SDR 99ZZZX3888

Service difficulty report · Bushing · Urocop EC120B

Difficulty date
September 14, 1999
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N120TX
Make and model
Urocop EC120B
Aircraft serial
1029
Part
Bushing
Part number
C55151101051
Condition
Loose
Location
Lt Horiz Stab
Part time
40 hours
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

DAILY INSPECTION REVEALED LEFT SUPPORT BUSHING WAS BROKEN AWAY FOR ITS FIXED COMPOSITE POSITION WITHIN THE HORIZONTAL STABILIZER. NO OTHER DAMAGE WAS FOUND AT EITHER OF THE STABILIZER MOUNT BRACKETS TO THE TAILBOOM, LT AND RT SIDES. NEW SERVICEABLE STABILIZER INSTALLED. FENESTRON WAS BALANCE CHECKED AT 100 PERCENT FPOG - OUT OF TOLERANCE. TIPS - BALANCED TO .1 IPS. POSSIBLE CAUSE FOR THE COMPOSITE FAILURE IS SUSPECT TO POOR COMPOSITE ADHESION AND WORKMANSHIP. RECOMMENDATION FOR ENHANCEMENT: INSTALL LIKE RIVETED PLATE TO LOWER BUSHING STABILIZER INTERFACE AS THE TOP (LT AND RT SIDES).

More about the Urocop EC120B