SDR 98ZZZX3843

Service difficulty report · Rotor Assy · Bolkms BK117A4

Difficulty date
December 22, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N586BH
Make and model
Bolkms BK117A4
Aircraft serial
7129
Engine
Lyc LTS101650B1
Part
Rotor Assy
Part number
414129001
Condition
Damaged
Location
Turbine
Part time
282 hours
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

SECONDARY DAMAGE DUE TO BEARING FAILURE. SHAFT GROOVED. CORE UNIT RETAINED IN PHX BY ASE ENGINEERING FOR FURTHER INVESTIGATION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES: 728.3.