# SDR DALA2016042603312

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2016
- Submitted: April 26, 2016
- Operation: Air carrier
- Aircraft: [N900PC](https://openairdocs.org/aircraft/N900PC), registered now
- Make and model: Boeing 757-26D
- Registry model: [Boeing 757-26D](https://openairdocs.org/model/boeing-757-26d) (OpenAirDocs)
- Aircraft serial: 28446
- Aircraft time: 60,241 hours, 25,845 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Ball Screw
- Condition: Corroded
- Location: Rt Wing Te Flap
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2016042603312

## Discrepancy

RT WING, OTBD FLAP, INBD BALLSCREW HAS CORROSION PITTING AROUND THE BALLNUT PINS. REMOVED RT OTBD FLAP NR 7 BALLSCREW IAW AMM  27-51-21. PROCURED RT WING OTBD FLAP INBD BALLSCREW FROM STOCK WILL BE INSTALLED ON T/C 2751-2542.

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