# SDR 99UAL900545

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N7251U
- Make and model: Boeing 727222
- Aircraft serial: 21398
- Engine: Pwa JT8D15
- System (JASC): [2782 · Leading Edge Slat Actuator](https://openairdocs.org/jasc/2782)
- Part: Actuator
- Part number: 656021211
- Condition: Failed
- Location: Le Flaps
- 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/99UAL900545

## Discrepancy

SLATS NR 2, 3, 6  AND 7 WOULD NOT RETRACT WHEN FLAP 2 DEGREES SELECTED FROM 5 DEGREES.  NR 4 SLAT TRANSITION LIGHT DID NOT ILLUMINATE DURING RETRACTION.  RETURNED TO ORD.  *S/D*  REPLACED LEADING EDGE POSITION CONTROL UNIT, OPERATIONAL CHECK NORMAL.

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