Service difficulty report · Bevel Gear · Bell 206L4

Difficulty date
June 23, 2012
Submitted
September 14, 2015
Operation
General aviation
Make and model
Bell 206L4
Engine
Allsn 250C30P
Part
Bevel Gear
Part number
406040021101
Condition
Cracked
Location
M/R Transmission
Part time
3,369 hours
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) MFG RECEIVED A REPORT THAT ACFT, FINDING A CRACKED TRANSMISSION BEVEL GEAR, FOLLOWING AN IN-FLIGHT CHIP LIGHT EVENT REPORT: ACFT WAS OPERATING IN AN OFFSITE LOCATION WHEN THE PILOT RECEIVED THE FIRST CHIP LIGHT, AFTER CHECKING THE CHIP PLUG THEY FELT THEY COULD RETURN TO SERVICE, SHORTLY AFTER A SECOND CHIP LIGHT OCCURRED AND THEY CARRIED OUT THE REQUIRED EVENTS FOR A CHIP LIGHT. THE PHOTO OF THE CHIP WAS SENT TO THE DOM OF THE COMPANY AND HE CHOSE TO GROUND THE ACFT AT THAT TIME. THE TRANSMISSION WAS REMOVED AND SENT FOR INSPECTION, AT THAT TIME THEY FOUND THE BEVEL GEAR CRACKED IN HALF.

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