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Heading deviation on airways. PF, first officer, set wrong course on the VOR after passing a fix. Reporter captain failed to check the course set on the first officer VOR. ATC intervened and gave flight crew a direct course to next point.
| Attributes | |
| ACN | 344910 |
| Time | |
| Date | 199608 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bil |
| State Reference | MT |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc tower : cid |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 344910 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 345115 |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Our flight plan called for J34 hln. However, upon crossing bil, the first officer, who was flying the aircraft, inadvertently set the course for J16, a difference of 16 degrees. This was the route we had flown on a previous trip. I set J34 on my VOR, noticed the first officer had set his, but failed to detect that he had set the wrong course. ATC called us about 35 mi past billings and asked what our clearance was. I responded and he gave us a heading for hln. There did not appear to be a conflict with any other aircraft. A contributing factor was that my seat was back, causing my yoke to block my view of the HSI. We both stated that we normally xchk the opposite VOR, but failed to do so in this case. This calls for renewed diligence. Reliance on the omega, which we were not using, also contributed.
Original NASA ASRS Text
Title: HDG DEV ON AIRWAYS. PF, FO, SET WRONG COURSE ON THE VOR AFTER PASSING A FIX. RPTR CAPT FAILED TO CHK THE COURSE SET ON THE FO VOR. ATC INTERVENED AND GAVE FLC A DIRECT COURSE TO NEXT POINT.
Narrative: OUR FLT PLAN CALLED FOR J34 HLN. HOWEVER, UPON XING BIL, THE FO, WHO WAS FLYING THE ACFT, INADVERTENTLY SET THE COURSE FOR J16, A DIFFERENCE OF 16 DEGS. THIS WAS THE RTE WE HAD FLOWN ON A PREVIOUS TRIP. I SET J34 ON MY VOR, NOTICED THE FO HAD SET HIS, BUT FAILED TO DETECT THAT HE HAD SET THE WRONG COURSE. ATC CALLED US ABOUT 35 MI PAST BILLINGS AND ASKED WHAT OUR CLRNC WAS. I RESPONDED AND HE GAVE US A HEADING FOR HLN. THERE DID NOT APPEAR TO BE A CONFLICT WITH ANY OTHER ACFT. A CONTRIBUTING FACTOR WAS THAT MY SEAT WAS BACK, CAUSING MY YOKE TO BLOCK MY VIEW OF THE HSI. WE BOTH STATED THAT WE NORMALLY XCHK THE OPPOSITE VOR, BUT FAILED TO DO SO IN THIS CASE. THIS CALLS FOR RENEWED DILIGENCE. RELIANCE ON THE OMEGA, WHICH WE WERE NOT USING, ALSO CONTRIBUTED.
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.