# SDR SWAA2022072524688

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2022
- Submitted: July 25, 2022
- Operation: Air carrier
- Aircraft: [N8641B](https://openairdocs.org/aircraft/N8641B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 60085
- Aircraft time: 27,233 hours, 12,566 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- 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/SWAA2022072524688

## Discrepancy

CORROSION ON FWD CARGO BAY DOOR CUT-OUT SUB-THRESHOLD WEB; STA 440+1 TO STA 480+12; RBL 23 TO RBL 29.5; WL 156. / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 470 REMOVED 0.015' IN A AREA OF 1'X1' ORIGINAL THICKNESS 0.040' FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING ATS TOOL ID ATS2678 EXP 4/2023;09] INSTALLED FWD CARGO BAY NEW SUB-THRESHOLD WEB 654A0003-58 AT BS 440 TO 492 PER SRM 51-40-02-0G-0; DWG143A8122; DWG 143A8120 AND DWG 143A8330.;[10] CORRECTION ACTION: INSTALLED FWD CARGO BAY SUB-THRESHOLD WEB AT BS 440 TO 492 PER SRM 51-40-02-0G-0; DWG143A8122; DWG 143A8120 AND DWG 143A8330.;[11] VERIFIED CORRECTIVE ACTION 8-10

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