# SDR DALA2015102206391

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2015
- Submitted: October 23, 2015
- Operation: Air carrier
- Aircraft: [N717TW](https://openairdocs.org/aircraft/N717TW), registered now
- Make and model: Boeing 757231
- Aircraft serial: 28485
- Aircraft time: 57,617 hours, 15,504 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Ball Screw
- Condition: Corroded
- Location: Lt 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/DALA2015102206391

## Discrepancy

LT INBD T/E FLAP BALLSCREW CORROSION FOUND.  SUMMARY, NR FOR ADDITIONAL INFORMATION 001-0067:2751-2539-LT/001 00195.  REPLACED BALLSCREW ASSY IAW AMM 27-51-11.  OPS TEST C/W ON R/C 2751-2538, STEP 18.

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