Service difficulty report · Ballscrew · Boeing 747428

Difficulty date
February 17, 2017
Submitted
May 20, 2017
Operation
Air carrier
Aircraft
N919CA
Make and model
Boeing 747428
Aircraft serial
25302
Aircraft time
89,251 hours, 13,055 cycles
Part
Ballscrew
Part number
65B8056237
Part serial
6564
Condition
Brinelled
Location
Horiz Stab
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

DURING INSPECTION REQUIRED BY AD 2006-10-02 FOUND HORIZONTAL STABILIZER BALLSCREW TO HAVE INDICATIONS OF BRENELLING IN THE NEUTRAL ZONE AREA OF THE BALLSCREW THREADS. REMOVED AND REPLACED HORIZONTAL STABILIZER BALLSCREW IN ACCORDANCE WITH AIRCRAFT MAINTENANCE MANUAL CHAPTER 27-41-06.