Service difficulty report · Bearing · Robsin R44

Difficulty date
March 22, 2023
Submitted
March 22, 2023
Operation
General aviation
Aircraft
N839RM
Make and model
Robsin R44
Aircraft serial
2327
Aircraft time
1,317 hours
Part
Bearing
Part number
C64712REVZ
Part serial
H124252
Condition
Rough
Part time
1,317 hours
Component
Swashplate
Component part number
C0176REVAD
Stage of operation
NR
How discovered
O
Nature of condition
P
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FOUND ROUGH FEELING SWASHPLATE BEARING. THIS BEARING HAS A LIMITED LIFE LIMIT, BUT IS NEVER TO BE INSPECTED FOR ROUGHNESS. 100 HR/ ANNUAL INSPECTION PROCESS DOES NOT CALL FOR THE REMOVAL OF HARDWARE TO CHECK SWASHPLATE AT ANY HOUR/DATE INTERVAL.

ROBINSON DOES GIVE A PROCEDURE TO SERVICE THIS PROCEDURE WHERE IT IS MENTIONED THAT NO ROUGHNESS IS ALLOWED IN THE BEARING. THE SERVICING PROCEDURE IN THIS MM IS NOT LISTED TO BE COMPLETE AT ANY PARTICULAR TIME, EITHER. ITS JUST A PROCEDURE ONE CAN FOLLOW IF THEY EVER SO DESIRE.