What was found
PRECAUTIONARY SHUT DOWN NR 2 ENGINE, DUE TO BACKFIRING. NR 16 CYLINDER LEFT A LONG RESISTANCE PATTERN, RIGHT SHORTED SECONDARY. INSPECTED THE NR 16 CYLINDER, REPLACED LEFT AND RIGHT SPARK PLUGS AND SHORT LEADS.
- Difficulty date
- March 11, 2002
- Submitted
- March 12, 2002
- Operation
- Air carrier
- Aircraft
- N7780B
- Make and model
- Doug DC6A
- Aircraft serial
- 45372
- Aircraft time
- 21,684 hours
- Engine
- Pwa R2800*
- Engine time
- 1,361 hours
- System (JASC)
- 7421 · Spark Plug/Igniter
- Part
- Spark Plug
- Part number
- RHB32E
- Condition
- Shorted
- Location
- Nr 2 Engine
- Part time
- 359 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.