SDR 97ZZZX2963

Service difficulty report · Bearing · Bolkms BK117B1

Difficulty date: December 28, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N7060G
Make and model: Bolkms BK117B1
Aircraft serial: 7173
Engine: Lyc LTS101750B1
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Bearing
Part number: 430151101
Condition: Failed
Location: Nr 2
Part time: 3,160 hours
Component: 400100025
Stage of operation: IN
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

BEARING FAILURE. WHILE INCREASING POWER TO FLIGHT IDLE, PILOT REPORTED A LOUD BANG AND ORANGE FLASH FROM THE NR 1 ENGINE. ENIGINE WAS BETWEEN 80 TO 85 PERCENT WHEN BANG WAS HEARD. NR 2 BEARING PN 4-301-511-01, SN 4-3556, INSTALLED 9-15-96, TT 85.0 HOURS. PART TOTAL CYCLES, 3,159.4.