# SDR CALA2026090719296

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2026
- Submitted: September 9, 2026
- Operation: Air carrier
- Aircraft: [N39415](https://openairdocs.org/aircraft/N39415), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 32826
- Aircraft time: 57,213 hours, 20,551 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- 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/CALA2026090719296

## Discrepancy

THREE CRACKS FOUND ON LT HORIZONTAL STAB LOWER SKIN PANEL ADJACENT TO DOUBLER, TWO CRACKS AT HSS 129.50, 10 INCHES FWD OF T/E, CRACK LENGTH 1 INCH, & 18 INCH FWD OF T/E, CRACK LENGTH 1.250", AND ONE CRACK AT HSS 147.90, 10" FWD OF T/E, CRACK LENGTH .500 INCH.  COMPLETED INSTALLATION OF THE REPAIR PARTS, DOUBLER AND FILLERS AT LT HORIZONTAL STAB LOWER SKIN BETWEEN STAB STA 129.50 AND STAB STA 157.10 IAW SRM 51-40-02-0G-0, & SRM 55-10-01-2R-11.

---
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.