# SDR CALA2026060416820

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2026
- Submitted: June 4, 2026
- Operation: Air carrier
- Aircraft: [N45440](https://openairdocs.org/aircraft/N45440), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33535
- Aircraft time: 52,790 hours, 18,878 cycles
- System (JASC): [5514 · Horizontal Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5514)
- Part: Seal
- Part number: 181A80251
- 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/CALA2026060416820

## Discrepancy

LEFT HORIZONTAL STAB FWD UPPER SLIDING SEAL IS CRACKED AT THE CONTACT POINT OF THE SLIDE TRACK. . REMOVED AND REPLACED L/H HORIZONTAL STAB FWD UPPER SLIDING SEAL IAW AMM 53-31-53.

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