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Potential conflict when departure small aircraft turns into second small aircraft departing parallel runway.
| Attributes | |
| ACN | 145791 |
| Time | |
| Date | 199005 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pdk |
| State Reference | GA |
| Altitude | agl bound lower : 500 agl bound upper : 500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : pdk |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Flight Phase | climbout : initial climbout : takeoff |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | climbout : takeoff climbout : initial |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 3 flight time total : 5500 flight time type : 25 |
| ASRS Report | 145791 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| 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 |
| Miss Distance | horizontal : 5000 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Requested a left turnout from takeoff on 20R across departure path of 20L. Request made prior to takeoff on 20R. When cleared for takeoff, I assumed I was cleared for left turnout. After takeoff, left turn initiated at 50' AGL. This was begun at this altitude because WX was hot and a tower lies in departure path approximately 2 mi from point where turn was initiated. Tower called traffic to me: 'aircraft on departure 20L, continue straight out from 20R,' or similar such phrases. I followed the instructions and listened while the small aircraft departing on 20L queried the tower about my clearance. The incident could have been avoided had I verified that I was cleared for a left turn before initiating it.
Original NASA ASRS Text
Title: POTENTIAL CONFLICT WHEN DEP SMA TURNS INTO SECOND SMA DEPARTING PARALLEL RWY.
Narrative: REQUESTED A LEFT TURNOUT FROM TKOF ON 20R ACROSS DEP PATH OF 20L. REQUEST MADE PRIOR TO TKOF ON 20R. WHEN CLRED FOR TKOF, I ASSUMED I WAS CLRED FOR LEFT TURNOUT. AFTER TKOF, LEFT TURN INITIATED AT 50' AGL. THIS WAS BEGUN AT THIS ALT BECAUSE WX WAS HOT AND A TWR LIES IN DEP PATH APPROX 2 MI FROM POINT WHERE TURN WAS INITIATED. TWR CALLED TFC TO ME: 'ACFT ON DEP 20L, CONTINUE STRAIGHT OUT FROM 20R,' OR SIMILAR SUCH PHRASES. I FOLLOWED THE INSTRUCTIONS AND LISTENED WHILE THE SMA DEPARTING ON 20L QUERIED THE TWR ABOUT MY CLRNC. THE INCIDENT COULD HAVE BEEN AVOIDED HAD I VERIFIED THAT I WAS CLRED FOR A LEFT TURN BEFORE INITIATING IT.
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.