# SDR DALA2017072505750

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2017
- Submitted: July 28, 2017
- Operation: Air carrier
- Aircraft: [N669DN](https://openairdocs.org/aircraft/N669DN), registered now
- Make and model: Boeing 757232
- Aircraft serial: 25142
- Aircraft time: 83,092 hours, 38,081 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Bs 1640-1660
- 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/DALA2017072505750

## Discrepancy

CABIN FLOOR STRUCTURE, U CHANNEL BETWEEN STATIONS 1640-1660 AT BL 0 CORRODED.  BLENDED CORROSION IAW SRM 51-10-02, PG 12, PAR 15. MEASURED AND VERIFIED LIMITS IAW SRM 53-00-51, DETAIL  III.  OUT OF ALLOWABLE LIMITS. REMOVED AND REPLACED FLOOR SUPPORT IAW SRM 51-40-02, PG 2, PAR 4, AND  DWG 146N5230, REV -.

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