Service difficulty report · Dual Tachometer · Robsin R44

Difficulty date
September 11, 2020
Submitted
September 17, 2020
Operation
General aviation
Filed by
YV3R012M
Robinson Helicopter Company Inc
Make and model
Robsin R44
Aircraft serial
12153
Aircraft time
2,000 hours
Engine
Lyc IO540AE1A5
Part
Dual Tachometer
Part number
C7924
Part serial
1873
Condition
Defective
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 ASSEMBLY P/N: C792-4 ROTOR NEEDLE ERRATIC.