# SDR SWAA2021122250985

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2021
- Submitted: December 22, 2021
- Operation: Air carrier
- Aircraft: [N910WN](https://openairdocs.org/aircraft/N910WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36618
- Aircraft time: 45,600 hours, 27,244 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Beam
- Condition: Corroded
- Location: Fuselage
- Stage of operation: UK
- 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/SWAA2021122250985

## Discrepancy

CORROSION ON B.S. 270 LATERAL BEAM LBL 10 - RBL 10, WL 207.54. REMOVED CORROSION ON LATERAL BEAM LBL 10-RBL 10. AREAS BLENDED ARE 22' BY .850' ON TOP; 6' BY .850' ON UNDERSIDE LBL 3-RBL3; 7' BY .850'ON UNDERSIDE LBL 3- LBL 10; 4' BY .850' ON UNDERSIDE RBL 3-RBL7, 1' BY .850' ON UNDERSIDE RBL 9-RBL 10 IAW SRM 51-10-02-0G-0.     ACCOMPLISHED HFEC INSPECTION IAW D6-37239 PART 6 51-00-00 PROC 16 AND 53-30-00 PROC 3. NO CRACKS FOUND.  FOUND LATERAL BEAM STA 270 AT LBL 10-RBL 10; WL 207.54 NO APPLICABLE ALLOWABLE DAMAGE,   COMPLETED ALL REPAIR STEPS ON FAULT TTG8Q009RVUD WHERE EA M-21-153-00277 IS ATTACHED.

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