SDR IPXA2015121596742

Service difficulty report · Fmc · Boeing 76734AF

Difficulty date: December 14, 2015
Submitted: December 16, 2015
Operation: Air carrier
Aircraft: N330UP
Make and model: Boeing 76734AF
Aircraft serial: 27756
Aircraft time: 45,252 hours, 14,451 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Failed
Location: Cockpit
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:ETOP, AIR TURNBACK DUE TO RT FMC FAIL, EICAS CANT DNL EICAS DISPLAY, RT IRS ON DC F/O RMI FAIL, LOWER EICAS BLANK F/O FLT DIR, MAP AND VTR, VOR/ DME FOUND C/B C307, 115VAC BUS RT SECT 2 IN P6 PANEL POP. RAN BOTH ENGINES AND BITE CK BPCU NO FAULTS FOUND. PARTS ON ORDER REF REQ E146509 FC, 1071953. C/W ITEM T169552, 5OOV & 1KV MEG OHMED HARNESS TO GROUND AND TO EACH OTHER AT A2-B2-C2, ALL SHOW 999M OHMS. R & R C/B C307 OPS. GOOD AT THIS TIME.

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