TM 5-1940-277-34
TROUBLESHOOTING PROCEDURES (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
SUDDEN LOSS OF POWER WITH HEAVY BLACK SMOKE
Step 1.
Visually inspect air cleaner for obstruction or clogging. Also inspect air intake slots from aft
cockpit to engine compartment (refer to TM 5-1940-277-20).
a.
Clear any obstructions to air flow. Clean dirty air filter (refer to TM 5-1940-277-20).
b.
Test for faulty turbocharger.
1.
Remove air silencer (refer to TM 5-1940-277-20).
2.
Check for free rotation of turbine wheel.
3.
Repair faulty turbocharger (refer to page 5-231).
c.
If no air obstructions go to step 2.
Step 2.
Test for faulty injector (refer to page 2-261).
a.
Replace injector (refer to TM 5-1940-277-20).
b.
If injector satisfactory contact supervisor.
Change 1
2-5
