Troubleshoot the Engine after a Fuel Leak from Drain Mast event

TASK 71-00-00-810-889-A
Troubleshoot the Engine after a Fuel Leak from Drain Mast event

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 71-00-00-910-803	Engine Operation Limits and Guidelines
AMM 71-71-00-00-
AMM 73-11-00-210-804	General Visual Inspection (GVI) of the Fuel Distribution System

3. Fault Confirmation
Subtask 71-00-00-710-148-A ** ON A/C NOT FOR ALL

A. Investigate The Engine After a Fuel Leak from Drain Mast event
(1) Use this troubleshooting procedure to investigate the engine after a fuel leak from drain mast event.

4. Fault Isolation

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 WARNING, INJURY CAN OCCUR.

WARNING: REFER TO THE MSDS FOR ALL MATERIAL USED AND THE MANUFACTURER'S SAFETY INSTRUCTIONS FOR ALL EQUIPMENT USED. IF YOU DO NOT OBEY THIS WARNING, INJURY CAN OCCUR.

Subtask 71-00-00-810-156-A ** ON A/C NOT FOR ALL

A. Do the steps that follow:
(1) If there is fuel leakage evident from the drain mast, identify the specific drain line location AMM 71-71-00-00-.
(2) Measure the individual leakage quantities and compare to fuel leakage limits AMM 71-00-00-910-803.
(3) If the fuel leakage rate is less than the maximum serviceable limit, no maintenance action is required.
(4) If the fuel leakage rate is more than the maximum serviceable limit, determine the cause for the leakage and repair as necessary.
(5) If you do not find the cause of the fuel leakage, do a visual inspection of the engine fuel system AMM 73-11-00-210-804.

5. Close-up
Subtask 71-00-00-860-103-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.

[Rev.8 from Aug 2018] 2026.04.04 04:35:07 UTC