Service difficulty report · Contact · Robsin R44RAVENII

Difficulty date
August 11, 2011
Submitted
August 12, 2011
Operation
Air carrier
Aircraft
N744AK
Make and model
Robsin R44RAVENII
Aircraft serial
10001
Part
Contact
Part number
10400507
Condition
Defective
Location
Rt Magneto
Component
Magneto
Component part number
56LSC204T
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

TACHOMETER CONTACT ASSY SEEMS TO HAVE BREAKDOWN IN INSULATION AND STARTING TO FAIL IN 200 HRS OR LESS. RESULTS IN UNWANTED POWER REDUCTION WHICH COULD RESULT IN LOSS OF ACFT AND LIFE.