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Deviation from clearance route. Air carrier takes an unauthorized and inadvertent shortcut, but are directed back to course by an alert controller.
| Attributes | |
| ACN | 305150 |
| Time | |
| Date | 199505 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : etg |
| State Reference | PA |
| Altitude | msl bound lower : 17000 msl bound upper : 17000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute airway : j146 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 1600 |
| ASRS Report | 305150 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 11000 flight time type : 2000 |
| ASRS Report | 305149 |
| Events | |
| Anomaly | non adherence : published procedure non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | 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:
Cleared route J146 mip V232 lytel abe. J146 is 109 degree radial into etg and 109 degree radial into mip and V232 is 108 degree radial for 37 DME to lytel intersection then direct abe. I was off getting abe ATIS which was difficult in receiving because the same frequency is used for ZNY. The captain went 37 DME out of etg and then direct to abe instead of 37 DME from mip to abe. Navigation error caught by ZNY crew turned back to airway. Estimator error, approximately 4 mi south of course. A chain of events started by my extended time out of loop to obtain abe ATIS. Callback conversation with reporter revealed the following information: the flight crew was flying a B-737- 200 when the first officer became engrossed in copying the ATIS and was unable to assist the captain with his navigation problem. The captain misread the route map, skipping a VOR, and went direct to destination. An alert ARTCC controller redirected them.
Original NASA ASRS Text
Title: DEV FROM CLRNC RTE. ACR TAKES AN UNAUTH AND INADVERTENT SHORTCUT, BUT ARE DIRECTED BACK TO COURSE BY AN ALERT CTLR.
Narrative: CLRED RTE J146 MIP V232 LYTEL ABE. J146 IS 109 DEG RADIAL INTO ETG AND 109 DEG RADIAL INTO MIP AND V232 IS 108 DEG RADIAL FOR 37 DME TO LYTEL INTXN THEN DIRECT ABE. I WAS OFF GETTING ABE ATIS WHICH WAS DIFFICULT IN RECEIVING BECAUSE THE SAME FREQ IS USED FOR ZNY. THE CAPT WENT 37 DME OUT OF ETG AND THEN DIRECT TO ABE INSTEAD OF 37 DME FROM MIP TO ABE. NAV ERROR CAUGHT BY ZNY CREW TURNED BACK TO AIRWAY. ESTIMATOR ERROR, APPROX 4 MI S OF COURSE. A CHAIN OF EVENTS STARTED BY MY EXTENDED TIME OUT OF LOOP TO OBTAIN ABE ATIS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE FLC WAS FLYING A B-737- 200 WHEN THE FO BECAME ENGROSSED IN COPYING THE ATIS AND WAS UNABLE TO ASSIST THE CAPT WITH HIS NAV PROB. THE CAPT MISREAD THE RTE MAP, SKIPPING A VOR, AND WENT DIRECT TO DEST. AN ALERT ARTCC CTLR REDIRECTED THEM.
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.