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A DC10-10 cargo flight is 30 degrees off heading for a direct to tbe and is corrected by ZDV controller after a potential traffic conflict when PIC believes flight is on course 100 mi from tbe, co.
| Attributes | |
| ACN | 537511 |
| Time | |
| Date | 200202 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : tbe.vortac |
| State Reference | CO |
| Altitude | msl single value : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 10 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdv.artcc |
| Operator | Other |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 186 flight time total : 11000 flight time type : 1800 |
| ASRS Report | 537511 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe conflict : airborne less severe non adherence : published procedure non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : separated traffic controller : issued advisory flight crew : became reoriented |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Navigational Facility Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Theoretically on course inbound to tbe, 087 degree course inbound at 100 DME, #2 autoplt on, using VOR track mode of FMS. ATC asked us where we were going. Told them on course 087 degrees to tbe. ATC claimed we were headed to laa, not tbe. ATC had to give another aircraft a 40 degree turn because of our course. Tbe was correctly idented, course bar on HSI was centered. We turned 30 degrees right (as instructed) to get back to tbe, still showing on course with bar centered. We thought the large crab angle was due to winter winds, but this particular aircraft had no INS, and no TCASII either.
Original NASA ASRS Text
Title: A DC10-10 CARGO FLT IS 30 DEGS OFF HDG FOR A DIRECT TO TBE AND IS CORRECTED BY ZDV CTLR AFTER A POTENTIAL TFC CONFLICT WHEN PIC BELIEVES FLT IS ON COURSE 100 MI FROM TBE, CO.
Narrative: THEORETICALLY ON COURSE INBOUND TO TBE, 087 DEG COURSE INBOUND AT 100 DME, #2 AUTOPLT ON, USING VOR TRACK MODE OF FMS. ATC ASKED US WHERE WE WERE GOING. TOLD THEM ON COURSE 087 DEGS TO TBE. ATC CLAIMED WE WERE HEADED TO LAA, NOT TBE. ATC HAD TO GIVE ANOTHER ACFT A 40 DEG TURN BECAUSE OF OUR COURSE. TBE WAS CORRECTLY IDENTED, COURSE BAR ON HSI WAS CTRED. WE TURNED 30 DEGS R (AS INSTRUCTED) TO GET BACK TO TBE, STILL SHOWING ON COURSE WITH BAR CTRED. WE THOUGHT THE LARGE CRAB ANGLE WAS DUE TO WINTER WINDS, BUT THIS PARTICULAR ACFT HAD NO INS, AND NO TCASII EITHER.
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.