Service difficulty report · Spring · Bolkms BO105S

Difficulty date
April 14, 2008
Submitted
May 2, 2008
Operation
General aviation
Make and model
Bolkms BO105S
Aircraft time
8,841 hours
Engine
Allsn 250C20B
Part
Spring
Part number
V40GT3911AA
Condition
Broken
Location
Tail Boom
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

(CAN) COMING OUT OF A MAJOR INSP, WHERE THE EJECTION SPRINGS ON ALL THE COWLS ( P/N 105-62648, 105-62664, 105-62643, 105-62663 AND 105-30851) WERE REPLACED. SEVERAL EJECTION SPRINGS P/N V40GT39-1-1AA WERE BREAKING INTO (2) PIECES. THIS PROBLEM HAPPENED STATICALLY ON THE GROUND. THESE EJECTION SPRINGS WERE ORDERED NEW FROM MFG, BATCH NR S0000243616 COMING FROM DIFFERENT LOT NR. BREAKAGE HAPPENS IN THE MFG LOGO STAMPED ON THE EJECTION SPRING. NEW EJECTION SPRINGS SAME PN, SAME BATCH NR USED TO REPLACE BROKEN ONES ON THIS AC. (TC NR 20080416001)