# SDR SWAA2023030398965

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2023
- Submitted: March 3, 2023
- Operation: Air carrier
- Aircraft: [N7746C](https://openairdocs.org/aircraft/N7746C), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33934
- Aircraft time: 50,644 hours, 26,573 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Beam
- Condition: Cracked
- Location: Zn 200 Fus Top
- 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/SWAA2023030398965

## Discrepancy

CRACK ON UPPER CHORD OF FLOOR BEAM BST 294.5 APPROX. RBL 59 AND WL 208.1 2023-99259<[01] TOOL USED: EDDY CURRENT EQUIPMENT P/N: NORTEC 500D S/N: N500X1693P030457; DUE DATE: 06-AUG-23;[02] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 112031023; DUE DATE: 01-FEB-24; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 112820025; DUE DATE: 01-FEB-24.<BR>TEMPERATURE: 922 FAHRENHEIT.<BR>TIME: 38 MINUTES.;[03] TOOL USED RADIOMETER PHOTOMETER P/N XRP-3000 S/N 1998072 DUE DATE 03-MAY-23.;[04] PERFORMED PERMANENT REPAIR (CATEGORY A) ON UPPER CHORD OF FLOOR BEAM BST 294.5 . RBL 25 AND WL 208.1 IAW B737-700 SRM 53-10-51-2R-16 REPAIR 16 ALTERNATIVE 2 DETAIL G ; SEE INDIVIDUAL SIGN OFF BELOW;[05] PERFORMED PERMANENT REPAIR (CATEGORY A) ON UPPER CHORD OF FLOOR BEAM BST 294.5 . RBL 25 AND WL 208.1 IAW B737-700 SRM 53-10-51-2R-16 REPAIR 16 ALTERNATIVE 2 DETAIL G ; SEE INDIVIDUAL SIGN OFF BELOW AS RII

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