# SDR DALA2017080105891

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2017
- Submitted: August 3, 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 1460-1480
- 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/DALA2017080105891

## Discrepancy

AFT CARGO FLOOR SUPPORT CHANNEL AT LBL 3 BETWEEN BS 1460 AND 1480 HAS CORROSION AT FASTENER HOLES.  BLENDED CORROSION IAW SRM 51-10-02.  THE FLOOR SUPPORT WAS OUT OF LIMITS IAW SRM 53-00-53.  REMOVED AND REPLACED THE FLOOR SUPPORT IAW SRM 51-40-02 AND AMM 54-88-01-801.

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