SDR IPXA2019053142670

Service difficulty report · Control Unit · Doug MD11F

Difficulty date: May 31, 2019
Submitted: May 31, 2019
Operation: Air carrier
Aircraft: N282UP
Make and model: Doug MD11F
Aircraft serial: 48452
Aircraft time: 85,146 hours, 15,757 cycles
System (JASC): 2420 · AC Generation System
Part: Control Unit
Condition: Malfunctioned
Location: Electrical Sys
Stage of operation: CR
How discovered: O
Nature of condition: H, J
Precautionary procedure: O

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

What was found

INSPECTION TYPE:N/A **AIR TURN BACK** WHILE IN CRUISE, WE GOT MULTIPLE LEVEL 1 ALERTS GEN 1,2,3 OFF THAT LASTED FOR ONE SECOND THEN WOULD GO BACK NORMAL. WE CYCLED THE SYSTEM CONTROLLER WITH NO CHANGE. R/R EPCU ASSY AS PER AMM 24-08-01/401. PERFORMED EPCU RTS AS PER AMM24-08-01/501. TEST PASS WITH NO RELATED FAULT MSG NOTED. PERFORMED #1, #2 AND #3 ENGINE RUN AS PER AMM71-00-00. ALL PARAMETERS NORMAL.

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