# SDR F3LA200100019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2001
- Submitted: February 19, 2001
- Operation: Air carrier
- Aircraft: [N311FL](https://openairdocs.org/aircraft/N311FL), registered now
- Make and model: Boeing 737-3S1
- Registry model: [Boeing 737-3S1](https://openairdocs.org/model/boeing-737-3s1) (OpenAirDocs)
- Aircraft serial: 24856
- Aircraft time: 31,627 hours, 19,875 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Aft 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/F3LA200100019

## Discrepancy

DURING C-4 CHECK, INSPECTION REPORTED CORROSION ON AFT FUSELAGE FLOOR SUPPORT, 2 INCHES FROM LT CENTER LINE 0, BETWEEN STA 986.5 AND 967.  MAINTENANCE INSTALLED WEB BETWEEN STA 986.5 AND 967 PER SRM 51-10-2 AND REPLACED FLOORBEAM CAP AT STA 967 PER SRM 53-00-51.

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