Service difficulty report · Bearing · Boeing 1072

Difficulty date
January 18, 2018
Submitted
January 23, 2018
Operation
Air carrier
Aircraft
N6675D
Make and model
Boeing 1072
Aircraft serial
5
Aircraft time
66,190 hours
Part
Bearing
Part number
A02RS2522
Part serial
C1P0177
Condition
Galled
Location
Aft Rotor Head
Part time
2,490 hours
Stage of operation
IN
How discovered
V
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

AFT ROTOR HUB WAS REMOVED. ON DISASSEMBLY IT WAS REVEALED THAT THE YELLOW LAG BEARING WAS GALLED.