What was found
HYD SYS LIGHT ILLUMINATED IN FLIGHT. MX FOUND HYD PUMP DRIVESHAFT SPLINES AND TRANSMISSION OIL PUMP OUTPUT SHAFT SPLINES WORN AWAY. R & R HYD PUMP DRIVESHAFT AND TRANSMISSION OIL PUMP.
- Difficulty date
- August 27, 2010
- Submitted
- August 31, 2010
- Operation
- Air carrier
- Aircraft
- N697AL
- Make and model
- Bell 407
- Aircraft serial
- 53374
- Aircraft time
- 10,570 hours
- Engine
- Allsn 250C47B
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Drive Shaft
- Part number
- 406040072105
- Condition
- Worn
- Location
- Hyd Pump
- Stage of operation
- AP
- How discovered
- O
- Nature of condition
- F
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.