Service difficulty report · Battery Pack · Emb EMB505

Difficulty date
September 6, 2026
Submitted
September 8, 2026
Operation
Air carrier
Aircraft
N477QS
Make and model
Emb EMB505
Aircraft serial
50500799
Aircraft time
2,453 hours, 1,963 cycles
Part
Battery Pack
Part number
7450LS00
Part serial
005186
Condition
Inoperative
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

WITH THE EMERGENCY LIGHT SWITCH SELECTED TO THE ARM POSITION THE EMERGENCY LIGHTS REMAIN ON UNTIL THE SWITCH IS SELECTED BACK TO THE OFF POSITION CORRECTIVE ACTION: REMOVED FWD EMERGENCY LIGHTS BATTERY AND INSTALLED CUSTOMER SUPPLIED REPAIRED BATTERY IAW AMM 33-52-01. PERFORMED OP'S CHECK. OP'S CHECK GOOD, NO DEFECTS NOTED,

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