Service difficulty report · Battery Pack · Boeing 74746NF

Difficulty date
February 6, 2020
Submitted
February 13, 2020
Operation
Air carrier
Aircraft
N454PA
Make and model
Boeing 74746NF
Aircraft serial
30812
Aircraft time
74,507 hours, 12,365 cycles
Part
Battery Pack
Part number
BPS73
Part serial
TLS24541
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

TEST FAIL: FOUND EMERGENCY BATTERY PACK M5168 CAN NOT STAY ON 15 MINS.(<P>1) IAW AMM 33-51-04-002-009-001 REV 97, REMOVED EMERGENCY BATTERY POWER PACK ASSY M5168.</P><P>2) IAW AMM 33-51-04-402-012-001 REV 97, INSTALLED EMERGENCY BATTERY POWER PACK ASSY M5168.</P><P>3) IAW AMM 33-51-04-402-012-001 REV 97, STEP D PERFORMED POWER SUPPLY TEST AND THE RESULT WAS SATISFACTORY.</P>)

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