# SDR 9701536304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N664US
- Make and model: Boeing 747451
- Aircraft serial: 23819
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Pdu
- Part number: 1267625
- Condition: Failed
- Location: Lt Te Flap
- Part time: 26,845 hours
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9701536304

## Discrepancy

DURING CLIMB, THE LEFT INBOARD LEADING EDGE FLAP WOULD NOT RETRACT.  AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT.  REPLACED THE LEFT NR 3 LEADING EDGE FLAP POWER DRIVE UNIT, OPERATIONAL CHECK GOOD.

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