Service difficulty report · Battery Pack · Boeing 747481

Difficulty date
May 3, 2019
Submitted
May 3, 2019
Operation
Air carrier
Aircraft
N263SG
Make and model
Boeing 747481
Aircraft serial
29263
Aircraft time
52,356 hours, 6,412 cycles
Part
Battery Pack
Part number
20131A
Part serial
75332
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 EMERGENCY LIGHT BATTERY PACK DEEP CYCLE FAIL AT M7915, M7919, M7920, M7922, AND M7924.(<P>REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACKS AT M7915, M7919, M7920, M7922, AND M7924 IAW AMM 33-51-04-902-001-001 REV. 95. PERFORMED POWER SUPPLY TEST AND THE RESULT WAS SATISFACTORY IAW AMM 33-51-04-902-001-001 REV.95 STEP E.</P><P><BR DATA-MCE-BOGUS="1" /></P><P>S/N(S) OFF: 35284, 90174, 106267, 102043</P>)