# SDR SWAA2022040563872

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2019
- Submitted: May 16, 2022
- Operation: Air carrier
- Aircraft: [N558WN](https://openairdocs.org/aircraft/N558WN), registered now
- Make and model: Boeing 737-73V
- Registry model: [Boeing 737-73V](https://openairdocs.org/model/boeing-737-73v) (OpenAirDocs)
- Aircraft serial: 30248
- Aircraft time: 53,446 hours, 34,461 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2022040563872

## Discrepancy

DURING BOEING AOG VISIT TO REPLACE THE RH PICKLE FORK FRAME ASSY; CORROSION WAS NOTED IN THE UPPER SURFACE OF THE P/N 144A7311-20 WEB; STA 690; RBL 70; WL 195. CORROSION LOCATION AND REWORK DISPOSITION IS DOCUMENTED IN BOEING FRR-7. REFERENCE B737-700 IPC 53-12-00-05; SHEET 001; ITEM 430; BEAM INSTL-SECT 44 STGR S18A. NRC WRITTEN FOR CORROSION REPORTING ONLY. / REWORK OF CORROSION IS DOCUMENTED IN BOEING FRR-7; UNDER AGREEMENT SWA-RE-1906934. REF. EA 1-753-35958 FOR REPAIRS PERFORMED BY THE BOEING AOG TEAM. NOTE: CORROSION FOUND ON 11/8/19.

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