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Air carrier mdt vectored to intercept the airway then changed to maintain vector heading for traffic. Captain, PF, left the flight control panel in the armed mode and at decee intersection the aircraft turned to the airway heading. Controller questioned heading when the error was caught by the flight crew. No conflict.
| Attributes | |
| ACN | 362420 |
| Time | |
| Date | 199703 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : cvg |
| State Reference | OH |
| Altitude | msl bound lower : 20000 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 280 flight time total : 6000 flight time type : 1100 |
| ASRS Report | 362240 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : far 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:
We were placed on a heading to intercept the airway from cvg to vhp. Decee intersection lies between, with a turn occurring there. Upon switching from cinti departure to ZID, we were placed on a heading, vector for traffic, which would preclude turning at decee for indy (vhp). After several mins we were again switched to another frequency (ZID). This controller then asked if we were on a heading, to which I responded, 'yes.' he asked what that was, to which I replied with our current heading. At this time, I realized what had happened. The captain had somehow left the flight control panel in an armed mode -- heading, with navigation armed to capture the airway bend at decee. This allowed the aircraft to turn and intercept the airway to vhp, instead of remaining on the previously assigned heading. I apologized and asked if there was any problem, to which the controller responded that there was an aircraft at 6 mi off our right side. Captain acknowledged mistake, apologized to me. I acknowledged my inattention contributed to this mistake. The controller also stated that it was not a problem.
Original NASA ASRS Text
Title: ACR MDT VECTORED TO INTERCEPT THE AIRWAY THEN CHANGED TO MAINTAIN VECTOR HEADING FOR TFC. CAPT, PF, LEFT THE FLT CTL PANEL IN THE ARMED MODE AND AT DECEE INTXN THE ACFT TURNED TO THE AIRWAY HEADING. CTLR QUESTIONED HEADING WHEN THE ERROR WAS CAUGHT BY THE FLC. NO CONFLICT.
Narrative: WE WERE PLACED ON A HEADING TO INTERCEPT THE AIRWAY FROM CVG TO VHP. DECEE INTXN LIES BTWN, WITH A TURN OCCURRING THERE. UPON SWITCHING FROM CINTI DEP TO ZID, WE WERE PLACED ON A HEADING, VECTOR FOR TFC, WHICH WOULD PRECLUDE TURNING AT DECEE FOR INDY (VHP). AFTER SEVERAL MINS WE WERE AGAIN SWITCHED TO ANOTHER FREQ (ZID). THIS CTLR THEN ASKED IF WE WERE ON A HEADING, TO WHICH I RESPONDED, 'YES.' HE ASKED WHAT THAT WAS, TO WHICH I REPLIED WITH OUR CURRENT HEADING. AT THIS TIME, I REALIZED WHAT HAD HAPPENED. THE CAPT HAD SOMEHOW LEFT THE FLT CTL PANEL IN AN ARMED MODE -- HEADING, WITH NAV ARMED TO CAPTURE THE AIRWAY BEND AT DECEE. THIS ALLOWED THE ACFT TO TURN AND INTERCEPT THE AIRWAY TO VHP, INSTEAD OF REMAINING ON THE PREVIOUSLY ASSIGNED HEADING. I APOLOGIZED AND ASKED IF THERE WAS ANY PROB, TO WHICH THE CTLR RESPONDED THAT THERE WAS AN ACFT AT 6 MI OFF OUR R SIDE. CAPT ACKNOWLEDGED MISTAKE, APOLOGIZED TO ME. I ACKNOWLEDGED MY INATTENTION CONTRIBUTED TO THIS MISTAKE. THE CTLR ALSO STATED THAT IT WAS NOT A PROB.
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.