EGT Redline Exceeded during Air Start

TASK 77-00-00-810-937-A
EGT Redline Exceeded during Air Start

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 71-00-00-810-834-A	General Troubleshooting Guidelines for Additional Troubleshooting Information
TSM TASK 71-00-00-810-835-A	Component and Harness Intermittent Troubleshooting Procedure for Guidance Troubleshooting Intermittent Faults
TSM TASK 71-00-00-810-855-A	Troubleshoot the Engine after an EGT Exceeded Operating Limits event

3. Fault Confirmation
Subtask 77-00-00-710-300-A ** ON A/C NOT FOR ALL

A. Not Applicable

NOTE: The Electronic Engine Control (EEC) has detected the Exhaust Gas Temperature (EGT) has exceeded allowable limits.

Refer to the general troubleshooting guidelines for additional troubleshooting information (Ref. TSM TASK 71-00-00-810-834).
Refer to the component and harness intermittent troubleshooting procedure for guidance troubleshooting intermittent faults (Ref. TSM TASK 71-00-00-810-835).

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 77-00-00-810-263-A ** ON A/C NOT FOR ALL

A. Do the step that follows:
(1) If the maintenance messages related to the engine after an Exhaust Gas Temperature (EGT) exceed allowable limits appear, refer to the observed troubleshooting procedure Troubleshoot the Engine after an Exhaust Gas Temperature (EGT) Exceeded Operating Limits event (Ref. TSM TASK 71-00-00-810-855).

5. Close-up
Subtask 77-00-00-860-113-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 04:37:51 UTC