ENGINE COMPRESSOR SURGES (STALLS) (LOUD POPPING NOISE HEARD FROM ENGINE)-continued

TM 9-2835-255-34

3-2. TROUBLESHOOTING - CONTINUED

d. ENGINE - CONTINUED

ES-18. ENGINE COMPRESSOR SURGES

(2)

(STALLS) (LOUD POPPING NOISE HEARD

FROM ENGINE). - CONTINUED

CONTINUED FROM STEP 7

Rotor blades have sharp edges

and can cut you. Use care when

turning compressor rotor.

Slowly turn low pressure

compressor rotor (1) and check

blades (2) for FOD as listed

below:

l Inspect for missing blades (2).

l Inspect blades (2) for severe

distortion or erosion.

Are blades OK?

A. Install low pressure

compressor housing (top

B. Replace forward engine

C. Verify problem is solved.

Inspect IGV unison ring ball joint

(3) for wear.

Is ball joint worn?

CONTINUED ON NEXT PAGE

Change 6

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