Service difficulty report · Bolt · Bell 206B

Difficulty date
January 30, 1997
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Bell 206B
Engine
Allsn 250C20
Part
Bolt
Part number
684946812142
Condition
Cracked
Location
Compressor
Stage of operation
IN
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

(CAN) WHILE BUILDING UP AN ENGINE AND INSTALLING A COMPRESSOR, THE BOLT USED TO RETAIN THE COMPRESSOR TO THE GEARBOX. IT WAS A NEW BOLT, BUT UPON CLOSE EXAMINATION USING A GLASS, A CRACK WAS FOUND WHERE THE LANDS CONVERGE.

More about the Bell 206B