What was found
FOUND NR 4 ENG LT FAN COWL UPPER TRAILING SIDE HAS CRACKS 2 IN SURFACE AND 7 IN BACK. REPLACED NR 4 ENG LT FAN COWL PER AMM 71-11.
- Difficulty date
- February 6, 2017
- Submitted
- February 7, 2017
- Operation
- Air carrier
- Aircraft
- N667US
- Make and model
- Boeing 747451
- Aircraft serial
- 24222
- Aircraft time
- 113,235 hours, 13,788 cycles
- System (JASC)
- 7110 · Engine Cowling System
- Part
- Cowling
- Condition
- Cracked
- Location
- Nr 4 Engine
- 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.