Service difficulty report · Transmission · Bell 407

Difficulty date
November 1, 2021
Submitted
November 4, 2021
Operation
Air carrier
Aircraft
N655RA
Make and model
Bell 407
Aircraft serial
54116
Aircraft time
2,263 hours, 10,912 cycles
Part
Transmission
Part number
407040007103
Part serial
BH246216
Condition
None
Location
Center Fuselage
Part time
1,756 hours
Stage of operation
CR
How discovered
V
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

PILOT REPORTED IN CRUISE FLIGHT A TRANSMISSION CHIP LIGHT ILLUMINATED WITH A PATIENT ON BOARD. PILOT PERFORMED A PRECAUTIONARY LANDING WITHOUT INCIDENT. PATIENT WAS TRANSPORTED BY GROUND. MECHANIC INSPECTED TRANSMISSION CHIP DETECTORS AND FOUND A HAIR LIKE SLIVER. CLEANED TRANSMISSION CHIP DETECTORS AND REINSTALLED. PERFORMED A 20 MINUTE GROUND RUN UNDER POWER AND RE-INSPECTED CHIP PLUG. NO FURTHER DEFECTS. REPOSITIONED AIRCRAFT TO BASE AND PERFORMED A SERVICEABILITY CHECK PER THE BELL MAINTENANCE MANUAL WITH NO DEFECTS NOTED. AIRCRAFT RELEASED FOR RETURN TO SERVICE.

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