Service difficulty report · Power Supply · Boeing 747443

Difficulty date
April 6, 2026
Submitted
April 8, 2026
Operation
Air carrier
Aircraft
N482MC
Make and model
Boeing 747443
Aircraft serial
32340
Aircraft time
95,733 hours, 12,829 cycles
Part
Power Supply
Part number
BP573
Part serial
51311
Condition
No Test
Location
Zone 200
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 U/D EMERGENCY LIGHT (M5932) FUNCTION FAIL. REPLACED U/D EMERGENCY LIGHT (M5932) POWER SUPPLY IAW AMM 33-51-04-002-009-001 & AMM 33-51-04-402-012-001 REV 116. PERFORMED POWER SUPPLY INSTALLATION TEST IAW AMM 33-51-04-402-012-001 REV 116. THE RESULT WAS SATISFACTORY.