Service difficulty report · Light · Boeing 747422

Difficulty date
February 2, 2017
Submitted
February 3, 2017
Operation
Air carrier
Aircraft
N121UA
Make and model
Boeing 747422
Aircraft serial
29167
Aircraft time
72,033 hours, 8,129 cycles
Part
Light
Part number
S1356B37
Part serial
34900
Condition
Malfunctioned
Location
Cabin
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

TEST FOUND EMERGENCY LIGHT M8533 BATTERY LOW. REPLACED THE LIGHT AND TESTED GOOD IAW AMM 33-51-00-715-004, REV 182.