Service difficulty report · Battery · Doug MD9030

Difficulty date
January 29, 2019
Submitted
January 30, 2019
Operation
Air carrier
Aircraft
N919DN
Make and model
Doug MD9030
Aircraft serial
53576
Aircraft time
44,290 hours, 21,119 cycles
Part
Battery
Condition
Thermal Runaway
Location
Main
Stage of operation
IN
How discovered
O
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

FOUND BOTH SHIP BATTERIES THERMAL RUNAWAY & BATT CABLES INSULATION MELTED. BATTERIES REMOVED FROM A/C. ROUTED BATT WIRES P48B2 AND P49B2. TERMINATED AND INSTALLED ENDS AT LEFT AND RIGHT BATTERIES. TERMINATED CENTER BATTERY CONNECTOR PER SWPM 20-00-16 & WDM 24-31-00. WIRES REPLACED WITH BMS13-58T1C1G2 AS ENGINEERING APPROVED REPAIR BY ERA 575010 PER PS 900-5-1, NR 04. REMOVED AND REPLACED A/C BATTERY SET AND TEST OK PER AMM 24-34-01/401. OK FOR SERVICE.

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