# SDR SWAA2023021089331

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2023
- Submitted: February 10, 2023
- Operation: Air carrier
- Aircraft: [N7748A](https://openairdocs.org/aircraft/N7748A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36399
- Aircraft time: 49,386 hours, 25,198 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Beam
- 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/SWAA2023021089331

## Discrepancy

CORROSION ON FLOOR BEAM LOCATED BS 986.5 LBL 46 WL 208.1 AT AFT GALLEY AREA 2022-708734<[01] TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC500D; SN: N500X12101V022235; DUE DATE: 03 AUG 23;[02] TOOL USED: P/N FPK-PRO-104; S/N PRO-3446; DUE DATE 12/JAN/23;[03] PERFORMED PERMANENT REPAIR LOCATED ON FLOOR BEAM STRUCTURE STA. 986.5 LBL 46 WL 208.1 AT AFT GALLEY AREA IAW B737-700 SRM B737-700 SRM 53-70-51-2R-6 REPAIR 6 FIGURE 205 ALTERNATIVE 4. MATERIAL USED: [1] STRAP (1EA) P/N: 7075-T6 0.100 P.O: 2012-531818; [2] ANGLE (1EA) P/N: BAC1490-2887 P.O:2022-197779; [3] FILLER (1EA) P/N: 7075-T6 0.150 P.O: 2022-190765. SEE INDIVIDUAL SIGN OFF BELOW.;[04] PERFORMED PERMANENT REPAIR LOCATED ON FLOOR BEAM STRUCTURE STA. 986.5 LBL 46 WL 208.1 AT AFT GALLEY AREA IAW B737-700 SRM B737-700 SRM 53-70-51-2R-6 REPAIR 6 FIGURE 205 ALTERNATIVE 4. MATERIAL USED: [1] STRAP (1EA) P/N: 7075-T6 0.100 P.O: 2012-531818; [2] ANGLE (1EA) P/N: BAC1490-2887 P.O:2022-197779; [3] FILLER (1EA) P/N: 7075-T6 0.150 P.O: 2022-190765. SEE INDIVIDUAL SIGN OFF BELOW.AS RII.

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