Service difficulty report · Tachometer · Robsin R44RAVENII

Difficulty date
April 29, 2020
Submitted
May 20, 2020
Operation
General aviation
Aircraft
N63BK
Make and model
Robsin R44RAVENII
Aircraft serial
12602
Aircraft time
307 hours
Engine
Lyc IO540AE1A5
Part
Tachometer
Part number
C7924
Part serial
2704
Condition
Erratic
Part time
306 hours
Stage of operation
NR
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

CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 MAIN ROTOR RPM NEEDLE WAS ERRATIC.