# SDR CALA2013091191210

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2009
- Submitted: September 11, 2013
- Operation: Air carrier
- Aircraft: N174UA
- Make and model: Boeing 747422
- Aircraft serial: 24381
- Aircraft time: 73,069 hours, 8,191 cycles
- Engine: Pwa PW4056
- System (JASC): [5514 · Horizontal Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5514)
- Part: Structure
- Condition: Damaged
- Location: Rt Horiz 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/CALA2013091191210

## Discrepancy

RT HORIZONTAL STABILIZER AFT UPPER CHORD, STATION 2590, RBL 43.5 A FASTENER HOLE WAS FOUND DAMAGED DURING COA 850111.  OVER-SIZED HOLE TO APPROXIMATELY 0.469 INCHES & INSTALLED BOLT WITH NUT IAW UA-EVA-72110 & FAA FORM 8100-9. (DIFFICULTY DATE SUBMITTED AS 11/10/2008)

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