Service difficulty report · Tachometer · Robsin R44RAVENII

Difficulty date
October 10, 2019
Submitted
October 23, 2019
Operation
General aviation
Filed by
YV3R012M
Robinson Helicopter Company Inc
Make and model
Robsin R44RAVENII
Aircraft serial
14285
Aircraft time
5 hours
Engine
Lyc IO540AE1A5
Part
Tachometer
Part number
C7924
Part serial
7723
Condition
Sticking
Location
Dual
Part time
5 hours
Stage of operation
NR
How discovered
9
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

CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ROTOR RPM NEEDLE STICKS BETWEEN 70-80% INDICATED.