# SDR ASAA2026011364093

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2026
- Submitted: February 3, 2026
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 64,499 hours, 19,562 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 182A53041
- 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/ASAA2026011364093

## Discrepancy

LEFT HORIZONTAL STAB AT APPROX HSS 120.6 INTERNAL VERTICAL STIFFNER ON RIB 3RD ONE LOOKING AFT IS CRACKED. GROUNDED - YES. REPAIRED THE RIB STIFFNER  IAW SRM 55-10-09-2R-4. REMOVED & INSTALLED IAW SRM 51-40-02 AND AMM 51-31-00.

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