SDR UIEA2012082000366

Service difficulty report · Control Unit · Boeing 74787UF

Difficulty date: August 20, 2012
Submitted: August 21, 2012
Operation: Air carrier
Aircraft: N850GT
Make and model: Boeing 74787UF
Aircraft serial: 37562
Aircraft time: 1,089 hours, 184 cycles
System (JASC): 2400 · Electrical Power System
Part: Control Unit
Part number: 1713671
Part serial: AAKH000106
Condition: Failed
Part time: 1,089 hours, 184 cycles
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

IN FLIGHT, RECEIVED "HYD PRESS 3", "GPS LEFT", "IRS MOTION", "IRS DC RIGHT";"IRS AC RIGHT", "YAW DAMPER UPPER", "ADC CENTER", AND "NO AUTOLAND"; EICAS MESSAGES. RETURNED TO DEPARTURE. R & R NR 2 BCU, OPS CHECKED GOOD IAW AMM 24-23-01 AND ALL MESSAGES CLEARED.

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