# SDR SWAA2024121055906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 2, 2024
- Submitted: December 10, 2024
- Operation: Air carrier
- Aircraft: [N274WN](https://openairdocs.org/aircraft/N274WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32529
- Aircraft time: 57,880 hours, 34,803 cycles
- System (JASC): [5340 · Fuselage Main, Attach Fittings](https://openairdocs.org/jasc/5340)
- Part: Support
- Condition: Corroded
- Location: Zn 100 Fus Lower
- 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/SWAA2024121055906

## Discrepancy

CORROSION ON SUPPORT ZEE LOCATED BTW BS727C TO BS727E WL156 AND RBL21 AFT CARGO COMPARTMENT 2024-685334<[01] STEP 4 TOOL USED: ULTRASONIC THICKNESS GAGE; P/N:45MG; S/N:130066701; DUE DATE: 12-JUL-25.;[02] REPLACED SUPPORT ZEE AND FASTENERS LOCATED ON BS727 TO BS767 BTW STR25R AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; SRM B737-700 SRM 51-10-02 ITEM 9 AND DRAWING #146A7500; SHEET 85; REV A.<BR>SEE INDIVIDUAL SIGN OFF BELOW;[03] REPLACED SUPPORT ZEE AND FASTENERS LOCATED ON BS727 TO BS767 BTW STR25R AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; SRM B737-700 SRM 51-10-02 ITEM 9 AND DRAWING #146A7500; SHEET 85; REV A. COMPLETED; RII VERIFIED

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