# SDR DL73K010638

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 18, 2001
- Submitted: May 8, 2001
- Operation: Air carrier
- Aircraft: [N307DL](https://openairdocs.org/aircraft/N307DL), registered now
- Make and model: Boeing 737232
- Aircraft serial: 23079
- Aircraft time: 49,323 hours, 38,386 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL73K010638

## Discrepancy

THE BL 0 LONGITUDINAL FLOORBEAM OVER THE CENTER WING WAS FOUND WITH A CRACK IN THE UPPER CHORD AND WEB AT FS 660 AND WITH 4 CRACKS IN THE WEB AT UPPER CHORD ATTACH POINTS AT FS 700.  THE CRACKING IS TYPICAL OF BAC S/B 737-57-1210.  THE  FLOORBEAM WAS REPAIRED AND MODIFIED PER THE REQUIREMENTS   OF THE S/B AND DOCUMENTED PER ER/A 380586-14.

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