Service difficulty report · Ball Screw · Boeing 737*

Difficulty date
March 21, 2006
Submitted
April 17, 2006
Operation
General aviation
Make and model
Boeing 737*
Part
Ball Screw
Part number
07322P11070
Part serial
778A
Condition
Fod
Location
Stabilizer
Component
Ballscrew
Component part number
07322P00002
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

FOREIGH OBJECT DAMAGE DISCOVERED DURING INSPECTION OF BALLSCREW ASSY BY SUBCONTRACTOR. THE MAJOR COMPONENTS ARE BEYOND ECONOMIC REPAIR (SCRAP). THE DAMAGE WAS CAUSED BY A FOREIGN OBJECT, PROBABLY LOOSE BALL. THIS CAN HAPPEN ANYTIME THE BALLNUT ASSY IS REMOVED FROM THE SCREWSHAFT. (K)