Service difficulty report · Battery · Emb EMB505

Difficulty date
April 22, 2026
Submitted
April 24, 2026
Operation
Air carrier
Aircraft
N420QS
Make and model
Emb EMB505
Aircraft serial
50500462
Aircraft time
7,408 hours, 5,795 cycles
Part
Battery
Part number
7450LS00
Part serial
007372
Condition
Faulty
Location
Zone 200
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

DURING FLIGHT THE EMERGENCY LIGHTS TURNED ON AND STAYED ON. CORRECTIVE ACTION: REMOVED AND REPLACED EMERGENCY LIGHT BATTERY #1 WITH A REPAIRED UNIT AND EMERGENCY LIGHT BATTERY #2 / WITH A TESTED UNIT. PERFORMED OPS CHECKS WITH SATISFACTORY RESULTS. ALLOWED BATTERIES TO TOP CHARGE POST OPS CHECKS. REF. AMM 33-52-01.

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