Removal of the One or Eleven O'clock Strut and Strut Bushing [CFMB]
TASK 78-32-11-000-001-A
Removal of the One or Eleven O'clock Strut and Strut Bushing
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 78-32-11-941-050-A ** ON A/C NOT FOR ALL
Subtask 78-32-11-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:11:55 UTC
Removal of the One or Eleven O'clock Strut and Strut Bushing
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 1M(3 FT) |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP1039) | acetone |
| (Material No.CP1041) | isopropyl alcohol |
| (Material No.CP2011) | stoddard solvent |
| (Material No.CP2243) | sealant |
| (Material No.CP2559) | ardrox 552 |
| (Material No.CP2560) | turco ind 79 |
| (Material No.CP2566) | mag-chem teksol |
| (Material No.CP2584) | degreasol 99 R |
| (Material No.CP2656) | mag-chem skysol |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 78-30-00-481-041-B | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-36-00-010-040-B | Opening of the Thrust Reverser Doors |
Subtask 78-32-11-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 78-32-11-869-050-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Make sure that:
Subtask 78-32-11-941-051-A ** ON A/C NOT FOR ALL - the slats and flaps are retracted,
- the throttle control levers operate at minimum power (0 degree).
C. Put a WARNING NOTICE(S) on the slats and flaps control levers to prevent use of them.
Subtask 78-32-11-010-050-A ** ON A/C NOT FOR ALL D. Get Access
(1) Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 1M(3 FT) in position.
Subtask 78-32-11-040-050-A ** ON A/C NOT FOR ALL Subtask 78-32-11-010-060-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 1M(3 FT) in position.
F. Open the thrust reverser doors: (Ref. AMM TASK 78-36-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 78-32-11-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the One or Eleven O'clock Strut and Strut Bushing from the Left or Right Half Door as follows:
(1) Removal of the one or eleven o'clock strut bushing:
(a) Remove and keep the screws (10) (2 positions) and the nuts (20) (2 positions).
PRE SB RA32078-72
(b) Remove the pin (30) and the bushing (40).
END OF PRE SB RA32078-72
POST SB RA32078-72
(c) Remove the pin assembly (31) from the strut (70).
END OF POST SB RA32078-72
(2) Removal of the one or eleven o'clock strut:
(a) Find the access door (50) on the pit sidewall of the 12 o'clock cut corner.
(b) Removal of the access door:
2 Remove and keep the access door (50).
(c) Remove the bead of sealant (Material No.CP2243) around the strut (70) and its angle fittings.
(d) Use an ink pen to draw the outline of the strut and its angle fittings on the 12 o'clock inner cut corner.
(e) Remove and keep the screws (80) (4 positions), the screws (90) (4 positions), the nuts (100) (8 positions).
(f) Removal of the strut:
Subtask 78-32-11-110-051-A ** ON A/C NOT FOR ALL (1) Removal of the one or eleven o'clock strut bushing:
(a) Remove and keep the screws (10) (2 positions) and the nuts (20) (2 positions).
PRE SB RA32078-72
(b) Remove the pin (30) and the bushing (40).
END OF PRE SB RA32078-72
POST SB RA32078-72
(c) Remove the pin assembly (31) from the strut (70).
END OF POST SB RA32078-72
(2) Removal of the one or eleven o'clock strut:
(a) Find the access door (50) on the pit sidewall of the 12 o'clock cut corner.
(b) Removal of the access door:
CAUTION:
BE CAREFUL NOT TO CAUSE DAMAGE TO THE ATTACHING PARTS IF YOU USE A CUTTING BLADE.
1 Remove and keep the screws (60) (5 positions). 2 Remove and keep the access door (50).
(c) Remove the bead of sealant (Material No.CP2243) around the strut (70) and its angle fittings.
(d) Use an ink pen to draw the outline of the strut and its angle fittings on the 12 o'clock inner cut corner.
(e) Remove and keep the screws (80) (4 positions), the screws (90) (4 positions), the nuts (100) (8 positions).
(f) Removal of the strut:
CAUTION:
BE CAREFUL NOT TO CAUSE DAMAGE TO THE INNER AND OUTER COWLS WHEN YOU REMOVE THE STRUT.
1 Push the strut (70) to the aft side. Set the strut to a slope position and remove the strut. B. Cleaning
(1) Cleaning of the areas:
(2) Dry the areas with a clean cloth.
(1) Cleaning of the areas:
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Clean the areas where you removed the sealant with acetone (Material No.CP1039) or stoddard solvent (Material No.CP2011) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or mag-chem skysol (Material No.CP2656) or isopropyl alcohol (Material No.CP1041) . (2) Dry the areas with a clean cloth.
Replacement of the One or Eleven O'clock Strut and Strut Bushing