Removal of the Diagonal Support Struts at FR77
TASK 53-53-11-000-002-A
Removal of the Diagonal Support Struts at FR77
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 53-53-11-010-051-A
Subtask 53-53-11-020-051-A
[Rev.10 from 2021]
2026.04.01 01:58:18 UTC
Removal of the Diagonal Support Struts at FR77
NOTE: The removal of one support strut is given. The procedure is the same for the other support struts.
1. Reason for the JobSelf Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | 1 | ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | 1 | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 312AR, 314AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-41-00-220-003-A | Check of the Zero Adjustment of the THS |
| TASK 29-10-00-864-001-A | Depressurize the Green Hydraulic System |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-10-00-864-003-A | Depressurize the Blue Hydraulic System |
| TASK 52-41-23-010-801-A | Opening of Access Door 314AR |
| TASK 53-55-13-000-001-A | Removal of the Fairings at the THS Fittings. |
| TASK 55-15-11-000-001-A | Removal of the Apron 333AT/333AB/343AT/343AB |
Subtask 53-53-11-010-051-A
A. Get Access
(1) Make sure that the Trimmable Horizontal Stabilizer (THS) is in the zero position (Ref. AMM TASK 27-41-00-220-003).
(2) Put the WARNING NOTICE(S) in position to tell persons not to operate the flight controls.
(3) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below zone 312.
(4) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position below zone 314.
(5) Open access door 312AR.
(6) Open access door 314AR (Ref. AMM TASK 52-41-23-010-801).
(7) Remove the THS aprons (Ref. AMM TASK 55-15-11-000-001).
(8) Remove the THS fairings (Ref. AMM TASK 53-55-13-000-001).
Subtask 53-53-11-864-050-A (1) Make sure that the Trimmable Horizontal Stabilizer (THS) is in the zero position (Ref. AMM TASK 27-41-00-220-003).
(2) Put the WARNING NOTICE(S) in position to tell persons not to operate the flight controls.
(3) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below zone 312.
(4) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position below zone 314.
(5) Open access door 312AR.
(6) Open access door 314AR (Ref. AMM TASK 52-41-23-010-801).
(7) Remove the THS aprons (Ref. AMM TASK 55-15-11-000-001).
(8) Remove the THS fairings (Ref. AMM TASK 53-55-13-000-001).
B. Depressurize the Blue, Green and Yellow hydraulic systems (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002) and (Ref. AMM TASK 29-10-00-864-003).
Subtask 53-53-11-865-053-A C. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/FCDC1/SPLY | 20CE1 | B10 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/FCDC1/SPLY | 20CE1 | B05 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | FLIGHT CONTROLS/FCDC2/SPLY | 20CE2 | Q20 |
| 121VU | FLIGHT CONTROLS/SEC3/SPLY | 21CE3 | Q19 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
Subtask 53-53-11-020-051-A
A. Removal:
(1) Remove the nuts (9), the washers (7) and the screws (6).
(2) Remove the bonding straps (8) and (10).
(3) Remove and discard the cotter pins (4).
(4) Remove the nuts (3) and the washers (2).
(5) Identify each support strut (5).
(6) Remove the bolts (1).
(7) Remove the support struts (5).
(1) Remove the nuts (9), the washers (7) and the screws (6).
(2) Remove the bonding straps (8) and (10).
(3) Remove and discard the cotter pins (4).
(4) Remove the nuts (3) and the washers (2).
(5) Identify each support strut (5).
(6) Remove the bolts (1).
(7) Remove the support struts (5).
Diagonal Support Struts