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Flight crew of an light transport air carrier aircraft were informed by ATC that they were off course and given radar vectors back on course.
| Attributes | |
| ACN | 255695 |
| Time | |
| Date | 199311 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : orw |
| State Reference | CT |
| Altitude | msl bound lower : 9000 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, High Wing, 2 Turboprop Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute airway : v16 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 170 flight time total : 15400 flight time type : 2000 |
| ASRS Report | 255695 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
En route from isp to bos tracking outbound from norwich (orw) VOR on victor 16. We were advised by ATC that our course track was 7 mi off the center course of victor 16. Instructions were followed by receiving radar vectors that brought us back on course. The aircraft I was flying is equipped with dual electronic H situation indicators (ehsi). Both of our CDI needles displayed less than 1 DOT left needle deflection during this event. After a brief discussion with my crew, I learned that 2 of our passenger had been operating laptop computers at the time of this event. I believe that operation of electronic devices in-flight, by these 2 passenger, caused interference to both VOR displays (CDI's). A possible contributing factor was caused by poor human performance reaction, due to extended scheduled long duty days prior to this flight.
Original NASA ASRS Text
Title: FLC OF AN LTT ACR ACFT WERE INFORMED BY ATC THAT THEY WERE OFF COURSE AND GIVEN RADAR VECTORS BACK ON COURSE.
Narrative: ENRTE FROM ISP TO BOS TRACKING OUTBOUND FROM NORWICH (ORW) VOR ON VICTOR 16. WE WERE ADVISED BY ATC THAT OUR COURSE TRACK WAS 7 MI OFF THE CTR COURSE OF VICTOR 16. INSTRUCTIONS WERE FOLLOWED BY RECEIVING RADAR VECTORS THAT BROUGHT US BACK ON COURSE. THE ACFT I WAS FLYING IS EQUIPPED WITH DUAL ELECTRONIC H SIT INDICATORS (EHSI). BOTH OF OUR CDI NEEDLES DISPLAYED LESS THAN 1 DOT L NEEDLE DEFLECTION DURING THIS EVENT. AFTER A BRIEF DISCUSSION WITH MY CREW, I LEARNED THAT 2 OF OUR PAX HAD BEEN OPERATING LAPTOP COMPUTERS AT THE TIME OF THIS EVENT. I BELIEVE THAT OP OF ELECTRONIC DEVICES INFLT, BY THESE 2 PAX, CAUSED INTERFERENCE TO BOTH VOR DISPLAYS (CDI'S). A POSSIBLE CONTRIBUTING FACTOR WAS CAUSED BY POOR HUMAN PERFORMANCE REACTION, DUE TO EXTENDED SCHEDULED LONG DUTY DAYS PRIOR TO THIS FLT.
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.