# SDR DALA2016070705182

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2016
- Submitted: July 8, 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: Structure
- Condition: Corroded
- Location: Bs 1665
- 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/DALA2016070705182

## Discrepancy

AFT CABIN L4 DOOR UPPER SILL MOUNTING PLATE IS CORRODED, BS 1665, LBL 63.  REMOVED CORROSION AND FOUND AREA TO BE OUT OF LIMITS WITH 100 % MATERIAL LOSS IAW SRM 51-10-02 & 53-60-15.  REMOVED SUPPORT IAW SRM  51-40-02. LOCATED AND DRILLED NEW FITTING SUPPORT IAW SRM 51-40-05 AND DWG  146N8722 REV N.  INSTALLED A NEW SUPPORT IAW SRM 51-40-02 & DWG 146N8722.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.