# SDR 97ZZZX6191

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Standard Aero (Alliance) Inc, repair station AE0R215N](https://openairdocs.org/faa-repair-station/AE0R215N/standard-aero-alliance-inc.md) (OpenAirDocs)
- Engine: Garrtt TPE33112UHR
- System (JASC): [7260 · Turbine Engine Accessory Drive](https://openairdocs.org/jasc/7260)
- Part: Bearing
- Part number: 31030351
- Condition: Failed
- Location: Assory Grbox
- Part time: 689 hours
- Component: 31036016
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX6191

## Discrepancy

ENGINE RECEIVED FROM AIR CARRIER FOR THIS REPAIR.  REPAIR STA NOT SURE IF THERE WAS AN IN-FLIGHT SHUT DOWN OCCURRENCE. REPAIR OF ENGINE WAS TO REPLACE ACCESSORY GEAR ASSEMBLY WITH OVERHAULED UNIT OF SAME PART NUMBER, CONTAINING NEW 3103035-1 BEARINGS.  THESE BEARINGS ARE LIFE LIMITED PARTS.  (CURRENTLY TIED TO OVERHAUL OR CAM INTERVAL).  ALLIED SIGNAL HAS ISSUED A SB, TPE331-72-0997, THAT SUPERSEDES THE ACCESSORY GEAR ASSEMBLY WITH AN IMPROVED PART, USING LARGER BEARINGS.  REPAIR STA DID NOT INCORPORATE THIS SB, HOWEVER.

---
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.