SDR IPXA2024041862457

Service difficulty report · Control Unit · Doug MD11F

Difficulty date: April 18, 2024
Submitted: April 18, 2024
Operation: Air carrier
Aircraft: N289UP
Make and model: Doug MD11F
Aircraft serial: 48455
Aircraft time: 106,091 hours, 21,211 cycles
System (JASC): 2400 · Electrical Power System
Part: Control Unit
Part number: UNKNOWN
Condition: Failed
Location: Electrical
Stage of operation: TX
How discovered: 9
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

BLOCK TURN-BACK AT 0829 DUE MECHANICAL. ON APU POWER JUST PRIOR TO ENGINE START ALL ELEC,EXCEPT STANDBY POWER, LOST WITH EXTERNAL POWER RECONNECTED POWER RESTORED, APU POWER AS WELL. REPLACED EPCU IAW MM 24-08-01/401, OPS CHECK NORMAL.

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