Service difficulty report · Bolt · Boeing 747451

Difficulty date
January 19, 2013
Submitted
February 8, 2013
Operation
Air carrier
Aircraft
N105UA
Make and model
Boeing 747451
Aircraft serial
26473
Aircraft time
76,250 hours, 8,962 cycles
Engine
Pwa PW4056
Part
Bolt
Condition
Sheared
Location
Windshield Wiper
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

CAPTAIN'S WINDSHIELD WIPER NOT SEATED PROPERLY, VIBRATES. CHECKED AND FOUND WIPER ATTACHED BOLTS CORRODED AND SHEARED. NEW BOLTS INSTALLED IAW AMM. CAPTAINS WIPER OPERATION CHECKED NORMAL.