# SDR SWAA2022011045864

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2021
- Submitted: January 10, 2022
- Operation: Air carrier
- Aircraft: N7817J
- Make and model: Boeing 737-7L9
- Registry model: [Boeing 737-7L9](https://openairdocs.org/model/boeing-737-7l9) (OpenAirDocs)
- Aircraft serial: 28013
- Aircraft time: 55,382 hours, 27,558 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Corroded
- Location: Cargo Threshold
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022011045864

## Discrepancy

FWD CARGO BAY SUB THRESHOLD CORROSION; MEASURED BS440 TO AFT; BS440+14; +16; +18; +21-29; +30-31; +33; +36.5; AND +38.5 ; / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 440+18 RBL 29 WL 156. FOUND 0.015 TO BE REMOVED FROM ORIG 0.045 IN 1'X1' AREAS. FOUND TO BE OUT OF LIMITS PER SRM 53-30-15-1A-1 USING DIAL DEPTH GAUGE ID ATS 2678 S/N UNKNOWN; [02] VERIFIED CORRECTIVE ACTION 1. <BR><BR>OUT OF LIMITS.; [03] LOCATED ;DRILLED ; DEBURRED; INSTALLED NUTPLATES ON NEW FWD CARGO BAY SUB THRESHOLD WEB PER SRM 51-40-05-0G-0; SRM 51-40-02-0G-0; DWG 143A8330.; [04] VERIFIED LOCATED ;DRILLED ; DEBURRED; INSTALLED NUTPLATES ON NEW FWD CARGO BAY SUB THRESHOLD WEB PER SRM 51-40-05-0G-0; SRM 51-40-02-0G-0; DWG 143A8330.

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