Service difficulty report · Battery Pack · Bombdr BD1001A10

Difficulty date
February 23, 2026
Submitted
February 24, 2026
Operation
Air carrier
Aircraft
N771QS
Make and model
Bombdr BD1001A10
Aircraft serial
20766
Aircraft time
8,201 hours, 4,710 cycles
Part
Battery Pack
Part number
BR9767001
Part serial
C1556
Condition
Faulted
Location
Zone 200
Stage of operation
NR
How discovered
O
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 LIGHT OVER SEAT 2L INOP. LIGHT OPERATES WITH CABLTS BUT NOT IN EMER LIGHTS ON POSITION. OPERATED ONCE AFTER TURNING EMER LTS ON - OFF THEN BACK ON. NOW DOES NOT OPERATE IN EMER LTS ON. MAY BE INTERMITTENT. CORRECTIVE ACTION: REMOVED SUSPECTED EBPS PN: BR9767-001 SN: C1556 AND REPLACED WITH CUSTOMER SUPPLIED NEW POWER SUPPLY PN: BR9767-001 SN: C2778. OPS CHECKS GOOD NO DEFECTS NOTED. REF CL350 SMM 33-50-00