Service difficulty report · Plate · Urocop EC120B

Difficulty date
February 2, 2000
Submitted
April 7, 2000
Operation
Air carrier
Aircraft
N182TA
Make and model
Urocop EC120B
Aircraft serial
1001
Part
Plate
Part number
C822A1003101
Part serial
DA006
Condition
Separated
Location
Main Rotor
Part time
715 hours
Component
Main Rotor Hub · Urocop
Component part number
C822A1002100
Stage of operation
IN
How discovered
V
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

POST-FLIGHT DAILY INSPECTION REVEALED LOWER WEAR PLATE, SUPPORTING MAIN ROTOR DROOP RING, BOND BROKEN FROM SCISSOR DRIVE ASSEMBLY. WEAR PLATE WAS BENT AWAY FROM ITS BONDED POSITION AT THE SCISSOR DRIVE ASSEMBLY APPROX 25MM. POSSIBLE CAUSE: FAILURE OF ADHESIVE OR BONDING AGENT BETWEEN DROOP RING WEAR PLATE AND SCISSOR DRIVE ASSY. RECOMMENDATION TO PREVENT RECURRENCE: ENHANCE ADHESIVE QUALTIY AND/OR CONDITION OF BONDING. (X)

More about the Urocop EC120B