Service difficulty report · Battery Pack · Boeing 737990ER

Difficulty date
November 22, 2021
Submitted
November 30, 2021
Operation
Air carrier
Aircraft
N467AS
Make and model
Boeing 737990ER
Aircraft serial
36362
Aircraft time
27,451 hours, 8,909 cycles
Engine
Ge CFM56*
Part
Battery Pack
Part number
D71701100
Condition
Inoperative
Location
Main Cabin
Stage of operation
IN
How discovered
C
Nature of condition
O
Precautionary procedure
K

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

What was found

EMERGENCY LIGHTS COMMON TO POWER SUPPLY M1670, M1671, AND M1672 FAILED OPERATIONAL TEST. GROUNDED - YES. REPLACED ALL 3 BATTERIES & M1670 &M1671 CHARGERS,OPS CHECKS GOOD.CLOSED AIRGRILLES AT M1670 & M1671.B737-900 AMM 33-51-06 & 21-23-03 ODR EMAIL SENT.