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Commuter flight crew requests direct when receiving the localizer. On handoff controller says off course as he believes cleared to VOR.
| Attributes | |
| ACN | 193974 |
| Time | |
| Date | 199110 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : jnc |
| State Reference | CO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv tower : phl |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 114 flight time total : 4483 flight time type : 240 |
| ASRS Report | 193974 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : commercial pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 8810 flight time type : 1370 |
| ASRS Report | 193364 |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | other |
Narrative:
After level off and in contact with salt lake center, we were cleared direct to grand junction. About 10 mins later the captain asked me to request to be cleared via the localizer course to grand junction. I stated that we were receiving the localizer and requested clearance to grand junction via the same. The controller stated, 'roger, cleared direct to grand junction.' we both understood that to mean that we were cleared as requested. A few moments after contacting denver center, the controller asked where we were going. We informed him that we were tracking the localizer as salt lake had cleared us. He stated that the computer showed us cleared to the VOR and that we were involved in a route deviation. He subsequently cleared us to grand junction via the localizer and asked that the captain call the center. The confusion and subsequent route deviation resulted from miscom and a VOR and localizer sharing the same name. This was only my second trip to grand junction and I was not aware that asking for the localizer direct was standard practice. I could have averted the misunderstanding if I had read back the clearance 'cleared to junction (via the localizer), or at least queried the controller of the same.
Original NASA ASRS Text
Title: COMMUTER FLC REQUESTS DIRECT WHEN RECEIVING THE LOC. ON HDOF CTLR SAYS OFF COURSE AS HE BELIEVES CLRED TO VOR.
Narrative: AFTER LEVEL OFF AND IN CONTACT WITH SALT LAKE CENTER, WE WERE CLRED DIRECT TO GRAND JUNCTION. ABOUT 10 MINS LATER THE CAPT ASKED ME TO REQUEST TO BE CLRED VIA THE LOC COURSE TO GRAND JUNCTION. I STATED THAT WE WERE RECEIVING THE LOC AND REQUESTED CLRNC TO GRAND JUNCTION VIA THE SAME. THE CTLR STATED, 'ROGER, CLRED DIRECT TO GRAND JUNCTION.' WE BOTH UNDERSTOOD THAT TO MEAN THAT WE WERE CLRED AS REQUESTED. A FEW MOMENTS AFTER CONTACTING DENVER CENTER, THE CTLR ASKED WHERE WE WERE GOING. WE INFORMED HIM THAT WE WERE TRACKING THE LOC AS SALT LAKE HAD CLRED US. HE STATED THAT THE COMPUTER SHOWED US CLRED TO THE VOR AND THAT WE WERE INVOLVED IN A RTE DEV. HE SUBSEQUENTLY CLRED US TO GRAND JUNCTION VIA THE LOC AND ASKED THAT THE CAPT CALL THE CENTER. THE CONFUSION AND SUBSEQUENT RTE DEV RESULTED FROM MISCOM AND A VOR AND LOC SHARING THE SAME NAME. THIS WAS ONLY MY SECOND TRIP TO GRAND JUNCTION AND I WAS NOT AWARE THAT ASKING FOR THE LOC DIRECT WAS STANDARD PRACTICE. I COULD HAVE AVERTED THE MISUNDERSTANDING IF I HAD READ BACK THE CLRNC 'CLRED TO JUNCTION (VIA THE LOC), OR AT LEAST QUERIED THE CTLR OF THE SAME.
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.