What was found
DURING FLAP RETRACTION - FLAP DRIVE MSG (LE L1 DRIVE FAIL FCU 27674) , CREW DECLARED EMERGENCY ,DUMPED FUEL AND RETURNED TO AIRPORT (LAX) .AFTER T/S SYSTEM , FOUND LE L1 PDU NPEUMATIC DUCT FLANGE DAMAGE.
- Difficulty date
- September 21, 2023
- Submitted
- September 22, 2023
- Operation
- General aviation
- Aircraft
- N904A
- Make and model
- Boeing 747400
- Aircraft serial
- 33097
- Aircraft time
- 64,312 hours, 10,005 cycles
- System (JASC)
- 2750 · Trailing Edge Flap Control System
- Part
- Duct
- Part number
- 65B4095813
- Part serial
- NSN
- Condition
- Damaged
- Location
- Zone 600
- Stage of operation
- CL
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- J, A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.