# SDR SWAA2022082938557

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2022
- Submitted: August 29, 2022
- Operation: Air carrier
- Aircraft: [N261WN](https://openairdocs.org/aircraft/N261WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32517
- Aircraft time: 53,121 hours, 31,580 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- 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/SWAA2022082938557

## Discrepancy

CORROSION SPOTS AROUND FASTENERS HEADS AT FWD CARGO COMPARTMENT AFT BULKHEAD LOWER BILGE FLOOR SUPPORT ANGLE STA 500D FROM S-25L TO S-25R MKD DOT / [01] BLENDED OUT AREA IN ACCORDANCE B-737-700 SRM 51-10-02-0G-0.;[02] AFTER REMOVING CORROSION THE DEEPEST POINT WAS FOUND IN LBL 3 WITH A REMAINING THICKNESS OF 0.050 IN; ORIGINAL THICKNESS WAS 0.071 IN; MATERIAL LOST 0.021. FOUND OUT OF LIMITS IN ACCORDANCE TO B-737-700 SRM 53-00-53-1A-2.;[03] VERIFIED BLEND & EVALUATION;[04] LOCATED AND DRILLED NEW PART AS PER B-737-700 SRM 51-40-05-0G-0; DRAWING #: 143A9481.;[05] NEW PART INSTALLATION WOULD BE ACCOMPLISHED IN WORK CARD: TTG8Q004DCHM.;[06] VERIFIED STEPS 4; 5

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