Detailed Inspection of Disassembled Forward Engine Mount Installation including Mating Surfaces [IAE]

TASK 71-21-12-200-013-A
Detailed Inspection of Disassembled Forward Engine Mount Installation including Mating Surfaces

CAUTION: DO NOT APPLY TEMPORARY PROTECTION SYSTEM (TPS) ON THE INSPECTION AREA. IF YOU APPLY TPS ON THE INSPECTION AREA, YOU CAN CAUSE DAMAGE TO THE AIRCRAFT.

ZONE: 400

1. Reason for the Job
Refer to the MPD TASK: 712111-04
DETAILED INSPECTION OF DISASSEMBLED FORWARD ENGINE MOUNT INSTALLATION INCLUDING MATING SURFACES.
2. Job Set-up Information
A. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS

C. Referenced Information

REFERENCE	DESIGNATION
TASK 51-78-00-916-001-A	Application of Temporary Protection System (TPS)
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 71-00-20-400-040-A	Installation of the Power Plant
TASK 71-00-20-400-040-A-01	Installation of the Power Plant with the Engine Positioner TWW 75E (MIAG)
TASK 71-21-12-000-011-A	Removal of the Forward Engine Mount
TASK 71-21-12-400-011-A	Installation of the Forward Engine Mount

3. Job Set-up
Subtask 71-21-12-010-059-A ** ON A/C NOT FOR ALL

A. Remove the engine (Ref. AMM TASK 71-00-20-000-040).

Subtask 71-21-12-010-067-A ** ON A/C NOT FOR ALL

B. Remove the forward engine mount (Ref. AMM TASK 71-21-12-000-011).

Subtask 71-21-12-840-050-A ** ON A/C NOT FOR ALL

C. Preparation of the Inspection Area
(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) If not, clean the inspection area with a Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Make sure that there is no TPS layer. If there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).

4. Procedure
Subtask 71-21-12-220-051-A ** ON A/C NOT FOR ALL

A. Send the engine mount to the workshop for detailed inspection.

5. Close-up
Subtask 71-21-12-410-068-A ** ON A/C NOT FOR ALL

A. Install the forward engine mount (Ref. AMM TASK 71-21-12-400-011).

Subtask 71-21-12-410-058-A ** ON A/C NOT FOR ALL

B. Install the engine (Ref. AMM TASK 71-00-20-400-040)

Subtask 71-21-12-869-050-A ** ON A/C NOT FOR ALL

C. Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 02:30:20 UTC