Service difficulty report · Bearing · Bell 429

Difficulty date
April 17, 2026
Submitted
April 17, 2026
Operation
Air carrier
Aircraft
N712SL
Make and model
Bell 429
Aircraft serial
57374
Aircraft time
2,545 hours, 8,223 cycles
Part
Bearing
Part number
429310002103
Part serial
CB2331
Condition
Worn
Location
Main Rotor Head
Part time
2,545 hours
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

REQUESTED BY THE RAM TO INSPECT THE MRH SHEAR BEARINGS TO VERIFY TORQUE ON ATTACHING HARDWARE. FOUND THE BLUE BLADE SHEAR BEARING UPPER BOLT TO FAIL TORQUE CHECK, WITH THE BOLT ONLY BEING FINGER TIGHT. AFTER REMOVAL OF THE BOLT FOUND A SLIGHT STEP ON THE BOLT AND WEAR ON THE BOLT HOLE OF THE SHEAR BEARING.

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