SDR 95FDEA01747

Service difficulty report · Shunt Mount · Doug MD11F

Difficulty date: November 8, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N609FE
Make and model: Doug MD11F
Aircraft serial: 48549
System (JASC): 2432 · Battery/Charger System
Part: Shunt Mount
Part number: AAN7214501
Condition: Melted
Location: Lt Emer Dc Bus
Stage of operation: IN
Nature of condition: L
Precautionary procedure: O

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

What was found

EMERGENCY POWER TEST WOULD NOT PASS. FOUND BATTERY AMMETER SHUNT S4-1, MOUNT HAD MELTED WHERE SHUNT IS ATTACHED TO THE L EMERGENCY DC BUS FEED RCCB, B1-189. R EPLACED BATTERY EQUIPMENT PANEL AND F/C OK PER MM 21-34-00. ALSO, EPCU R-T-S TEST PASSED PER MM 24-08-01.

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