# SDR SWAA2022090633770

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2022
- Submitted: September 6, 2022
- Operation: Air carrier
- Aircraft: N493WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32477
- Aircraft time: 58,674 hours, 34,928 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: None
- Part number: 147A8540U7ATSMRO
- Condition: Corroded
- Location: Aft Galley
- 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/SWAA2022090633770

## Discrepancy

CORROSION FLOOR STRUCTURE INNER CHORD LOCATED BETWEEN BS 947.5 TO BS 986.5 WL 208.1 AND LBL 51 AFT GALLEY AND LAV 2022-409987 / [01] TOOL USED: CALIPER; PN: 500-197-30; SN: A21147752; DUE DATE: 06-OCT-22.;[02] REPLACED INNER CHORD LOCATED BETWEEN BS 867.5 TO BS 1006 WL 208.1 AND LBL 51 AFT GALLEY AND LAV IAW B737-700 AND SRM 51-40-02 AND DWG 147A8501 SHEET #39 REV:C.SEE INDIVIDUAL STEP SIGN OFFS BELOW;[03] REPLACED INNER CHORD LOCATED BETWEEN BS 867.5 TO BS 1006 WL 208.1 AND LBL 51 AFT GALLEY AND LAV IAW B737-700 AND SRM 51-40-02 AND DWG 147A8501 SHEET #39 REV:C.SEE INDIVIDUAL STEP SIGN OFFS BELOW.. RII ITEM

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