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ATC advised flight crew of an medium large transport that they were not on an appropriate heading to the cleared fix during an arrival using RNAV.
| Attributes | |
| ACN | 298362 |
| Time | |
| Date | 199503 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : jvl airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| 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 |
| Route In Use | arrival other arrival star : star enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 298362 |
| 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 | Pilot Deviation |
Narrative:
We were west of jvl on JVL4 arrival. ATC was very busy. We were busy. Planes were holding and we were changing alternates. ATC cleared us direct to teddy to hold. We put teddy in the omega navigation system. No omega navigation system failures were present. During the omega navigation system turn to teddy, ATC quickly told us teddy was 20 degrees more to the right. There was no known traffic conflict. We complied with the turn. Rechked teddy latitude/long. It was good. Checked omega navigation system position at teddy. It was almost 20 mi in error with no warning. Wrote up the error in the logbook. ATC and we depend on omega navigation system at busy times when we cannot negotiate a more precise clearance, avoiding omega navigation system inherent limitations. This is a constant problem. Can we tell controllers to avoid giving terminal area RNAV clrncs to our md-80's. My plan is to turn down such clrncs in the future.
Original NASA ASRS Text
Title: ATC ADVISED FLC OF AN MLG THAT THEY WERE NOT ON AN APPROPRIATE HDG TO THE CLRED FIX DURING AN ARR USING RNAV.
Narrative: WE WERE W OF JVL ON JVL4 ARR. ATC WAS VERY BUSY. WE WERE BUSY. PLANES WERE HOLDING AND WE WERE CHANGING ALTERNATES. ATC CLRED US DIRECT TO TEDDY TO HOLD. WE PUT TEDDY IN THE OMEGA NAV SYS. NO OMEGA NAV SYS FAILURES WERE PRESENT. DURING THE OMEGA NAV SYS TURN TO TEDDY, ATC QUICKLY TOLD US TEDDY WAS 20 DEGS MORE TO THE R. THERE WAS NO KNOWN TFC CONFLICT. WE COMPLIED WITH THE TURN. RECHKED TEDDY LAT/LONG. IT WAS GOOD. CHKED OMEGA NAV SYS POS AT TEDDY. IT WAS ALMOST 20 MI IN ERROR WITH NO WARNING. WROTE UP THE ERROR IN THE LOGBOOK. ATC AND WE DEPEND ON OMEGA NAV SYS AT BUSY TIMES WHEN WE CANNOT NEGOTIATE A MORE PRECISE CLRNC, AVOIDING OMEGA NAV SYS INHERENT LIMITATIONS. THIS IS A CONSTANT PROB. CAN WE TELL CTLRS TO AVOID GIVING TERMINAL AREA RNAV CLRNCS TO OUR MD-80'S. MY PLAN IS TO TURN DOWN SUCH CLRNCS IN THE FUTURE.
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.