# SDR CALA0400139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2004
- Submitted: February 20, 2004
- Operation: Air carrier
- Aircraft: N23657
- Make and model: Boeing 737524
- Aircraft serial: 28918
- Aircraft time: 15,859 hours, 8,221 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 65528941
- 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/CALA0400139

## Discrepancy

INSPECTION FOUND FLOOR SUPPORTS CRACKED AT FASTENER HOLES AT STA 540, RBL 2 AND LBL 2.  THERE WAS ONE CRACK IN EACH SUPPORT AND BOTH WERE TWO INCHES LONG.  THE FLOOR SUPPORTS WERE REPLACED IAW SRM 51-40-2.

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