# SDR DALA2017021401220

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2017
- Submitted: February 14, 2017
- Operation: Air carrier
- Aircraft: [N718TW](https://openairdocs.org/aircraft/N718TW), registered now
- Make and model: Boeing 757231
- Aircraft serial: 28486
- Aircraft time: 64,302 hours, 17,564 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017021401220

## Discrepancy

MAIN CABIN L4 DOOR UPPER AFT SILL SUPPORT HAS CORROSION STA 1680 LBL60. REMOVE AND REPLACED MAIN CABIN L-4 DOOR UPPER AFT SILL SUPPORT STA 1680 LBL 60 PN 146N8016U1 IAW SRM 51-40-02 AND DRW 146N8722 REV B AD BK.

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