General Visual Inspection (GVI) of the Engine Starting System [PW11]

TASK 80-11-00-210-801-A
General Visual Inspection (GVI) of the Engine Starting System

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

1. Reason for the Job
This procedure gives the instructions to do a general visual inspection of the engine starting system.
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 462AR

B. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-832-A	Procedure to Prevent Engine Motoring and to Stop the Electrical Supply to the EEC
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 73-25-34-400-802-A	Installation of the Engine Interface Unit (EIU)
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
TASK 80-11-01-000-801-A	Removal of the Starter
TASK 80-11-01-400-801-A	Installation of the Starter
TASK 80-11-49-000-802-A	Removal of the Lower Starter Air Duct
TASK 80-11-49-400-802-A	Installation of the Lower Starter Air Duct
General Visual Inspection of the Engine Starting System

3. Job Set-up
Subtask 80-11-00-941-060-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832).

Subtask 80-11-00-010-058-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.

Subtask 80-11-00-040-052-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser for Ground Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Do the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 80-11-00-010-059-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the right thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
452AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR.

4. Procedure
Subtask 80-11-00-210-057-A ** ON A/C NOT FOR ALL

A. General Visual Inspection of the Engine Starting System
(1) Visually inspect the engine starting system components for damage and correct installation.

General Visual Inspection of the Engine Starting System ** ON A/C NOT FOR ALL

(2) The engine starting system components include the following:
(a) Starter,
(b) Starter air control valve,
(c) Brackets and clamps,
(d) Starter air ducts (upper and lower).
(3) For the permitted service damage limits or disposition for damage seen, refer to the Table 1.

EXAMINE	DAMAGE	DISPOSITION
Starter ducts (upper and lower) for:
Looseness or incorrect assembly	Any amount.	Not permitted. Tighten or reassemble as necessary (Ref. AMM TASK 80-11-49-400-802).
Round bottom dents	Dents 0.050 in. (1.27 mm) depth or less, or more than ten times the depth across and three inches or more to the nearest edge of a different dent.	Permitted.
	Dents more than 0.050 in. (1.27 mm) depth or less than ten times the depth across.	Not permitted. Replace the duct (Ref. AMM TASK 80-11-49-000-802) and (Ref. AMM TASK 80-11-49-400-802).
Nicks or scratches	Up to 0.025 in. (0.63 mm) depth or less.	Permitted.
	More than 0.025 in. (0.63 mm) depth.	Not permitted. Replace the duct (Ref. AMM TASK 80-11-49-000-802) and (Ref. AMM TASK 80-11-49-400-802).
Cracks	Any amount.	Not permitted. Replace the duct (Ref. AMM TASK 80-11-49-000-802) and (Ref. AMM TASK 80-11-49-400-802).
Starter duct attachment clamps and support brackets for:
Looseness or incorrect assembly	Any amount.	Not permitted. Tighten or reassemble as necessary.
Starter for:
Looseness or incorrect assembly	Any amount.	Not permitted. Tighten or reassemble as necessary.
Oil leakage from the starter mounting pad or exhaust baffles	Any amount.	Not permitted. Replace the starter and interface packing (Ref. AMM TASK 80-11-01-000-801) and (Ref. AMM TASK 80-11-01-400-801).
Nicks, dents or scratches	Up to 0.025 in. (0.63 mm) depth or less.	Permitted.
	More than 0.025 in. (0.63 mm) depth.	Not permitted. Replace the starter (Ref. AMM TASK 80-11-01-000-801) and (Ref. AMM TASK 80-11-01-400-801).
Cracks	Any amount.	Not permitted. Replace the starter (Ref. AMM TASK 80-11-01-000-801) and (Ref. AMM TASK 80-11-01-400-801).
Starter air control valve for:
Looseness or incorrect assembly	Any amount.	Not permitted. Tighten or reassemble as necessary.
Starter air control valve cooling tube for:
Cracks	Any amount.	Not permitted. Replace the SVA.
Nicks, scratches, chaffing or pitting	Any quantity less than 0.003 in. (0.08 mm) depth.	Permitted.
Dents	Up to 0.025 in. (0.63 mm) depth or less.	Permitted.
Starter air control valve cooling shroud for:
Cracks	Any amount.	Not permitted. Replace the shroud.
Nicks, dents or scratches	Up to 0.025 in. (0.63 mm) depth or less.	Permitted.
	More than 0.025 in. (0.63 mm) depth.	Not permitted. Replace the shroud.
Starter air control valve electrical connection for:
Looseness or incorrect assembly	Any amount.	Not permitted. Tighten or reassemble as necessary.
Nicks, dents, scratches or other damage	Up to 0.025 in. (0.63 mm) depth or less.	Permitted.
	More than 0.025 in. (0.63 mm) depth.	Not permitted. Replace the connector.
Cracked or broken areas	Any amount.	Not permitted. Replace the connector.

Table - Inspection of the Engine Starting System Damage Limits

5. Close-up
Subtask 80-11-00-410-058-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the right thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
452AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR.

Subtask 80-11-00-440-051-A ** ON A/C NOT FOR ALL

B. Do the reactivation of the thrust reverser system after ground maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 80-11-00-410-059-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
(2) Remove the WARNING NOTICE(S).
(3) Make sure that all the circuit breakers shown in the paragraph Procedure of the engine interface unit installation are closed. If they are not, close them in the recommended sequence
(Ref. AMM TASK 73-25-34-400-802).

[Rev.10 from 2021] 2026.04.01 13:15:25 UTC