Service difficulty report · Power Unit · Doug MD11F

Difficulty date
May 12, 2023
Submitted
May 15, 2023
Operation
Air carrier
Aircraft
N252UP
Make and model
Doug MD11F
Aircraft serial
48768
Aircraft time
63,986 hours, 15,179 cycles
Part
Power Unit
Part number
NA
Part serial
NA
Condition
No Test
Location
Emergency Power
Stage of operation
IN
How discovered
9
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

INSPECTION TYPE:NACREW REPORTED EMERGENCY POWER TEST FAIL ON PRE-FLIGHTFOUND BATTERY CHARGING WITH EMERGENCY POWER ON. FOUND CHARGER/BATTERY R2-24 X1 INTERNALLY SHORTED HOLDING RELAY IN CHARGE POSITION. REPLACED R2-29 PER MM 24-34-01. TESTS GOOD. ESR: EQUIP LIST R224

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