Service difficulty report · Battery Pack · Boeing 74747UF

Difficulty date
February 3, 2019
Submitted
February 5, 2019
Operation
Air carrier
Aircraft
N412MC
Make and model
Boeing 74747UF
Aircraft serial
30559
Aircraft time
76,658 hours, 12,397 cycles
Part
Battery Pack
Part number
20131A
Part serial
11029787009
Condition
No Test
Location
Emergency Lights
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 POWER SUPPLY EMERGENCY LIGHT M5170,M5168 CAPACITIY FUNCTION NOT GOOD.(<P>1.IAW AMM 33-51-04-902-001-001 REV.94 REPLACED EMERGENCY LIGHTS SUPPLY BATTERIES M5170,M5168 AND CONDTION CHECK NORMAL 2.I.A.W. AMM 33-51-04-902-001-001 REV.94 STEP 3.E PERFORMED POER SUPPLY TEST AND THE RESULT SATISFACTORY.</P>)

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