Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
September 25, 2017
Submitted
September 27, 2017
Operation
Air carrier
Aircraft
N471AS
Make and model
Boeing 737990ER
Aircraft serial
41703
Aircraft time
11,995 hours, 3,974 cycles
Part
Power Supply
Part number
D71702001
Condition
Failed
Location
Cabin
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FOUND AFT EMERGENCY OUTSIDE LIGHT INOP. GROUNDED - YES. REF WDM 33-51-14, NO 6VDC AT L732 AFT LT ESCAPE SLIDE EMERGENCY LIGHT. REPLACED M1673 EMERGENCY EXIT LIGHT BATTERY PACK, OPS NORMAL, REF AMM 33-51-06-960-805. EMERGENCY LIGHTS OPERATIONAL TEST GOOD, REF AMM TASK 33-51-00-710-801.