# SDR ASAA2022020237432

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2022
- Submitted: February 16, 2022
- Operation: Air carrier
- Aircraft: N309AS
- Make and model: Boeing 737990
- Aircraft serial: 30857
- Aircraft time: 68,950 hours, 27,818 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Skin
- Part number: 182A40012
- Part serial: NA
- 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/ASAA2022020237432

## Discrepancy

CRACK FOUND BETWEEN STAB STA. 120.30 AND 129.50 APROX 1.0" LONG. AREA MARKED ON H-STAB LOWER SKIN. GROUNDED - YES. REPAIRED THE R/H HORIZ STAB LWR SKIN PER B737-900 SRM 55-10-01-2R-11.REPAIR IS A CAT "B" AND HAS AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.