Service difficulty report · Coupling · Bell 206B

Difficulty date
February 12, 2003
Submitted
February 9, 2004
Operation
Air carrier
Aircraft
N921RB
Make and model
Bell 206B
Aircraft serial
2624
Engine
Allsn 250C*
Part
Coupling
Part number
212040687001
Condition
Worn
Location
M/R Driveshaft
Component
Driveshaft · Bell
Component part number
2120401103
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

RECEIVED FROM MFG AS NEW, COUPLING HAS ROUGH WEAR PATTERNS ON THE TEETH, SHOWS EVIDENCE OF BEING INSTALLED ON A SHAFT, AND HAS A WEAR PATTERN WHERE THE SEAL WOULD NORMALLY RIDE. BELL HAS RECENTLY IMPOSED A 3000 HOUR OVERHAUL OF THE DRIVESHAFT, PART RECEIVED WITHOUT HISTORICAL SERVICE RECORD. SN A5000.

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