What was found
DURING "L" CHECK, FOUND CRACK IN NR 4 ENGINE PYLON AFT BULKHEAD RT FRAME WEB AT NAC STA 221.9. REPAIRED PER EA 67-212661.
- Difficulty date
- April 21, 2008
- Submitted
- April 22, 2008
- Operation
- Air carrier
- Aircraft
- N640US
- Make and model
- Boeing 747251F
- Aircraft serial
- 23888
- Aircraft time
- 76,941 hours, 16,579 cycles
- System (JASC)
- 5412 · Nacelle/Pylon, Bulkhead/Firewall
- Part
- Bulkhead
- Condition
- Cracked
- Location
- Nr 4 Pylon
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.