# SDR CALA2025102810635

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2025
- Submitted: October 28, 2025
- Operation: Air carrier
- Aircraft: [N75435](https://openairdocs.org/aircraft/N75435), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33529
- Aircraft time: 51,181 hours, 18,376 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Part number: 182A4001
- 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/CALA2025102810635

## Discrepancy

CRACK INDICATION FOUND AND VERIFIED, R/H HORIZ ST AB LOWER SKIN STA 120.30  .800L 25.5" AFT OF FRONT SPAR I/B OF I/B FASTENER ROW.   EVAL CRACK ON LOWER SKIN STA 120.30, 25.5 INCHES OF FRONT SPAR, CUTOUT DAMAGE AND REMOVED EXISTING DOUBLER AT STA 120 IAW SRM 55-10-01-2R-11, FABRICATED FILLER AND INSTALLED PER SRM 55-10-01-2R-11 NEW DOUBLER INSTALLED AND FABRICATED ON CARD 9282785.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.