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An IFR cga HS25 aircraft in a left turn after takeoff experiences an near midair collision with a PA46 entering downwind. The reporter feels that TCASII TA prevented a more serious situation from occurring.
| Attributes | |
| ACN | 390906 |
| Time | |
| Date | 199801 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : iso |
| State Reference | NC |
| Altitude | msl bound lower : 1300 msl bound upper : 1300 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : iso |
| Operator | general aviation : corporate |
| Make Model Name | HS 125 Series 1-600 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial |
| Route In Use | departure other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | PA-46 Malibu |
| Operating Under FAR Part | Part 91 |
| Flight Phase | other |
| Route In Use | arrival other |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 8700 flight time type : 4901 |
| ASRS Report | 390906 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : far other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action none taken : unable |
| Consequence | Other |
| Miss Distance | horizontal : 400 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
We departed runway 5 at iso. Tower cleared us for takeoff with a l- hand turn on course, and climb to 8000 ft. Once we started our left turn, we got an mfd TCASII popup TA only because of our low altitude relationship to the ground. We stopped the climb, leveloff (as soon as possible). Crew saw traffic flying a left downwind for runway 5. Traffic missed us by 200 ft and the TCASII confirmed the altitude. We asked tower about the traffic and the tower controller stated that the piper aircraft said that he was 5 mi out -- in actuality he was less than 1 mi. I really feel that if we would not have had TCASII we would have had a midair collision. Close, very close. Both the piper pilot and controller could've used better judgement.
Original NASA ASRS Text
Title: AN IFR CGA HS25 ACFT IN A L TURN AFTER TKOF EXPERIENCES AN NMAC WITH A PA46 ENTERING DOWNWIND. THE RPTR FEELS THAT TCASII TA PREVENTED A MORE SERIOUS SIT FROM OCCURRING.
Narrative: WE DEPARTED RWY 5 AT ISO. TWR CLRED US FOR TKOF WITH A L- HAND TURN ON COURSE, AND CLB TO 8000 FT. ONCE WE STARTED OUR L TURN, WE GOT AN MFD TCASII POPUP TA ONLY BECAUSE OF OUR LOW ALT RELATIONSHIP TO THE GND. WE STOPPED THE CLB, LEVELOFF (ASAP). CREW SAW TFC FLYING A L DOWNWIND FOR RWY 5. TFC MISSED US BY 200 FT AND THE TCASII CONFIRMED THE ALT. WE ASKED TWR ABOUT THE TFC AND THE TWR CTLR STATED THAT THE PIPER ACFT SAID THAT HE WAS 5 MI OUT -- IN ACTUALITY HE WAS LESS THAN 1 MI. I REALLY FEEL THAT IF WE WOULD NOT HAVE HAD TCASII WE WOULD HAVE HAD A MIDAIR COLLISION. CLOSE, VERY CLOSE. BOTH THE PIPER PLT AND CTLR COULD'VE USED BETTER JUDGEMENT.
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.