TM 55-1905-219-14-3
Table 3-1. Propulsion Engine - Exhaust Smoke Analysis -
Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Black or grey smoke observed:
Step 1. Check for high exhaust back pressure which is caused by faulty exhaust piping or muffler
obstruction.
Refer to Direct Support Maintenance.
3-17
