# SDR UPS07M49894

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2007
- Submitted: June 8, 2007
- Operation: Air carrier
- Aircraft: [N287UP](https://openairdocs.org/aircraft/N287UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48539
- Aircraft time: 62,215 hours, 9,282 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/UPS07M49894

## Discrepancy

INSPECTION TYPE:C HORZ STAB BARREL NUT BORE NR 33 LT FOUND WITH CORROSION.  CORROSION REMOVED SRM 51-21-01VII R38.  BOTTOM-REMAIN BLENDOUT 0.070" DEEP BORE REAMED TO 1.178" DIA REMAIN BLENDOUT 0.070" DEEP EXCEED EO LIMITS.  10X MAG DVI C/O NO CORROSION.  BN BORE BLENDOUT & BOTTOM PERI RADIUSED, SMOOTHEN & PROTECTED SRM 51-21-01VII R38.  REPAIR SLEEVE BUSHING FAB & INSTALED PER EO FIG 5.  REPAIR C/O AT BN BORE NR 33LT IS ACCEPTABLE IAW EN1202-07.

---
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.