# SDR ALGA020211278AL

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2011
- Submitted: February 7, 2011
- Operation: Air carrier
- Aircraft: [N278AL](https://openairdocs.org/aircraft/N278AL), registered now
- Make and model: Bell 206L-4
- Registry model: [Bell 206L-4](https://openairdocs.org/model/bell-helicopter-textron-canada-206l-4) (OpenAirDocs)
- Aircraft serial: 52313
- Aircraft time: 7,157 hours
- System (JASC): [6340 · Rotor Drive Indicating System](https://openairdocs.org/jasc/6340)
- Part: Drive Shaft
- Part number: 407340109101
- Condition: Sheared
- Location: Tach Generator
- Part time: 6,183 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ALGA020211278AL

## Discrepancy

IN FLIGHT, ACFT LOST HYDRAULIC POWER.  PILOT RETURNED TO BASE.  MX FOUND MAIN ROTOR TACH GENERATOR DRIVESHAFT SHEARED.

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