SDR ERAA082940

Service difficulty report · Bearing · Bell 412

Difficulty date: January 3, 2003
Submitted: January 14, 2003
Operation: Air carrier
Aircraft: N415EH
Make and model: Bell 412
Aircraft serial: 33009
Aircraft time: 16,391 hours
System (JASC): 6420 · Tail Rotor Head
Part: Bearing
Condition: Worn
Location: Tail Rotor
Part time: 307 hours
Component: Rotor Head
Component part number: 212011701121
Stage of operation: IN
How discovered: 9
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

FEATHER BEARINGS WORN. FOUND FEATHER BEARINGS ARE IN LIMITS, TRUNNION LOOSE. RE SHIMMED TRUNNION, COMPLIED WITH TRUNNION CENTERING IAW 412 CR&O. INSPECTED T/R BLADES, CLEANED AND WAXED. INSPECTED FEATHER BEARINGS. FOUND TO BE IN LIMITS. REASSEMBLED T/R ASSY, MARVEL BALANCED AND TORQUED IAW 412 CR&O.

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