Flight crew of an MD80 were given vector to get back on course after ATC intervened to inform them that they were heading for a restr area and 3 mi off course. Both of their VOR indicators were showing on course.

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Attributes
ACN	372950
Time
Date	199707
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : gbn
State Reference	AZ
Altitude	msl bound lower : 33000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 210 flight time total : 18000 flight time type : 3500
ASRS Report	372950
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : less severe non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

While leveling at FL330, ZAB told us to turn left to heading 060 degrees to avoid restr airspace. Our vors (both) showed on centerline. I advised abq of this and he indicated that we were 3 mi right of course. I have no idea as to how to correct this problem as both instruments agreed with our being on course. I entered a maintenance write-up regarding above in aircraft logbook.

Original NASA ASRS Text

Title: FLC OF AN MD80 WERE GIVEN VECTOR TO GET BACK ON COURSE AFTER ATC INTERVENED TO INFORM THEM THAT THEY WERE HEADING FOR A RESTR AREA AND 3 MI OFF COURSE. BOTH OF THEIR VOR INDICATORS WERE SHOWING ON COURSE.

Narrative: WHILE LEVELING AT FL330, ZAB TOLD US TO TURN L TO HDG 060 DEGS TO AVOID RESTR AIRSPACE. OUR VORS (BOTH) SHOWED ON CTRLINE. I ADVISED ABQ OF THIS AND HE INDICATED THAT WE WERE 3 MI R OF COURSE. I HAVE NO IDEA AS TO HOW TO CORRECT THIS PROB AS BOTH INSTS AGREED WITH OUR BEING ON COURSE. I ENTERED A MAINT WRITE-UP REGARDING ABOVE IN ACFT LOGBOOK.

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.