# SDR 9521496717

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N617US](https://openairdocs.org/aircraft/N617US), registered now
- Make and model: Boeing 747251F
- Aircraft serial: 21121
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Pdu
- Part number: 60B8004225
- Condition: Failed
- Location: Nr 4 Le Flap
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A, J
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9521496717

## Discrepancy

HKG-NRT - AFTER TAKEOFF, THE NR 4 LEADING EDGE FLAP FAILED TO RETRACT IN NORMAL AND ALTERNATE.  CREW FOLLOWED COCKPIT OPERATING MANUAL, DUMPED 50,000 LBS OF FUEL AND DIVERTED FLIGHT TO TPE.  REPLACED NR 4 RT L/E PDU AND OPERATIONAL CHECK WAS NORMAL.

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