# SDR SWAA2022052600568

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2022
- Submitted: May 31, 2022
- Operation: Air carrier
- Aircraft: [N479WN](https://openairdocs.org/aircraft/N479WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33990
- Aircraft time: 59,976 hours, 35,850 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: 146A812710
- Condition: Corroded
- Location: Aft Cargo Bay
- 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/SWAA2022052600568

## Discrepancy

CORROSION>>>>> AFT CARGO COMP DOOR SILL AREA ;FLOOR PANEL SUPPORT UPPER SURFACE HAS EVIDENCE OF SURFACE CORROSION BETWEEN BS 847 TO BS 867. / [01] REMOVED CORROSION ON AFT CARGO COMP DOOR SILL AREA ;FLOOR PANEL SUPPORT UPPER SURFACE BETWEEN BS 847 TO BS867 AS PER REF B737 SRM 51-10-02-0G-0 FOUND EXFOLIATE CORROSION OUT OF LIMITS AS PER REF B737 SRM 53 -0-53-1A-2;[02] VERIFIED 1;[03] DUPLICATE OF BAR CODE TTG8Q00C668T;[04] VERIFIED 3

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