# SDR CALA2025100609623

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2025
- Submitted: October 6, 2025
- Operation: Air carrier
- Aircraft: [N33284](https://openairdocs.org/aircraft/N33284), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31635
- Aircraft time: 66,203 hours, 24,624 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 143A541011
- Condition: Cracked
- Location: Zone 200
- 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/CALA2025100609623

## Discrepancy

FORWARD PASSENGER CABIN FLOOR INTERCOSTAL CRACKED AT FASTENER HOLES B.S. 380 - B.S. 400 BL. 0 (51-022) ESFR ENTERED REMOVED AND REPLACED INTERCOSTAL AT FORWARD PASSENGER CABIN FLOOR STA 380 TO 400 LB 0 IAW SRM 51-40-02-0G-0 AND DWG # 143A5400 WORK ACCOMPLISHED BY V894534 AAR INS 250

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