What was found
THE NUMBER 3 ENGINE STARTED BACKFIRING. REPLACED FRONT AND REAR SPARK PLUG ON NUMBER 13 CYLINDER.
- Difficulty date
- September 26, 2002
- Submitted
- October 17, 2002
- Operation
- Air carrier
- Aircraft
- N99330
- Make and model
- Doug DC6A
- Aircraft serial
- 43576
- Aircraft time
- 28,080 hours
- Engine
- Pwa R2800CB3
- Engine time
- 799 hours
- System (JASC)
- 7421 · Spark Plug/Igniter
- Part
- Spark Plug
- Part number
- URHB32E
- Condition
- Malfunctioned
- Location
- Nr 13 Cylinder
- Stage of operation
- CR
- How discovered
- C
- Nature of condition
- R
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.