0.3147) | |
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
P. Inspection of the Locking Shaft Mechanism
(1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-070-A (1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 7.941 | 7.950 | | | 7.930 | | |
| OD 63 | (0.3126) | (0.3130) | | | (0.3122) | | |
| | | | 0.0000 | 0.0320 | | | 0.0640 |
| | | | (0.0000) | (0.0013) | | | (0.0025) |
| CC | 7.950 | 7.973 | | | | 7.994 | |
| ID 62 | (0.3130) | (0.3139) | | | | (0.3147) | |
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
Q. Inspection of the Locking Shaft Mechanism
(1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
Subtask 52-11-21-220-058-A (1) Do a detailed visual inspection of the bushes, the bearing, the link assemblies (at rod level) and the parts of the locking shaft mechanism.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 28.595 | 28.608 | | | 28.577 | | |
| OD 64 | (1.1258) | (1.1263) | | | (1.1251) | | |
| | | | 0.0000 | 0.0540 | | | 0.2910 |
| | | | (0.0000) | (0.0021) | | | (0.0115) |
| CC | 28.608 | 28.649 | | | | 28.868 | |
| ID 65 | (1.1263) | (1.1279) | | | | (1.1365) | |
(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 (53), (54), (55) and (59) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (53), (54), (55) and (59).
(5) If the bearing (58) is worn or unserviceable:
(a) Replace the flange bearing assy.
R. Inspection of the Locking Hook and Safety Pin
(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the locking hook and safety pin.
(2) Make sure that the dimensions are correct.
(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 (72) and (76) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (72) and (76).
Subtask 52-11-21-220-071-A (1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the locking hook and safety pin.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 14.183 | 14.194 | | | 14.182 | | |
| OD 71 | (0.5584) | (0.5588) | | | (0.5583) | | |
| | | | 0.0060 | 0.0350 | | | 0.0600 |
| | | | (0.0002) | (0.0014) | | | (0.0024) |
| CC | 14.200 | 14.218 | | | | 14.242 | |
| ID 70 | (0.5591) | (0.5598) | | | | (0.5607) | |
(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 (72) and (76) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (72) and (76).
S. Inspection of the Locking Hook and Safety Pin
(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the locking hook and safety pin.
(2) Make sure that the dimensions are correct.
(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 (72) and (76) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (72) and (76).
5. Close-up(1) Do a detailed visual inspection of the bushes, the link assemblies (at rod level) and the parts of the locking hook and safety pin.
(2) Make sure that the dimensions are correct.
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| GG | 19.053 | 19.064 | | | 19.041 | | |
| OD 73 | (0.7501) | (0.7506) | | | (0.7496) | | |
| | | | 0.0060 | 0.0480 | | | 0.0840 |
| | | | (0.0002) | (0.0019) | | | (0.0033) |
| GG | 19.070 | 19.101 | | | | 19.125 | |
| ID 75 | (0.7508) | (0.7520) | | | | (0.7530) | |
(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 (72) and (76) are worn or unserviceable:
(a) Replace the rod end of the link assemblies (72) and (76).
Subtask 52-11-21-420-061-A
A. Installation of the Door Locking Mechanism
(Ref. AMM TASK 52-11-21-400-001)
(1) Install the lowering shaft.
(2) Install the inner control handle, the outer control handle and the gearbox.
(3) Install the reducer shaft mechanism.
(4) Install the upper and lower connection links.
(5) Install the compensation mechanism.
(6) Install the locking shaft mechanism.
(7) Install the safety pin and locking hook.
Subtask 52-11-21-865-061-A (Ref. AMM TASK 52-11-21-400-001)
(1) Install the lowering shaft.
(2) Install the inner control handle, the outer control handle and the gearbox.
(3) Install the reducer shaft mechanism.
(4) Install the upper and lower connection links.
(5) Install the compensation mechanism.
(6) Install the locking shaft mechanism.
(7) Install the safety pin and locking hook.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 52-11-21-410-062-A | 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 |
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 52-11-21-862-050-A (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).