# SDR SWAA2022030235488

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2019
- Submitted: March 3, 2022
- Operation: Air carrier
- Aircraft: N404WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27892
- Aircraft time: 61,820 hours, 36,276 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Threshold Web
- Condition: Corroded
- Location: Aft 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/SWAA2022030235488

## Discrepancy

AFT PIT THRESHOLD WEB BETWEEN STA 787 AND 847 RBL 24 CORRODED ON TOP SURFACE / REMOVED CORROSION ON AFT CARGO THRESHOLD WEB STA 787-847 PER SRM 51-10-02-0G-0 ORIGINAL THICKNESS .050' LOSS OF .034' WITH .016' REMAINING BLEND FOUND TO BE OUT OF LIMITS PER SRM 52-60-15-1A-1 REMOVED AND REPLACE -6 THRESHOLD WEB PER SRM 51-40-02-0G-0 AND DWG 146A8340 REV A

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