# SDR UPS08M51475

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2007
- Submitted: January 21, 2008
- Operation: Air carrier
- Aircraft: [N291UP](https://openairdocs.org/aircraft/N291UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48477
- Aircraft time: 45,846 hours, 5,703 cycles
- System (JASC): [5514 · Horizontal Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5514)
- Part: Structure
- Condition: Corroded
- Location: 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/UPS08M51475

## Discrepancy

INSPECTION TYPE:C LEFT HORZ STAB NR 23 BARREL NUT HOLE FOUND CORROSION.  CORR AT B NUT REMOVED.  BORE BOTTOM SURFACE CLEANED & BORE REAM TO 1.067" DIA, REMN BLEND OUT 0.048" DEEP, EXCEEDED LIMITS.  10X MAG-DETAIL VISUA L INSP C/O & FOUND NO CORR EVIDENT.  B NUT BORE, BLEND OUT VOIDS & BOTTOM PERIPHERY RADIUS, SMOOTHEN & PROTECTED.  REPAIR SLEEVE BUSHING FAB & INSTALLED.  REPAIR C/O IS ACCEPTABLE PER EN1726-07.

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