# SDR UPS04M42271

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2004
- Submitted: April 26, 2004
- Operation: Air carrier
- Aircraft: [N274UP](https://openairdocs.org/aircraft/N274UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft time: 33,607 hours, 5,223 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Structure
- Condition: Corroded
- 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/UPS04M42271

## Discrepancy

INSPECTION TYPE: C,  HORIZONTAL STABILIZER LT NR 31 BARREL NUT HOLE FOUND CORROSION ON BOTTOM , SIDEWALL AND BEARING SURFACE.   MINOR SURFACE CORROSION ON BOTTOM OF HOLE NR 31 REMOVED PER SRM 51-21-01 VO L II REV 34, MATERIAL REMOVED 0.008 WITHIN LIMITS OF EN1042-04.   BARREL NUT HOLE REPAIRED PER EN1042-04.   BUSHING FABRICATED AND INSTALLED PER EO MD11-5510-19409D. (REF. UPS ENGINEERING FILE NR MD11-55-20017)

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