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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
B.  Verify  problem  is
solved.
CONTINUED ON NEXT PAGE
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