SDR QMLA2014122614142

Service difficulty report · Frame · Bolkms BK117C2

Difficulty date: December 26, 2014
Submitted: December 29, 2014
Operation: Air carrier
Aircraft: N145SU
Make and model: Bolkms BK117C2
Aircraft serial: 9102
Aircraft time: 4,796 hours, 14,509 cycles
System (JASC): 5302 · Rotorcraft Tail Boom
Part: Frame
Part number: SEEABOVE
Condition: Cracked
Location: Tailboom
Part time: 4,796 hours, 14,509 cycles
Component: Tailboom · Urocop
Component part number: B535M2095102
Stage of operation: UK
How discovered: O
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 INSPECTION OF TAIL BOOM FOUND CRACKS ON UPPER & LOWER FRAME 9LA & 7L. UPPER FRAME 9LA IS CRACKED AT RBL 200 & WL 3000, CRACK IS APPROX .25 INCHES. LOWER FRAME 9LA IS CRACKED AT RBL 200, LBL 200 & WL 3000, BOTH CRACKS ARE APPROX .5 INCHES. FRAME 7L IS CRACKED AT RBL 200 & WL 3000, CRACK IS APPROX 1.5 INCHES. FRAME PN'S 117-30254.14, B5335M2005101, B535M2047201.