Removal of the Forward Crossover Beam (Fan and T/R Cowls Removed) [IAE]
TASK 78-30-10-000-010-A
Removal of the Forward Crossover Beam (Fan and T/R Cowls Removed)
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 78-30-10-941-052-A ** ON A/C NOT FOR ALL
Subtask 78-30-10-020-054-B ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:27:19 UTC
Removal of the Forward Crossover Beam (Fan and T/R Cowls Removed)
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 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-00-20-000-040-A | Removal of the Power Plant |
| TASK 71-00-20-000-040-A-01 | Removal of the Power Plant with the Engine Positioner TWW 75E (MIAG) |
| TASK 71-13-11-000-010-A | Removal of the Left Fan Cowl 437AL(447AL). |
| TASK 71-13-16-000-010-B | Removal of the Right Fan Cowl (438AR, 448AR) |
| TASK 78-32-01-000-010-A | Removal of the Left Thrust Reverser Half - Eng No. 1 |
| TASK 78-32-02-000-010-A | Removal of the Left Thrust Reverser Half - Eng No. 2 |
| TASK 78-32-03-000-010-A | Removal of the Right Thrust Reverser Half - Eng No. 1 |
| TASK 78-32-04-000-010-A | Removal of the Right Thrust Reverser Half - Eng. No. 2 |
Subtask 78-30-10-941-052-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).
4. Procedure(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 78-30-10-020-054-B ** ON A/C NOT FOR ALL
A. Remove the left and right fan cowl doors (Ref. AMM TASK 71-13-11-000-010) and (Ref. AMM TASK 71-13-16-000-010).
Subtask 78-30-10-020-055-A ** ON A/C NOT FOR ALL B. Remove the left and right thrust reverser halves (Ref. AMM TASK 78-32-01-000-010), (Ref. AMM TASK 78-32-02-000-010), (Ref. AMM TASK 78-32-03-000-010) and (Ref. AMM TASK 78-32-04-000-010).
Subtask 78-30-10-020-056-A ** ON A/C NOT FOR ALL Subtask 78-30-10-020-057-A ** ON A/C NOT FOR ALL D. Remove the forward crossover beam.
(1) Remove the cotter pin (1), the nut (2), the washer (3), the bolt (4) and the spacer (5) on the left and right side of the crossover beam.
(2) Remove the forward crossover beam.
(1) Remove the cotter pin (1), the nut (2), the washer (3), the bolt (4) and the spacer (5) on the left and right side of the crossover beam.
(2) Remove the forward crossover beam.
Forward Crossover Beam