SDR IPXA2021071371603

Service difficulty report · Relay · Doug MD11F

Difficulty date: July 11, 2021
Submitted: July 13, 2021
Operation: Air carrier
Aircraft: N259UP
Make and model: Doug MD11F
Aircraft serial: 48417
Aircraft time: 87,398 hours, 18,320 cycles
System (JASC): 2430 · DC Generating System
Part: Relay
Condition: Faulted
Location: Sensing
Stage of operation: CR
How discovered: O
Nature of condition: 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/A1.6 HOURS AFTER TAKEOFF LEVEL 1 "BUS DC3 OFF" WITH NUMEROUS CONSEQUENTIAL ALERTS (SEL LSAS RIB OFF), CAWS FAULT, AP2 DISCONNECT DUE TO F/O'S FD FAIL LEVEL 2 FCC 2A DATA FAULT, YAW DMP UPR B OFF, AUTOPILOT SINGLE, SINGLE LAND, AVNCS FAN OVRDT/S LVEL 1 "BUS DC3 OFF" MESSAGE PER MD11 FRM 24-30-01, REPLACED DC3 SENSING RELAY R2-5153. NO FAULTS NOTED AT THIS TIME, ALL OTHER FAULTS LISTED ARE NOT PRESENT ESR AIPC 24-61-01-01 ITEM 10

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