What was found
NR 3 ENGINE SHUT DOWN AT CRUISE FLIGHT DUE TO BACKFIRE. REPLACED NR 11 CYLINDER DUE TO EXHAUST VALVE SEAT FAILURE. PER REF: NAC DC-6MM SEC V PG 16 & 16A.
- Difficulty date
- March 27, 2006
- Submitted
- April 13, 2006
- Operation
- Air carrier
- Aircraft
- N99330
- Make and model
- Doug DC6A
- Aircraft serial
- 43576
- Aircraft time
- 31,827 hours
- Engine
- Pwa R2800CB3
- Engine time
- 922 hours
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Valve Seat
- Part number
- 356996
- Part serial
- 1930OJMK
- Condition
- Failed
- Location
- Nr 3 Engine
- Part time
- 922 hours
- Component
- Engine · Pwa · CB3
- Component part number
- R2800
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- R
- Precautionary procedure
- E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.