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Flight crew of a B737-200 failed to follow the assigned, and filed, track during cruise resulting in ATC providing vectors back onto intended course.
| Attributes | |
| ACN | 352110 |
| Time | |
| Date | 199611 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : sax |
| State Reference | NJ |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| 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 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | other other : other pilot : flight engineer pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 120 flight time total : 16000 flight time type : 2000 |
| ASRS Report | 352110 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| 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:
In cruise misread map, should have went out 230 degree radial and went out 252 degree radial, distance was approximately 25 mi. Was proceeding as filed down J77 to sax then supposed to continued on J6 -- 77 to bwz, but followed J60. After bwz the 2 airways parallel each other. I don't know if I was confused by their parallel track or misread J60 for J6. May have been due to slight fatigue flew from buf to bos with a XA00 departure time then an approximately 3 hour break in bos before this leg. Contributing factors -- duty day beginning, break, J6 -- J60 and parallel tracks. Just as we discovered our error ATC started giving us vectors.
Original NASA ASRS Text
Title: FLC OF A B737-200 FAILED TO FOLLOW THE ASSIGNED, AND FILED, TRACK DURING CRUISE RESULTING IN ATC PROVIDING VECTORS BACK ONTO INTENDED COURSE.
Narrative: IN CRUISE MISREAD MAP, SHOULD HAVE WENT OUT 230 DEG RADIAL AND WENT OUT 252 DEG RADIAL, DISTANCE WAS APPROX 25 MI. WAS PROCEEDING AS FILED DOWN J77 TO SAX THEN SUPPOSED TO CONTINUED ON J6 -- 77 TO BWZ, BUT FOLLOWED J60. AFTER BWZ THE 2 AIRWAYS PARALLEL EACH OTHER. I DON'T KNOW IF I WAS CONFUSED BY THEIR PARALLEL TRACK OR MISREAD J60 FOR J6. MAY HAVE BEEN DUE TO SLIGHT FATIGUE FLEW FROM BUF TO BOS WITH A XA00 DEP TIME THEN AN APPROX 3 HR BREAK IN BOS BEFORE THIS LEG. CONTRIBUTING FACTORS -- DUTY DAY BEGINNING, BREAK, J6 -- J60 AND PARALLEL TRACKS. JUST AS WE DISCOVERED OUR ERROR ATC STARTED GIVING US VECTORS.
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.