# SDR CALA2026092819863

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2026
- Submitted: September 28, 2026
- Operation: Air carrier
- Aircraft: [N78509](https://openairdocs.org/aircraft/N78509), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31638
- Aircraft time: 58,440 hours, 21,416 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: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026092819863

## Discrepancy

EA 5510-01843,  CRACK FOUND ON RT HORIZONTAL STAB LOWER IN-SPAR SKIN AT HSS 120.30, INBD OF INBD FASTENER ROW, 10.5" FWD OF T/E.  REPAIRED RT HORIZONTAL STAB LOWER IN SPAR SKIN AT HSS 120.30 IAW SRM 55-10-01-2R-11. REPAIR 11.

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