# SDR CALA2025080807494

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2025
- Submitted: August 8, 2025
- Operation: Air carrier
- Aircraft: [N75433](https://openairdocs.org/aircraft/N75433), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33527
- Aircraft time: 51,735 hours, 18,355 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: B7375530239
- Condition: Cracked
- Location: Zone 300
- 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/CALA2025080807494

## Discrepancy

CRACK FOUND ON LEFT HORIZONTAL STABILIZER IN SPAR RIB NR 2 STIFFENER LWR END AT STAB STA 184.70.   ACCOMPLISHED REPAIR OF LT HORIZONTAL STAB INSPAR RIB STIFFENER NR 2 AT STAB STA 184.70 AS PER SRM 55-10-09-2R-4.   REPAIRED DURING D1 CHECK. ACCOMPLISHED REPAIR OF LEFT HORIZONTAL STAB INSPAR RIB STIFFENER NR 2 AT STAB STA 184.70 IAW SRM 55-10-09-2R-4.

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