Service difficulty report · Bearing · Hughes 369

Difficulty date
October 9, 2024
Submitted
October 9, 2024
Operation
General aviation
Make and model
Hughes 369
Part
Bearing
Part number
369F51491
Condition
Wrong Part
Location
M/R Transmission
Stage of operation
NR
How discovered
V
Nature of condition
W
Precautionary procedure
O

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

What was found

WHILE INSTALLING X4 'OVERHAULED' ACCESSORY BEARINGS ONTO ACCESSORY SHAFT, ENGINEER NOTICED THE ID OF X2 BEARINGS WERE SIGNIFICANTLY SMALLER THAN THE ID OF THE OTHER 2 BEARINGS. X4 ACCESSORY BEARINGS P/N: 369F5149-1 SENT TO PAS MRO FOR OVERHAUL ON JOB/40834 (JSPO18280). BEARINGS RECEIVED AND BATCHED IN (OAL/035265) AS OH CONDITION. HOWEVER, THE CERTS RECEIVED STATE THEY ARE INSPECTED (WHICH IS UNUSUAL AS PAS MRO NORMALLY RETURN BEARINGS AND THE CERT SHOWS THEM AS OVERHAULED). ADDITIONALLY ONE OF THE BEARINGS WITH THE CORRECT ID. DOESNT SEEM TO HAVE HAD ANY REPAIR CARRIED OUT. IT FEELS ROUGH/NOTCHY, AND WOULD NOT PASS INSPECTION.

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