# SDR UIEA2012051400224

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2012
- Submitted: May 14, 2012
- Operation: Air carrier
- Aircraft: [N747BC](https://openairdocs.org/aircraft/N747BC), registered now
- Make and model: Boeing 747-4J6
- Registry model: [Boeing 747-4J6](https://openairdocs.org/model/boeing-747-4j6) (OpenAirDocs)
- Aircraft serial: 25879
- Aircraft time: 32,272 hours, 9,208 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Cracked
- Location: Horizontal 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/UIEA2012051400224

## Discrepancy

CRACK DAMAGE ON RIB OF RT HORIZONTAL STAB L/E STA 131.946.  REPAIRED IAW EI T2012A55B-869, REV 00 AND REV. 01.

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