Service difficulty report · Rotor Head · Robsin R44

Difficulty date
December 2, 2003
Submitted
March 1, 2004
Operation
General aviation
Make and model
Robsin R44
Aircraft time
649 hours
Engine
Lyc O540F1B5
Part
Rotor Head
Part number
D0621
Condition
Inoperative
Location
Tail Rotor
Stage of operation
IN
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

(CAN) UPON RECEIPT OF AD2003-24-51 HELICOPTER WAS INSPECTED FOR THE SUSPECT NAS6605-31BOLTS. EVEN THOUGH THE R44 S/N WAS NOT LISTED IN THE AD OR ROBINSON HELICOPTER SERVICE BULLETIN 51 THE T/R HUB NAS6605-31BOLTS WERE FOUND TO HAVE THE VENDOR IDENTIFICATION MARKING 01D0. THE BOLTS WERE REPLACED AND THE A/C RETURNED TO SERVICE.