# SDR CALA2015090394269

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2015
- Submitted: September 3, 2015
- Operation: Air carrier
- Aircraft: N127UA
- Make and model: Boeing 747422
- Aircraft serial: 28813
- Aircraft time: 56,281 hours, 6,537 cycles
- Engine: Pwa PW4056
- System (JASC): [5531 · Vertical Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5531)
- Part: Bulkhead
- Condition: Cracked
- Location: Vertical 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/CALA2015090394269

## Discrepancy

VERTICAL STAB REAR BULKHEAD AT LT & RT CHORD, FOUND CRACKED APPROX RUB STATION 382.4, CARRIED FROM 10 17 2013.  EMPENNAGE VERTICAL STAB REAR BULKHEAD AT LT & RT CHORD, REPAIRED IAW ECRA FOR RT ECRA 5530-01730 & LT ECRA 5530-01732.  THIS SMC IS FOR LT SIDE SEE SMC 017 FOR THE RT SIDE.

---
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.