What was found
NR 4 ENGINE SHUT DOWN DUE TO BACK FIRING AT CRUISE POWER, AUTO RICH. REPLACED NR 6 CYLINDER SPARK PLUGS. CHECKED GOOD.
- Difficulty date
- August 9, 2003
- Submitted
- August 11, 2003
- Operation
- Air carrier
- Aircraft
- N2907F
- Make and model
- Doug DC6
- Aircraft serial
- 533265
- Engine
- Pwa R2800CB3
- Engine time
- 34,930 hours
- System (JASC)
- 7421 · Spark Plug/Igniter
- Part
- Spark Plug
- Part number
- URHB32E
- Condition
- Cracked
- Location
- Nr 4 Engine
- Part time
- 480 hours
- 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.