# SDR UPS05M45521

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2005
- Submitted: September 28, 2005
- Operation: Air carrier
- Aircraft: [N256UP](https://openairdocs.org/aircraft/N256UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48405
- Aircraft time: 56,408 hours, 10,885 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Structure
- Condition: Corroded
- Location: Horizontal Stab
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS05M45521

## Discrepancy

RT HORIZ STAB BARREL NUT BORE NR 22R FOUND WITH CORROSION.  CORROSION REMOVED PER SRM 51-21-01.V2R37, B/N HOLE 22R REAMED TO 1.067" AND REMAINING BLEND OUT 0.020" DEEP, FOUND OUT OF LIMIT.  REWORKED B/N HOLE 22R BORE RADIUS SMOOTHENED AND PROTECTED PER SRM 51-21-01V2.R37.  FAB SLEEVE REPAIR BUSHING PER EO MD11-5510-19409-J.FIG.5.  APPLIED SEALANT PR1422 B1/2 AT 22R BORE AND INSTALLED S/BUSHING PER SRM51-21-01V2.R37, SATIS.

---
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.