What was found
NR 4 ENG AFT MOUNT CORROSION. IAW AMM 71-21-02-004-001 REV 88 REMOVED NR 4 ENG AFT LOWER ENG MOUNT ASST. IAW AMM 71-21-02-404-008 REV 89 INSTALLED NR 4 ENG AFT LOWER ENG MOUNT ASSY. CONDITION CHECK NORMAL.
- Difficulty date
- May 1, 2017
- Submitted
- May 2, 2017
- Operation
- Air carrier
- Aircraft
- N249BA
- Make and model
- Boeing 747409
- Aircraft serial
- 24309
- Aircraft time
- 77,286 hours, 15,105 cycles
- System (JASC)
- 7120 · Engine Mount Section
- Part
- Mount
- Part number
- 310U40206
- Condition
- Corroded
- 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.