What was found
NR 4 ENGINE SHUTDOWN DUE TO FIRE WARNING INDICATION. FIRE EXTINGUISHED AND AIRCRAFT LANDED WITHOUT INCIDENT. NR 9 CYL WALL RUPTURED DUE TO BROKEN MASTER ROD CAUSING AN OIL FIRE. ENGINE QEC ASSEMBLY REPLACED NO DAMAGE TO THE AIRFRAME.
- Difficulty date
- September 21, 2011
- Submitted
- September 26, 2011
- Operation
- Air carrier
- Aircraft
- N6174C
- Make and model
- Doug DC6A
- Aircraft serial
- 44075
- Aircraft time
- 55,492 hours
- Engine
- Pwa R2800CB3
- Engine time
- 23,732 hours
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Master Rod
- Part number
- 143126
- Condition
- Broken
- Location
- Nr 4 Engine
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- A
- Precautionary procedure
- E, F
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.