Service difficulty report · Housing · Boeing 234

Difficulty date
September 21, 2018
Submitted
December 31, 2018
Operation
Air carrier
Aircraft
N246CH
Make and model
Boeing 234
Aircraft serial
MJ017
Aircraft time
17,651 hours
Part
Housing
Part number
145R207511
Part serial
C1E0003
Condition
Cracked
Location
Rotor Head
Part time
3,040 hours
Component
Rotor Head · Boeing
Component part number
414R200118
Stage of operation
IN
How discovered
U
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

WHILE UNDERGOING SCHEDULED MAINTENANCE, UT INSPECTION OF FORWARD PITCH HOUSING ASSEMBLY DISCLOSED A REJECT-ABLE INDICATION OF THE UPPER VERTICAL BEARING LINER BORE. CONFIRMED INDICATION PITCH HOUSING P/N 145R2075-11, S/N C1E0003 HAS BEEN REMOVED FROM SERVICE AND IS QUARANTINED IN BCRC LOCATION. FORWARD ROTOR HEAD WAS RE-ASSEMBLED WITH SERVICEABLE YELLOW PITH HOUSING AND RETURNED TO SERVICE.

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