A B777-200 flight crew suffered the partial loss of one amis (aircraft management information system...

Attributes
ACN	1060560
Time
Date	201301
Local Time Of Day	1801-2400
Place
Locale Reference	CZQX.ARTCC
State Reference	NF
Environment
Light	Night
Aircraft 1
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter Weather / Turbulence

Narrative:

About 3:30 into flight at approximately N60/W30 we lost both autopilots and all FMS displays went blank. The ecl [electronic check list] for landing elevation unknown appeared and we complied with this short checklist. This was not the problem. We got one autopilot working and both fmss came back on so we reloaded the flight plan and [when complete] were a maximum of 5 NM to the right of course. We aggressively returned to course while we used satcom to call maintenance control and operations. Maintenance advised they had already noted that we appeared to have lost our aims [integrated airplane information management system] which controlled all/most of the lost items. I determined we were safely flying and navigating [well enough] to continue the mission. Gander SELCAL'd us and asked for a position report as one of the many things we lost was the cpdlc. We explained we were experiencing minor electrical problems and to please give us one minute to compile and provide the report.

Original NASA ASRS Text

Title: A B777-200 flight crew suffered the partial loss of one AMIS (Aircraft Management Information System) enroute over the Atlantic and a minor track deviation resulted before they could re-establish navigation and control functions.

Narrative: About 3:30 into flight at approximately N60/W30 we lost both autopilots and all FMS displays went blank. The ECL [Electronic Check List] for LANDING ELEVATION UNKNOWN appeared and we complied with this short checklist. This was NOT the problem. We got one autopilot working and both FMSs came back on so we reloaded the flight plan and [when complete] were a maximum of 5 NM to the right of course. We aggressively returned to course while we used SATCOM to call Maintenance Control and Operations. Maintenance advised they had already noted that we appeared to have lost our AIMS [integrated Airplane Information Management System] which controlled all/most of the lost items. I determined we were safely flying and navigating [well enough] to continue the mission. Gander SELCAL'd us and asked for a position report as one of the many things we lost was the CPDLC. We explained we were experiencing MINOR electrical problems and to please give us one minute to compile and provide the report.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A B777-200 flight crew suffered the partial loss of one amis (aircraft management information system) enroute over the atlantic and a minor track deviation resulted before they could re-establish navigation and control functions.