ENGINE-continued

TM 9-2835-255-34

3-2. TROUBLESHOOTING

- CONTINUED

(1) ES-17. ENGINE FAULTY

d. ENGINE - CONTlNUED

This section contains engine troubleshooting procedures in the event that the Organizational level of mainte-

nance has concluded their diagnostic efforts with the message "Engine Faulty, Notify Direct Support Mainte-

nance". If a specific symptom has not been provided by Organizational Maintenance, a Rapid Functional As-

sessment (RFA) of the engine must be performed using the computerized Turbine Engine Diagnostics (TED)

program included with the Ground Hop Support Set (GHSS). Performing the RFA will enable the mechanic to

identify a symptom that can be diagnosed using an Engine Symptom (ES) on page 3-9 that more accurately

defines the engine's condition.

If results of the RFA indicate that the engine can be operated, then further diagnosis of the engine using TED

and the GHSS should continue until a definite symptom can be identified and corrected or all evidence leads

back to this procedure.

The troubleshooting procedure that follows has been created to accommodate an engine identified with any

of the following symptoms:

Details

Symptom

Reported by ORG Level as less than 60% during "Health Check".

Low Power

60 second abort with T7 temperature limited to approx. 1200 F.

Aborted Start

Engine aborts when NBC system activated or turret slewed.

Abort During Operation

Disassembly inspection of the engine and modules is required to isolate the fault and determine corrective

action(s). The art on the following page provides an overview of the engine. Refer to this page along with

in-text art while performing troubleshooting.

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