Service difficulty report · Battery · Textrn TEXTRON700

Difficulty date
January 9, 2023
Submitted
January 11, 2023
Operation
Air carrier
Aircraft
N824QS
Make and model
Textrn TEXTRON700
Aircraft serial
7000062
Aircraft time
1,414 hours, 813 cycles
Part
Battery
Part number
CBS281
Part serial
008163
Condition
Abnormal
Location
Zone 100
Stage of operation
TX
How discovered
C
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

EMERGENCY LIGHTING: DURING EMERGENCY LIGHT TEST ON A COLD PLANE, IN THE ON POSITION, THE EMERGENCY LIGHTS DO NOT COME ON. IN THE ARMED POSITION THE EMERGENCY LIGHTS COME ON. TOOK POWER COMPLETELY OFF THE PLANE, (RESET) AND NO CHANGE. // SIGNOFF// ON INITIAL OPS CHECK NOTED EMERGENCY LIGHTS OPERATING CORRECTLY IN ON POSITION AND ARMED POSITION. TIUED OPS CHECK AGAIN AND VERIFIED NO LIGHTS IN ON POSTION AND LIGHTS OPERATING IN ARM POSMON. CHECKED ALL 5G SWITCHES WITH NO CHANGE. GAINED ACCESS TO ALL FOUR EMERGENCY BATTERIES AND VERIFIED NO FUSES BLOWN. GAINED ACCESS TO EMERGENCY BATTERY RELAY AND VERIFIED OPERATION. REPOSITIONED EMERGENCY BATTERY 1AND 4 AND NOTED EMERGENCY UGHTS OPERATE AS INTENDED. REPOSMONED BATTERY 1 TO ORIGINAL LOCATION. REPLACEMENT FOR EMERGENCY BATTERY 4 ON ORDER. 1/10 REMOVED AND REPLACED EMERGECNY BATTERY FOUR WITH A CUSTOMER SUPPLIED REPAIRED UNIT. COMPLETED CHARGE OF EMERGNCY BATTERY AND COMPLETED OPS CHECK WITH NO DEFECTS NOTED. CLOSED ACCESS. WORK COMPLETED WITH REFERENCE TO CE700 AMM 33•50-05 AND 33·50-00,