Service difficulty report · Rib · Bolkms BK117A4

Difficulty date
October 5, 2011
Submitted
October 6, 2011
Operation
Air carrier
Aircraft
N527MB
Make and model
Bolkms BK117A4
Aircraft serial
7103
Aircraft time
132,666 hours, 41,800 cycles
Part
Rib
Part number
1173040802
Condition
Cracked
Location
Zone 300
Part time
132,666 hours, 41,800 cycles
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

THE TOP RIB OF THE VERTICAL FIN WHERE THE ANTI COLLOSION LIGHT BASE IS MOUNTED, EXIBITS A CRACK RADIATING FROM THE NUTPLATE THAT IS MOUNTED UNDERNEATH.