# SDR ASAA2024122755340

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2024
- Submitted: January 31, 2025
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 56,501 hours, 16,822 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Part number: 182A400112
- 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/ASAA2024122755340

## Discrepancy

ACCESS REQ AT STA 92.70 FOR 2EA CRACKS IN RIB, REPAIR 11 REQ. GROUNDED - YES. REPAIRED AREA WITH REPAIR 11 AT STA. 92.70 OF RH HORIZONTAL STABILIZER LOWER SKIN IAW B737-800 SRM 55-10-01-2R-11, REPAIR 11. THIS IS A CATEGORY B REPAIR, INSPECTION THRESHOLD IS 56,000 TOTAL FLIGHT CYCLES, METHOD IS EXTERNAL LOW FREQUENCY EDDY CURRENT (LFEC) INSPECTION, INTERVAL IS 9,000 FLIGTH CYCLES, REFERENCE 737 NDT PART 6, 51-00-26, FIG 1.

---
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.