# SDR SWAA2022030967965

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2019
- Submitted: March 9, 2022
- Operation: Air carrier
- Aircraft: [N570WN](https://openairdocs.org/aircraft/N570WN), registered now
- Make and model: Boeing 737-7CT
- Registry model: [Boeing 737-7CT](https://openairdocs.org/model/boeing-737-7ct) (OpenAirDocs)
- Aircraft serial: 33657
- Aircraft time: 56,123 hours, 27,855 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Main Cabin
- 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/SWAA2022030967965

## Discrepancy

CORROSION ON 986 FLOOR BEAM UPPER TEE CHORD SURFACE RBL 27 TO 43. / BLENDED CORROSION ON BS986 FLOOR BEAM UPPER CHORD RBL 27 TO RBL 43; DEEPEST BLEND AT RBL36 MEASURING 2' X 1.2' X .041' ALL FOUND TO BE OUT OF LIMITS PER SRM 53-70-51-1A-1 REPAIRED PER EA 1-A53-8241 REV 3

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