What was found
PRECAUTIONARY SHUT DOWN THE NR 4 ENGINE IN CRUISE DUE TO SHORTED SECONDARY ON THE NR 11 CYLINDER. FOUND CRACKED NOSE CERAMICS ON BOTH PLUGS. REMOVED AND REPLACED PLUGS.
- Difficulty date
- July 15, 2002
- Submitted
- July 16, 2002
- Operation
- Air carrier
- Aircraft
- N43872
- Make and model
- Doug DC6
- Aircraft serial
- 533294
- Aircraft time
- 33,554 hours
- Engine
- Pwa R2800*
- Engine time
- 1,339 hours
- System (JASC)
- 7421 · Spark Plug/Igniter
- Part
- Spark Plug
- Part number
- URHB32E
- Condition
- Cracked
- Location
- Nr 4 Engine
- Part time
- 396 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.