SDR 96ZZZX4644

Service difficulty report · Bearing · Bell 206L1

Difficulty date: July 5, 1996
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N5759M
Make and model: Bell 206L1
Aircraft serial: 45555
System (JASC): 6320 · Main Rotor Gearbox
Part: Bearing
Part number: 206040032011
Condition: Failed
Location: M/R Xmsn
Part time: 12,948 hours
Component: 206040004111
Stage of operation: IN
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

LOWER DUPLEX BEARING BAD. CONTAMINATED TRANSMISSION, DAMAGING OIL PUMP, AND GEARSHAFT ROLLER BEARING. TRANSMISSION COMPLETELY TORN DOWN, INSPECTED, CLEANED, AND REASSEMBLED. TSO: 702.5 HOURS TOTAL TIME OF DEFECTIVE DUPLEX BEARING. 702.5 HOURS AND 9 MONTHS SINCE NEW.

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