A track deviation and a loss of separation on the north american route system.

Attributes
ACN	568515
Time
Date	200212
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : czul.artcc
State Reference	PQ
Altitude	msl single value : 35000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : czul.artcc
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : czul.artcc
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	company : air carrier
Function	flight crew : relief pilot
Qualification	pilot : atp
ASRS Report	568515
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : company policies other spatial deviation
Independent Detector	other controllerb other flight crewb
Resolutory Action	none taken : anomaly accepted none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Rerte received while I (the relief pilot) was absent from the cockpit. When I returned, captain and first officer were discussing rerte and had a problem with the FMC. I looked up the new route in north american route, read it out to captain from relief pilot seat. Captain and first officer resolved problem. Captain left cockpit, I sat in captain's seat and assumed radio work. Captain called from cabin asking me to advise dispatch of rerte due to re-release over fix on prior route. While I was engaged in this activity, first officer handled aircraft and radio. When I came back, I took over radios. No calls were missed or inquiries made over pelee. First officer said 'why are we over pelee' and asked montreal if we were still on a radar vector. Montreal advised us of loss of separation via satcom. Captain had just returned and was not entirely briefed. He assumed we had a radar vector because that was what first officer had believed and advised the captain and myself. The 3 of us debriefed completely and the captain didn't take a call for the vector and I had received no call so it is my assumption that first officer failed to engage LNAV, unless first officer took call for vector and the fault was controller error.

Original NASA ASRS Text

Title: A TRACK DEV AND A LOSS OF SEPARATION ON THE NORTH AMERICAN RTE SYS.

Narrative: RERTE RECEIVED WHILE I (THE RELIEF PLT) WAS ABSENT FROM THE COCKPIT. WHEN I RETURNED, CAPT AND FO WERE DISCUSSING RERTE AND HAD A PROB WITH THE FMC. I LOOKED UP THE NEW RTE IN NORTH AMERICAN RTE, READ IT OUT TO CAPT FROM RELIEF PLT SEAT. CAPT AND FO RESOLVED PROB. CAPT LEFT COCKPIT, I SAT IN CAPT'S SEAT AND ASSUMED RADIO WORK. CAPT CALLED FROM CABIN ASKING ME TO ADVISE DISPATCH OF RERTE DUE TO RE-RELEASE OVER FIX ON PRIOR RTE. WHILE I WAS ENGAGED IN THIS ACTIVITY, FO HANDLED ACFT AND RADIO. WHEN I CAME BACK, I TOOK OVER RADIOS. NO CALLS WERE MISSED OR INQUIRIES MADE OVER PELEE. FO SAID 'WHY ARE WE OVER PELEE' AND ASKED MONTREAL IF WE WERE STILL ON A RADAR VECTOR. MONTREAL ADVISED US OF LOSS OF SEPARATION VIA SATCOM. CAPT HAD JUST RETURNED AND WAS NOT ENTIRELY BRIEFED. HE ASSUMED WE HAD A RADAR VECTOR BECAUSE THAT WAS WHAT FO HAD BELIEVED AND ADVISED THE CAPT AND MYSELF. THE 3 OF US DEBRIEFED COMPLETELY AND THE CAPT DIDN'T TAKE A CALL FOR THE VECTOR AND I HAD RECEIVED NO CALL SO IT IS MY ASSUMPTION THAT FO FAILED TO ENGAGE LNAV, UNLESS FO TOOK CALL FOR VECTOR AND THE FAULT WAS CTLR ERROR.

Data retrieved from NASA's ASRS site as of July 2007 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.