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Air carrier Y non adherence to ATC clearance flew wrong heading after takeoff had less than standard separation from air carrier X.
| Attributes | |
| ACN | 307470 |
| Time | |
| Date | 199506 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ord |
| State Reference | IL |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| 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 |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller radar : 13 |
| ASRS Report | 307470 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 12000 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X departed runway 27L and issued a heading of 250 degree. Air carrier Y (B73S) departed runway 27L and issued runway heading. Y checked on departure using wrong frequency. Y was given correct frequency and he subsequently checked on. I observed Y on a southwest heading quickly overtaking air carrier X. I issued Y an immediate right turn to 270 degree and X an immediate left turn to 180 degree. After checking with Y several times, he admitted the tower local controller issued a runway heading after departure. Y 'messed up' and inadvertently put in the wrong heading on their bug.
Original NASA ASRS Text
Title: ACR Y NON ADHERENCE TO ATC CLRNC FLEW WRONG HDG AFTER TKOF HAD LTSS FROM ACR X.
Narrative: ACR X DEPARTED RWY 27L AND ISSUED A HDG OF 250 DEG. ACR Y (B73S) DEPARTED RWY 27L AND ISSUED RWY HDG. Y CHKED ON DEP USING WRONG FREQ. Y WAS GIVEN CORRECT FREQ AND HE SUBSEQUENTLY CHKED ON. I OBSERVED Y ON A SW HDG QUICKLY OVERTAKING ACR X. I ISSUED Y AN IMMEDIATE R TURN TO 270 DEG AND X AN IMMEDIATE L TURN TO 180 DEG. AFTER CHKING WITH Y SEVERAL TIMES, HE ADMITTED THE TWR LCL CTLR ISSUED A RWY HDG AFTER DEP. Y 'MESSED UP' AND INADVERTENTLY PUT IN THE WRONG HDG ON THEIR BUG.
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.