# SDR ASAA2022092240156

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2022
- Submitted: October 6, 2022
- Operation: Air carrier
- Aircraft: [N597AS](https://openairdocs.org/aircraft/N597AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35689
- Aircraft time: 52,163 hours, 15,585 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Skin
- Part number: 186A100041
- Part serial: SAIC1217
- Condition: Cracked
- 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/ASAA2022092240156

## Discrepancy

LEFT HORIZONTAL STABILIZER LOWER SKIN CRACKED AT STAB STA. 129.5 24" FWD IF THE AFT SPAR. APPROX. 1.250" LONG (AS MARKED). GROUNDED - YES. REPAIRED LEFT HORIZONTAL LOWER SKIN AT STAB STA 129.5", 24" FWD OF AFT SPAR USING MAT: 2024-T3 .100" ALCLAD DOUBLER AND 2024-T3 .071" ALCLAD FOR FILLER. REMOVED AND INSTALLED PANELS 331B AND 335A ALL WORK ACCOMPLISHED IAW B737-SRM 55-10-01-2R-11 REPAIR 11. B737-800 AMM 55-10-00-000-801, AMM 55-10-00-400-801, AMM 27-41-21-000-801, AMM 27-41-21-400-801. THIS A CATEGORY B REPAIR 56,000 FLT CYCLES THRESHOLD.

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