What was found
FLT NR 9013 - RETURNED TO ANC DUE TO BACKFIRING ON TAKEOFF. MAINTENANCE REPLACED NR 3 CYLINDER ASSEMBLY ON NR 3 ENGINE DUE TO DAMAGED INTAKE VALVE AND PISTON. AIRCRAFT RETURNED TO SERVICE. (M)
- Difficulty date
- December 8, 1995
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N4213X
- Make and model
- Doug DC6A
- Aircraft serial
- 44605
- Engine
- Pwa CB3
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Intake Valve
- Part number
- 83477
- Condition
- Stuck Open
- Location
- Nr 3 Engine
- Stage of operation
- TO
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.