# SDR ASAA2021031034482

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2021
- Submitted: April 1, 2021
- Operation: Air carrier
- Aircraft: [N568AS](https://openairdocs.org/aircraft/N568AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35183
- Aircraft time: 50,193 hours, 15,088 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Part number: 182A400112
- Condition: Cracked
- Location: Rt Horiz Stab
- 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/ASAA2021031034482

## Discrepancy

R/H HORIZONTAL STAB. LOWER SKIN AT AFT SPAR, FWD OF FWD ROW FASTENERS @ STAB.STA. 101.90 + 4" MARKED 1.550"L CRACK FOUND. GROUNDED - YES. REPAIRED HORIZONTAL STAB. LOWER SKIN AND RIB FITTING IAW B737-800 SRM 55-10-01-2R-11 REPAIR 11 AND ALASKA EA 800-55EA-23337 REV 00 DATED 3/31/2021. LOWER SKIN REPAIR IS A CAT B REPAIR AND REQUIRES RE-INSPECT AT56,000 FLIGHT CYCLES. RIB FITTING REPAIR IS A CAT A REPAIR IAW FAA FORM 8100-9.

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