# SDR CALA2026040815219

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2026
- Submitted: April 8, 2026
- Operation: Air carrier
- Aircraft: [N57439](https://openairdocs.org/aircraft/N57439), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33534
- Aircraft time: 52,623 hours, 18,770 cycles
- 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/CALA2026040815219

## Discrepancy

R/H HORIZONTAL STAB LOWER SURFACE SKIN IS CRACKED ON THE INBD SIDE OF THE RIB AT STAB STA 147.90.   REPAIRED R/H HORIZONTAL LOWER SKIN PER B737-900 SRM 55-10-01-2R- 11 REPAIR 11.

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