# SDR SWAA2021031750351

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2021
- Submitted: March 17, 2021
- Operation: Air carrier
- Aircraft: [N8612K](https://openairdocs.org/aircraft/N8612K), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36973
- Aircraft time: 27,620 hours, 12,185 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- 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/SWAA2021031750351

## Discrepancy

FORWARD CARGO COMPARTMENT AT CARGO DOOR OPENING; WEB UNDER THRESHOLD HAS CORROSION (BS 440 TO 480; STR 25R AND WL141) / EVALUATED CORROSION WEB AT FWD CARGO DOOR OPENING UNDER THRESHOLD FOUND 100% MATERIAL LOSS FOUND OUT OF LIMITS I-A-W SRM 51-10-02-0G-0. REMOVED WEB I-A-W SRM 51-40-02-0G-0. DRILLED NEW WEB I-A-W SRM 51-40-05-0G-0 AND BOEING DWG 143A8330. INSTALLED NEW WEB I-A-W SRM 51-40-02-0G-0 AND BOEING DWG 143A8330 P/N 143A81220-10

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