# SDR SWAA2022032275598

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 18, 2019
- Submitted: May 16, 2022
- Operation: Air carrier
- Aircraft: [N969WN](https://openairdocs.org/aircraft/N969WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 41777
- Aircraft time: 27,175 hours, 16,491 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Strap
- Part number: 146A812814
- Condition: Corroded
- Location: Aft Cargo Thresh
- 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/SWAA2022032275598

## Discrepancy

AFT CARGO STA 794+9 TO 807+14; RBL 23; WL 154; LOWER SILL STRAP HAS CORROSION ON UPPER SURFACE. / REMOVED CORROSION AT AFT CARGO LOWE SILL STRAP IAW 737-700 SRM 51-10-02-06-0 VEIFIED LIMTS AS ORG 'T' .100';LOSS OF .015'; REMAINING .085' IS OUT OF LIMITS IAW 737-700 SRM 53-00-53-1A-2 VERIFIED NEW AFT CARGO LOWER SILL AS P/N:146A8128-14 IAW A-TAG WN6459 AND BOEING DWG 146A8120 REV A. INSTALLED AFT CARGO LOWER SILL IAW B737-700 SRM 51-40-02-0G-0 AND BOEING DWG 146A8120 REV A. A TAG WN6459 PN 146A8128-14.

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