# SDR SWAA2021031655124

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2021
- Submitted: March 16, 2021
- Operation: Air carrier
- Aircraft: [N7746C](https://openairdocs.org/aircraft/N7746C), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33934
- Aircraft time: 44,891 hours, 23,333 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Cracked
- Location: Rt Mlg Ww
- 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/SWAA2021031655124

## Discrepancy

MOD TYPE: 6 NBR: 43277 REV: POS: RIGHT MLG WHEEL WELL VAPOR BARRIER AT APPROX. RBL 45.64 LOWER STIFFENERFOR OUTER MAIN KEEL BEAM; IS CRACKED AND EXTENDING UPWARD AND IB 3.6'. FOUND CRACK TO EXTEND 2' PAST STOP DRILL TO A LENGTH OF 5.6' / FACT AS A RESULT OF POST REPAIR INSPECTION

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