<< >> NASA ASRS Report 378270, August 1997

An air carrier MD80 flight crew got off course when they forgot to turn to intercept an inbound leg to fnt. The alert ARTCC controller corrected their error.

Attributes
ACN	378270
Time
Date	199708
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dkk
State Reference	NY
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Navigation In Use	Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 8000 flight time type : 1800
ASRS Report	378270
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance non adherence : far other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Proceeding on J36 wbound west of dkk VOR (dunkirk) approaching YXU30 which is 95 DME past dkk. At that point you make a right turn on J36 to fly the 105 degree radial to fnt. I missed the approximately 4 degree right turn and stayed on the 281 degree radial from dkk. ATC noticed the off course route when we were 10 mi south of the J36 airway. There was no conflict and we were given current heading to intercept J94 west of fnt. I attribute missing the turn largely due to the fact that our fleet has always naved using omega in the past. With the shutdown of some omega stations we are now told, on a flight by flight basis, whether we can use omega as a means of navigation. On our previous flight we used omega for navigation, but on this flight we could not. On autoplt with VOR navigation and the intersection at 95 DME, I simply missed the turn.

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Original NASA ASRS Text

Title: AN ACR MD80 FLC GOT OFF COURSE WHEN THEY FORGOT TO TURN TO INTERCEPT AN INBOUND LEG TO FNT. THE ALERT ARTCC CTLR CORRECTED THEIR ERROR.

Narrative: PROCEEDING ON J36 WBOUND W OF DKK VOR (DUNKIRK) APCHING YXU30 WHICH IS 95 DME PAST DKK. AT THAT POINT YOU MAKE A R TURN ON J36 TO FLY THE 105 DEG RADIAL TO FNT. I MISSED THE APPROX 4 DEG R TURN AND STAYED ON THE 281 DEG RADIAL FROM DKK. ATC NOTICED THE OFF COURSE RTE WHEN WE WERE 10 MI S OF THE J36 AIRWAY. THERE WAS NO CONFLICT AND WE WERE GIVEN CURRENT HEADING TO INTERCEPT J94 W OF FNT. I ATTRIBUTE MISSING THE TURN LARGELY DUE TO THE FACT THAT OUR FLEET HAS ALWAYS NAVED USING OMEGA IN THE PAST. WITH THE SHUTDOWN OF SOME OMEGA STATIONS WE ARE NOW TOLD, ON A FLT BY FLT BASIS, WHETHER WE CAN USE OMEGA AS A MEANS OF NAV. ON OUR PREVIOUS FLT WE USED OMEGA FOR NAV, BUT ON THIS FLT WE COULD NOT. ON AUTOPLT WITH VOR NAV AND THE INTXN AT 95 DME, I SIMPLY MISSED THE TURN.

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.