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Page Title:
ENGINE COMPRESSOR SURGES (STALLS) (LOUD POPPING NOISE HEARD FROM ENGINE)-continued |
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 TM
9-2835-255-34
3-2. TROUBLESHOOTING - CONTINUED
d . E N G I N E - CONTINUED
(2) ES-18 . ENGINE COMPRESSOR SURGES
( S T A L L S ) (LOUD POPPING NOISE
H E A R D FROM ENGINE). - CONTINUED
Tools:
NOTE
General mechanic's tool kit:
Minor surging during start cycle
automotive (SC 5180-90-N26)
is very common and does not
Punch (Item 102, Appendix D)
require troubleshooting as long
as inlet guide vanes (IGVs) and
Supplies:
air bleed valve are properly
Cotter pin (Item
114,
adjusted.
Spring pin (Item
113,
References:
TM 20-1
A.
Remove engine air inlet
screen (TM 20-1).
B.
Check IGVs (1) and first
stage compressor blades (2)
for FOD as listed below:
Inspect for missing
blades (2).
Inspect vanes (1) and
blades (2) for severe
distortion.
A. Replace forward engine
module (page 5-13).
B. Verify problem is
solved.
CONTINUED ON NEXT PAGE
Change 5
3-144
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