Service difficulty report · Fastener · Boeing 777222

Difficulty date
May 7, 2013
Submitted
June 19, 2013
Operation
Air carrier
Aircraft
N794UA
Make and model
Boeing 777222
Aircraft serial
26953
Aircraft time
69,567 hours, 9,756 cycles
Engine
Pwa PW40903
Part
Fastener
Condition
Damaged
Location
Fan Cowl
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

RIGHT ENGINE FAN COWL SHOWS EVIDENCE OF LIGHTNING DISCHARGE. DAMAGE IS LOCATED AT THE 3:00 O'CLOCK POSITION AND IS LOCATED APPROX 5-8" FWD OF THE AFT EDGE, DAMAGE MEASURES 5-8" BY 5-8". REPLACED SCREW LOCATED AT THE AFT LOWER CORNER OF THE FAN COWL OPERATIONAL SWITCHES. DAMAGE FOUND TO BE TO THE SCREW ONLY.