# SDR 96ZZZX2919

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Hamilton Sundstrand World Wide Repair, repair station SI3R842L](https://openairdocs.org/faa-repair-station/SI3R842L/hamilton-sundstrand-world-wide-repair.md) (OpenAirDocs)
- Make and model: Saab SF340A
- Registry model: [Saab SF340A](https://openairdocs.org/model/saab-scania-sf340a) (OpenAirDocs)
- Engine: Ge CT75A2
- System (JASC): [7210 · Turbine Engine Reduction Gear](https://openairdocs.org/jasc/7210)
- Part: Idler Gear
- Part number: 7757535
- Condition: Failed
- Location: Lt Prop Grbox
- Part time: 3,863 hours
- Component: 7758002
- 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/96ZZZX2919

## Discrepancy

DISASSEMBLY OF THE PROPELLER GEARBOX REVEALED THE LT IDLER GEAR (775753-5 ITEM 40 OF FIG 5 IN MANUAL 72-11-02) WEB FAILED AND THE GEAR HAD BROKEN THROUGH THE GEARBOX HOUSING.  THE FORWARD INPUT ROLLER BEARING (775765-1 ITEM 180 OF FIG 8) HAD BROKEN AND THE ROLLERS FOUND IN THE BOTTOM OF THE GEAR CASE.

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