# SDR DALA1125525531

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2011
- Submitted: April 13, 2011
- Operation: Air carrier
- Aircraft: N531US
- Make and model: Boeing 757251
- Aircraft serial: 23846
- Aircraft time: 72,678 hours, 29,915 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Bs 433 Lbl 63
- 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/DALA1125525531

## Discrepancy

FLOOR SUPPORT ANGLE AT STA 433-LBL 63 UPPER SURFACE HAS CORROSION, AS MARKED. REMOVED SUPPORT ANGLE IAW SRM 51-40-02.  FABRICATED SUPPORT ANGLE ON STAM TRAVELER T11/878440.  LOCATED AND DRILLED SUPPORT ANGLE IAW SRM 51-490-08. TREATED, PRIMED AND TOP COATED SUPPORT ANGLE IAW SRM 51-20-01, 51-20-10 INSTALLED SUPPORT ANGLE IAW SRM 51-40-02. RETAIN FOR RECORDS.

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.