# SDR SWAA2022022495951

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2018
- Submitted: February 25, 2022
- Operation: Air carrier
- Aircraft: [N7740A](https://openairdocs.org/aircraft/N7740A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33927
- Aircraft time: 40,577 hours, 21,048 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Corroded
- Location: Fwd Cargo Bay
- 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/SWAA2022022495951

## Discrepancy

FWD CARGO LOWER SILL WEB HAS AREAS OF CORROSION AT BBS 440 TO BS 492 RBL 25. MARKED. / REMOVED CORROSION FROM FWD CARGO SILL WEB IAW SRM 51-10-02-0G-0 PAR 5 USED 10 X GLASS TO VERIFY REMOVAL ORIGINAL T .045 LOSS .006' .039 REMAINING FOUND TO BE OUT OF LIMITS IAW SRM 53-30-15-1A-1 FIG 103 DETAIL D REMOVED AND REPLACED LOWER SILL WEB IAW B 737 DWG # 143A8120 REV A .

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