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An air carrier L1011 crew deviated from flight plan without clearance. WX factors thunderstorms. Track heading deviation. Error admitted.
| Attributes | |
| ACN | 348580 |
| Time | |
| Date | 199609 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bda |
| State Reference | FO |
| Altitude | msl bound lower : 35000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011 Tri-Star All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other cruise other |
| Route In Use | enroute : atlantic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 7000 flight time type : 1000 |
| ASRS Report | 348580 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : flight engineer |
| Events | |
| Anomaly | aircraft equipment problem : less severe inflight encounter : weather non adherence : far other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were northbound on A300. We deviated east of course for WX, unable to advise ATC prior to being contacted due to marginal reception and captain's initial determination that contact was unnecessary. Distrs precluded captain from noticing the magnitude of deviation.
Original NASA ASRS Text
Title: AN ACR L1011 CREW DEVIATED FROM FLT PLAN WITHOUT CLRNC. WX FACTORS TSTMS. TRACK HDG DEV. ERROR ADMITTED.
Narrative: WE WERE NBOUND ON A300. WE DEVIATED E OF COURSE FOR WX, UNABLE TO ADVISE ATC PRIOR TO BEING CONTACTED DUE TO MARGINAL RECEPTION AND CAPT'S INITIAL DETERMINATION THAT CONTACT WAS UNNECESSARY. DISTRS PRECLUDED CAPT FROM NOTICING THE MAGNITUDE OF DEV.
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.