What was found
NR 4 ENG OUTBOARD CORE COWL TRAILING EDGE IS WORN. NR 4 ENGINE, RT CORE COWL FIRESHIELD WORN. REPLACED CORE COWL.
- Difficulty date
- March 10, 2012
- Submitted
- March 15, 2012
- Operation
- Air carrier
- Aircraft
- N171UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24322
- Aircraft time
- 84,983 hours, 10,100 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 7110 · Engine Cowling System
- Part
- Fireshield
- Condition
- Worn
- Location
- Nr 4 Cowling
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.