SDR ERAA085161

Service difficulty report · Bearing · Bell 412

Difficulty date: February 18, 2003
Submitted: March 17, 2003
Operation: Air carrier
Aircraft: N419EH
Make and model: Bell 412
Aircraft time: 15,246 hours
System (JASC): 6420 · Tail Rotor Head
Part: Bearing
Condition: Rough
Location: Tail Rotor Head
Part time: 15,246 hours
Component: Tail Rotor Head
Component part number: 212011701121
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

TRUNNION FEELS ROUGH, PITCH HORN BUSHINGS & INBOARD BOLTS, NUTS & WASHERS MISSING. REMOVED TRUNNION, HOUSINGS, SCRAPPED TRUNNION & TRUNNION BEARINGS. INSTALLED NEW TRUNNION, BEARINGS & SEALS. REASSEMBLED, TORQUED, SAFTIED, MARVEL BALANCED IAW 412 CR&O &TB 412-95-134.

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