Service difficulty report · Battery Pack · Textrn TEXTRON700

Difficulty date
August 17, 2025
Submitted
August 19, 2025
Operation
Air carrier
Aircraft
N866QS
Make and model
Textrn TEXTRON700
Aircraft serial
7000118
Aircraft time
1,536 hours, 956 cycles
Part
Battery Pack
Part number
CBS281
Part serial
009507
Condition
No Test
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

EMER LIGHTS WOULD NOT TURN ON IN THE "ARM" POSITION. WE RAN THE CHARGING PROCEDURE IN THE QRH AND THEY THEN OPS CHECKED GOOD. WE DID A SHORT FLIGHT AND CHECKED THEM AGAIN AND THEY DID NOT ILLUMINATE. RAN THE CHARGING PROCEDURE AGAIN AND THEY DID NOT TURN ON. CORRECTIVE ACTION: R&R THE TWO FWD EMERGENEY LIGHT BATTERIES, DUE TO THEM NOT HOLDING CHARGE. PERFORMED OPERATIONAL CHECK OF THE EMERGENCY LIGHTS AND ALL CHECKS GOOD. WORK DONE IAW CE-700 AMM CH. 33-50-07.