SDR AOC05004

Service difficulty report · Spring · Bell 407

Difficulty date
December 13, 2005
Submitted
December 13, 2005
Operation
General aviation
Aircraft
N2869F
Make and model
Bell 407
Aircraft serial
53623
Engine
Allsn 250C47B
Part
Spring
Part number
407310104105
Condition
Broken
Location
Rotor Head
Part time
291 hours, 495 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING A 300 HR INSPECTION, A LEAD/LAG DAMPER SPRING WAS FOUND BROKEN IN 2 PLACES. JUDGING FROM THE BREAK LINES, THE SPRING HAD BEEN CRACKED FOR SOME TIME.

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