Service difficulty report · Frame · Bolkms BK117A3

Difficulty date
March 14, 2012
Submitted
April 6, 2012
Operation
Air carrier
Aircraft
N911BK
Make and model
Bolkms BK117A3
Aircraft serial
7099
Aircraft time
10,576 hours, 43,570 cycles
Part
Frame
Part number
105304161
Condition
Cracked
Location
Tailboom Fin
Part time
10,576 hours
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 VISUAL INSPECTION OF VERTICAL FIN INNER AND OUTER SURFACE, A CRACK WAS NOTED ON THE LT SIDE CAMLOC FRAME THAT SUPPORTS THE VERTICAL FIN COWL. THE CRACK IS APPROXIMATELY 2 INCHES IN LENGTH LOCATED BETWEEN THE 4TH CAMLOC RECEPTACLE COUNTING UP FROM THE BOTTOM OF THE FRAME AND THE VERTICAL FIN SKIN AND DOUBLER. THERE IS NO CHAFING OR CORROSION NOTED AFFECTING THE AREA. MFG WILL ONLY ALLOW REPLACEMENT OF THE ENTIRE CAMLOC FRAME AS OUTLINED IN THE SRM.