<< >> NASA ASRS Report 177787, April 1991

Widebody transport crew found themselves over a north atlantic fix on the track south of the track they were cleared to fly.

Attributes
ACN	177787
Time
Date	199104
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : zqm
State Reference	NB
Altitude	msl bound lower : 37000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody Transport
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : atlantic enroute airway : czqm
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Qualification	pilot : atp
Experience	flight time last 90 days : 70 flight time total : 5500 flight time type : 1000
ASRS Report	177787
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	faa : investigated
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was deadheading on flight from fra to phl, when I became aware through a discourse between the captain and first officer that they had flown off course. I stepped into the cockpit to check on our flight progress and while standing in the cockpit the second officer on duty asked me if I would monitor his panel while he stopped out to stretch his legs. I'm qualified and current in the position, so I agreed. Approximately 10 mins later, it was evident by conversation between the captain and the first officer that the last waypoint crossed was 1 track south of the track the crew was cleared to fly. The second officer, who was standing in the back of the cockpit, was then summoned back to his seat by the first officer and the 3 crew members began to reconstruct the events of the last several waypoints to determine the cause of the alleged navigation excursion. I monitored the second officer's panel between carpe (where the excursion occurred) and kalmm (where the crew was notified by monkton center).

Related reports:

• Medium large transport flight crew on visual into lax finds ...
• An light transport, along with 2 other non-reporting air car...
• Flight crew of atx small transport inadvertently tunes wrong...
• A glass cockpit widebody transport flight crew find themselv...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: WDB CREW FOUND THEMSELVES OVER A NORTH ATLANTIC FIX ON THE TRACK SOUTH OF THE TRACK THEY WERE CLEARED TO FLY.

Narrative: I WAS DEADHEADING ON FLT FROM FRA TO PHL, WHEN I BECAME AWARE THROUGH A DISCOURSE BTWN THE CAPT AND F/O THAT THEY HAD FLOWN OFF COURSE. I STEPPED INTO THE COCKPIT TO CHK ON OUR FLT PROGRESS AND WHILE STANDING IN THE COCKPIT THE S/O ON DUTY ASKED ME IF I WOULD MONITOR HIS PANEL WHILE HE STOPPED OUT TO STRETCH HIS LEGS. I'M QUALIFIED AND CURRENT IN THE POS, SO I AGREED. APPROX 10 MINS LATER, IT WAS EVIDENT BY CONVERSATION BTWN THE CAPT AND THE F/O THAT THE LAST WAYPOINT CROSSED WAS 1 TRACK S OF THE TRACK THE CREW WAS CLRED TO FLY. THE S/O, WHO WAS STANDING IN THE BACK OF THE COCKPIT, WAS THEN SUMMONED BACK TO HIS SEAT BY THE F/O AND THE 3 CREW MEMBERS BEGAN TO RECONSTRUCT THE EVENTS OF THE LAST SEVERAL WAYPOINTS TO DETERMINE THE CAUSE OF THE ALLEGED NAV EXCURSION. I MONITORED THE S/O'S PANEL BTWN CARPE (WHERE THE EXCURSION OCCURRED) AND KALMM (WHERE THE CREW WAS NOTIFIED BY MONKTON CENTER).

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.