SDR DXTA2026092309808

Service difficulty report · Battery · Emb EMB505

Difficulty date: September 20, 2026
Submitted: September 23, 2026
Operation: Air carrier
Aircraft: N453QS
Make and model: Emb EMB505
Aircraft serial: 50500683
Aircraft time: 4,276 hours, 3,363 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery
Part number: 7450LS00
Part serial: 005365
Condition: Defective
Location: Zone 200
Stage of operation: CR
How discovered: V
Nature of condition: O
Precautionary procedure: O

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

What was found

WHILE ESTABLISHED IN CRUISE AT 41,000 FT, THE CABIN ENERGENCY LIGHTS ILLUMINATED. AFTER THEY TIMED OUT, THEY ILLUMINATED AGAIN. THIS PROCESS REPEATED THROUGHOUT THE FLIGHT. CORRECTIVE ACTION: REPLACED BATTERIES. OPS CHECK GOOD. IAW EMB505 MM 33-52-01

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