Narrative:

Both vors were erratic -- needles would swing left approximately 1 DOT deflection then swing right approximately 1 DOT. We showed that we were at the intersection and turned to get on the new airway. ATC called and stated we were 12 mi off course. We advised them of the VOR problems and made a maintenance logbook write-up when we landed in mem. Supplemental information from acn 429285: both vors were centered on the hvq 079 degree radial. Later in the flight, 2 other controllers said we were off course. Both vors in our 30 yr old jet were consistently erratic and unstable.

Google
 

Original NASA ASRS Text

Title: A DC9 IS RPTED TO BE 14 MI E OF THE ASSIGNED AIRWAY, J6, 125 MI FROM HVQ VOR, SUPPOSEDLY ON THE 079 DEG RADIAL.

Narrative: BOTH VORS WERE ERRATIC -- NEEDLES WOULD SWING L APPROX 1 DOT DEFLECTION THEN SWING R APPROX 1 DOT. WE SHOWED THAT WE WERE AT THE INTXN AND TURNED TO GET ON THE NEW AIRWAY. ATC CALLED AND STATED WE WERE 12 MI OFF COURSE. WE ADVISED THEM OF THE VOR PROBS AND MADE A MAINT LOGBOOK WRITE-UP WHEN WE LANDED IN MEM. SUPPLEMENTAL INFO FROM ACN 429285: BOTH VORS WERE CTRED ON THE HVQ 079 DEG RADIAL. LATER IN THE FLT, 2 OTHER CTLRS SAID WE WERE OFF COURSE. BOTH VORS IN OUR 30 YR OLD JET WERE CONSISTENTLY ERRATIC AND UNSTABLE.

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.