Service difficulty report · Rib · Bolkms BK117C2

Difficulty date
September 15, 2023
Submitted
October 3, 2023
Operation
Air carrier
Aircraft
N918EC
Make and model
Bolkms BK117C2
Aircraft serial
9121
Aircraft time
5,370 hours, 13,554 cycles
Part
Rib
Part number
B533K139204
Part serial
NONE
Condition
Cracked
Location
Zone 100
Part time
5,370 hours, 13,554 cycles
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

MULTIPLE AREAS OF DAMAGE NOTED TO THE RH LOWER FUSELAGE DUE TO MIS-DRILLED NUT PLATES. REPAIRED DAMAGE TO THE RH STA 3795 LOWER RIB PN: B533K5139-204 AND RH LOWER SKIN (2 PLACES) PN: B533K5131-203 CAUSED BY MIS-DRILLED NUT PLATES AND ASSOCIATED ATTACHMENT HARDWARE I.A.W AIRBUS HELICOPTERS INC ISSUED RDAS AHI 145 53 003 23 ISSUE A.