Service difficulty report · Rib · Bolkms BK117C2

Difficulty date
January 22, 2026
Submitted
February 2, 2026
Operation
Air carrier
Filed by
2A6R933B
Air Methods, LLC
Aircraft
N381MS
Make and model
Bolkms BK117C2
Aircraft serial
9293
Aircraft time
6,397 hours, 21,790 cycles
Part
Rib
Part number
B531K1341205
Condition
Cracked
Location
Zone 100
Part time
6,397 hours, 21,790 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

DAMAGE TO THE FWD BOTTOM LBL195 RIB IN THE FORM OF A CRACK IN THE RADIUS OF THE TOP FLANGE. THE CRACK WAS FOUND BENEATH THE CENTER CONSOLE MOUNT AND WAS MEASURED TO BE APPROXIMATELY 1.0” IN LENGTH. A DETAILED DESCRIPTION OF THE DAMAGE AND AN APPROVED REPAIR PROCEDURE IS PROVIDED IN REPAIR DESIGN APPROVAL SHEET RDAS-BK117-53-2026-0058A, REV A.