# SDR UIEA9905

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N526MC
- Make and model: Boeing 747-2D7B
- Registry model: [Boeing 747-2D7B](https://openairdocs.org/model/boeing-747-2d7b) (OpenAirDocs)
- Aircraft serial: 22337
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Pdu
- Part number: 126344151
- Condition: Defective
- Location: Rt Te Flap
- Stage of operation: CL
- Nature of condition: F
- Precautionary procedure: A, J
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA9905

## Discrepancy

FLT 1358 - ANC/LAX - ATB - AFTER TAKEOFF, DURING FLAP RETRACTION, RIGHT NR 1 LEADING EDGE FLAP WOULD NOT RETRACT.  TRIED TO USE ALT SYSTEM BUT LE FLAP DRIVE C/B TRIPPED.  RESET CIRCUIT BREAKER AND TRIED AGAIN BUT NOT HELP.  DUMPED 6,000 KILOS OF FUEL AND RETURNED TO ANC.  FOUND RIGHT NR 1 LE FLAP POWER DRIVE UNIT, P/N 126344-15-1 DEFECTIVE.  REPLACED PDU AND OPERATION NOW NORMAL.  (M)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.