# SDR UIEA2025031300281

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2025
- Submitted: March 18, 2025
- Operation: Air carrier
- Aircraft: [N851GT](https://openairdocs.org/aircraft/N851GT), registered now
- Make and model: Boeing 747-87UF
- Registry model: [Boeing 747-87UF](https://openairdocs.org/model/boeing-747-87uf) (OpenAirDocs)
- Aircraft serial: 37565
- Aircraft time: 54,575 hours, 8,508 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Pdu
- Part number: 10782
- Part serial: 1267629
- Condition: Faulted
- Location: Te Flaps
- Stage of operation: CL
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025031300281

## Discrepancy

FLAPS DRIVE CAUTION MSG.(<P>REMOVE & REPLACE #4 PDU FEEDBACK SWITCH ASSY PER AMM 27-88-01. REMOVED AND REPLACED #4L PDU PER AMM 27-81-03 APC 27-81-03-51. OPS CHECK GOOD. NO MESSAGES OR FAULTS NOTED.</P>)

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