# SDR SWAA2023011984320

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2022
- Submitted: January 19, 2023
- Operation: Air carrier
- Aircraft: [N272WN](https://openairdocs.org/aircraft/N272WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32527
- Aircraft time: 52,973 hours, 31,748 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Threshold
- Condition: Corroded
- Location: Fwd Cargo
- 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/SWAA2023011984320

## Discrepancy

FWD CARGO SUBTHRESHOLD CORRO, BS 459 - 461, RBL 30, WL 156.   REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 53-30-15-1A-1.   LOCATED, DRILLED, & COUNTERSUNK A NEW FWD CARGO THRESHOLD WEB IAW SRM 51-40-05-0G-0,  SRM 51-40-08-0G-0,  & DWG 143A8122, REV-.   INSTALLED NUTPLATES IAW SRM 51-40-02-0G-0, AND DWG 143A8331, REV A.

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