SDR ALGA084683

Service difficulty report · Pinion Gear · Bell 407

Difficulty date
February 21, 2003
Submitted
February 25, 2003
Operation
Air carrier
Aircraft
N477AL
Make and model
Bell 407
Aircraft serial
53203
Aircraft time
7,826 hours
Part
Pinion Gear
Part number
6893672
Part serial
NN78560
Condition
Broken
Location
Engine G/B
Part time
1,223 hours
Component
Gearbox
Component part number
23063393
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

FOUND PINION GEARS HAD BROKEN GEAR TEETH CAUSING MASSIVE METAL IN OIL. THIS IS A REOCCURRING EVENT.

More about the Bell 407