TM 55-2840-231-23
Table 1-8. Sympton Index (METS)
Troubleshooting
Procedure
ANTI-ICING SYSTEM
Lack of Anti-Icing Air
ENGINE
Afterfire
Acceleration Temperature Too High During Start
Acceleration Temperature Too Low During Starting
Compressor Rear Bearing Labyrinth Seal Vent Smoking
Continuous Exhaust Smoking
Engine Fails to Light Off - Fuel Vapor Coming Out of Exhaust and No Audible
39
47
7
8
41
40
Ignition Operation
Engine Fails To Light Off - No Fuel Vapor Coming Out Of Exhaust
Engine Fails to Light Off - Vapor Coming Out of Exhaust and Ignition
Audible
Engine Fails to Reach Light Off Cranking Speed
2
4
Operation
3
1
Engine Lights Off But Will Not Accelerate to Ground Idle Speed Due to Lack
of Secondary Fuel
Engine Lights Off But Will Not Accelerate to Idle Speed in 45 Seconds
Engine N1 Overspeed Above Maximum Limits
Engine N2 Overspeeds
Engine Power Reset to the Takeoff Setting
Engine Tubing Cracked or Broken At the Flare
Excessive Exhaust Torching During Start and Transients
Excessive Fuel Leaking From Drains or Weep Holes
Exhaust Duct Emitting Sparks
Exhaust Smoking on Shutdown or Engine Start
Faulty Torquemeter Indication
High Health Indicator Test (HIT) Check
5
6
27
28
33
56
29
37
44
42
38
59
Change 11
1-67
