Service difficulty report · Power Supply · Boeing 737990

Difficulty date
December 2, 2017
Submitted
December 4, 2017
Operation
Air carrier
Aircraft
N317AS
Make and model
Boeing 737990
Aircraft serial
30856
Aircraft time
52,074 hours, 20,409 cycles
Part
Power Supply
Part number
D71702001
Condition
Failed
Location
Emergency Lights
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

EMERGENCY EXIT AREA LIGHTS AT ROWS 28DEF AND ROW 30 DEF ARE INOP. RELAMPED-NO HELP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY EXIT AREA LIGHTS POWER SUPPLY FOR ROWS 28DEF AND ROW 30 DEF. REF B737-900 AMM 33-51-06-960-806. OPS CHECK GOOD. SYSTEM RETURNED TO SERVICE.