# SDR UIEA2024092300917

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2024
- Submitted: September 24, 2024
- Operation: Air carrier
- Aircraft: [N471MC](https://openairdocs.org/aircraft/N471MC), registered now
- Make and model: Boeing 747412
- Aircraft serial: 26557
- Aircraft time: 92,959 hours, 15,218 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Damaged
- 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/UIEA2024092300917

## Discrepancy

FOUND L/H SIDE H.S.T TIP LOWER CHORD CRACK STAB BL 421.(<P>1. REPAIRED DAMAGE AREA IAW W/S #40728 AND SRM 55-10-09-2R-13 REV 60 AND EI T2024A55M-2162 REV=0. 2. ACCOMPLISHED EI T2024A55M-2162 REV=1. 3 JOB COMPLETED AND CONDITION CHECK NORMAL.</P>)

---
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.