SDR ERAA086441

Service difficulty report · Bearing · Bell 412

Difficulty date
April 25, 2003
Submitted
May 27, 2003
Operation
Air carrier
Aircraft
N421EH
Make and model
Bell 412
Aircraft serial
33067
Aircraft time
13,870 hours
Part
Bearing
Part number
412010402111FM
Part serial
RE0142
Condition
Worn
Location
Swashplate
Part time
13,678 hours
Stage of operation
NR
How discovered
9
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

SWASHPLATE HAS WORN GIMBAL RING BEARINGS. NEARING O/H, GIMBAL BEARING WORN, BEARING COVER SCRAP. 2 SUPPORT BUSHINGS WORN, SWASHPLATE BEARING WORN. ACTION TAKEN: COMPLETELY DISASSEMBLED FOR OVERHAUL. COMPLIED WITH VISUAL & NDT INSEPCTIONS. REPLACED GIMBAL BOLTS BEARINGS, COVER, 2 SUPPORT BUSHINGS & SWASHPLATE BEARING. SENT PARTS OUT FOR PRIMER & PAINT. RE-TORQUE OUTER RING BOLTS IAW TB 412-84-40. REASSEMBLED NEW SEALS & HARDWARE. PURGE , LUBED BEARINGS.

More about the Bell 412