Service difficulty report · Battery · 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
Part number
20131A
Part serial
12317
Condition
Failed
Location
Cabin
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

RQST DISCONNECT ALL OF EMERGENCY LIGHT POWER PACK. (<P>REMOVED CABIN EMERGENCY LIGHT POWER PACK BATTERIES IAW AMM 33-51-04-902-001-001 REV.95 STEP D. INSTALLED CABIN EMERGENCY LIGHT POWER PACK BATTERIES IAW AMM 33-51-04-902-001-001 REV.95, PER STEP E PERFORMED TEST AND FOUND 3 BATTERIES FAIL. TESTED AND REPLACED BATTERIES AND THE RESULT WAS SATISFACTORY IAW AMM 33-51-04-902-001-001 REV. 95.</P><P><BR /></P><P>S/N OFF: TLS 23998, 96723</P>)