What was found
NR 3 ENGINE NR 4 CYLINDER DOUBLE SHORTED SECONDARY, BACKFIRING. REPLACED BOTH RIGHT AND LEFT SPARK PLUGS.
- Difficulty date
- April 2, 2002
- Submitted
- April 3, 2002
- Operation
- Air carrier
- Aircraft
- N779TA
- Make and model
- Doug DC6
- Aircraft serial
- 45529
- Aircraft time
- 36,861 hours
- Engine
- Pwa R2800*
- Engine time
- 690 hours
- System (JASC)
- 7421 · Spark Plug/Igniter
- Part
- Spark Plug
- Part number
- URHB32E
- Condition
- Damaged
- Location
- Nr 3 Engine
- Part time
- 336 hours
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- R
- Precautionary procedure
- E, A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.