Service difficulty report · Dual Tachometer · Robsin R44

Difficulty date
November 13, 2020
Submitted
November 18, 2020
Operation
General aviation
Filed by
YV3R012M
Robinson Helicopter Company Inc
Make and model
Robsin R44
Aircraft serial
2563
Aircraft time
445 hours
Engine
Lyc O540F1B5
Part
Dual Tachometer
Part number
C7924
Part serial
7710
Condition
Defective
Part time
445 hours
Stage of operation
NR
How discovered
9
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 ASSEMBLY P/N: C792-4 ROTOR NEEDLE STUCK INTERMITTENTLY.