# SDR DALA2016071405320

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2016
- Submitted: July 15, 2016
- Operation: Air carrier
- Aircraft: [N661DN](https://openairdocs.org/aircraft/N661DN), registered now
- Make and model: Boeing 757232
- Aircraft serial: 24972
- Aircraft time: 80,676 hours, 36,767 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Fitting
- Condition: Corroded
- Location: Bs 1657
- 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/DALA2016071405320

## Discrepancy

AFT CABIN L4 DOOR AREA, UPPER SILL HAS CORROSION ON MOUNTING STRUCTURE, BS 1657, LBL 63.  FOUND TO BE OUT OF LIMITS.  LOCATED, DRILLED NEW FITTING AND INSTALLED.

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