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Small aircraft X non adherence to ATC instructions flew wrong heading failed to contact departure control had near midair collision less than standard separation from small transport Y. Evasive action taken. See and avoid concept.
| Attributes | |
| ACN | 226081 |
| Time | |
| Date | 199211 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : rdu |
| State Reference | NC |
| Altitude | msl bound lower : 1800 msl bound upper : 1800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : rdu tower : rdu |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | climbout : initial |
| Route In Use | enroute : on vectors |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | general aviation : corporate |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Flight Phase | climbout : initial |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller military : 2 controller radar : 12 |
| ASRS Report | 226081 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : nmac non adherence : clearance non adherence : required legal separation other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 400 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Small aircraft X, VFR, departed runway 23L was given fly runway heading. Small transport Y IFR departed runway 23L was given turn right heading 270 degrees. Small transport Y began a turn very soon after lifting off to 270 degrees. Once divergence was accomplished, I instructed small aircraft X to turn right heading 255 degrees and contact departure. I then told small transport Y to contact departure. Both aircraft acknowledged frequency change. Approximately 1 min later, small aircraft X called the lcw position and stated 'departure what was that heading again?' I looked up at the BRITE and observed small aircraft X target merge with small transport Y target. I told small aircraft X to fly heading 255. Apparently small transport Y initiated a turn to avoid colliding with small aircraft X.
Original NASA ASRS Text
Title: SMA X NON ADHERENCE TO ATC INSTRUCTIONS FLEW WRONG HDG FAILED TO CONTACT DEP CTL HAD NMAC LTSS FROM SMT Y. EVASIVE ACTION TAKEN. SEE AND AVOID CONCEPT.
Narrative: SMA X, VFR, DEPARTED RWY 23L WAS GIVEN FLY RWY HDG. SMT Y IFR DEPARTED RWY 23L WAS GIVEN TURN R HDG 270 DEGS. SMT Y BEGAN A TURN VERY SOON AFTER LIFTING OFF TO 270 DEGS. ONCE DIVERGENCE WAS ACCOMPLISHED, I INSTRUCTED SMA X TO TURN R HDG 255 DEGS AND CONTACT DEP. I THEN TOLD SMT Y TO CONTACT DEP. BOTH ACFT ACKNOWLEDGED FREQ CHANGE. APPROX 1 MIN LATER, SMA X CALLED THE LCW POS AND STATED 'DEP WHAT WAS THAT HDG AGAIN?' I LOOKED UP AT THE BRITE AND OBSERVED SMA X TARGET MERGE WITH SMT Y TARGET. I TOLD SMA X TO FLY HDG 255. APPARENTLY SMT Y INITIATED A TURN TO AVOID COLLIDING WITH SMA X.
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.