What was found
(CAN) GARTER SPRING OF SEAL HAD WORN THROUGH THE RUBBER SEAL LIP AND WAS CHAFING INTO THE SPEEDI-SLEEVE. THE CHIP PLUG HAD ACCUMULATED BLACK SLUDGE GREATER THAN NORMAL AND THE COLOR OF THE OIL WAS OFF.
- Difficulty date
- December 19, 2011
- Submitted
- September 14, 2015
- Operation
- General aviation
- Make and model
- Bell 206L4
- Aircraft time
- 4,137 hours
- Engine
- Allsn 250C30P
- System (JASC)
- 6510 · Tail Rotor Drive Shaft
- Part
- Seal
- Part number
- 406340105101
- Condition
- Leaking
- Location
- T/R Gearbox
- Part time
- 454 hours
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.