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Near midair collision between a biplane in cruise flight 7 mi from a controled airport, and underneath class B airspace, and a piper twin commanche, PA30, climbing out from the controled airport. Each aircraft took evasive action turn away from each other.
| Attributes | |
| ACN | 368709 |
| Time | |
| Date | 199705 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : tmb |
| State Reference | FL |
| Altitude | msl bound lower : 1400 msl bound upper : 1400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : tmb |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | None |
| Aircraft 2 | |
| Make Model Name | PA-30 Twin Comanche |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | other other : other pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 20 flight time total : 1150 flight time type : 70 |
| ASRS Report | 368709 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 300 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
I was VFR at about 1400 ft MSL approximately 7 mi ese of tmb. I was still on tower frequency (118.9). I was turning back to the west to return to tmb when I saw a twin commanche very close. I maneuvered to the southwest and the twin commanche maneuvered to the northeast. I commented to the tower that there was no advisory or warning to either aircraft and that we were pretty close. The commanche pilot said he had me in sight. I don't recall the tower's response, if any. The commanche was, obviously, also on tower frequency. I don't know if the controller was a trainee, but I cannot understand the lack of an advisory. I believe the commanche had just taken off from tmb.
Original NASA ASRS Text
Title: NMAC BTWN A BIPLANE IN CRUISE FLT 7 MI FROM A CTLED ARPT, AND UNDERNEATH CLASS B AIRSPACE, AND A PIPER TWIN COMMANCHE, PA30, CLBING OUT FROM THE CTLED ARPT. EACH ACFT TOOK EVASIVE ACTION TURN AWAY FROM EACH OTHER.
Narrative: I WAS VFR AT ABOUT 1400 FT MSL APPROX 7 MI ESE OF TMB. I WAS STILL ON TWR FREQ (118.9). I WAS TURNING BACK TO THE W TO RETURN TO TMB WHEN I SAW A TWIN COMMANCHE VERY CLOSE. I MANEUVERED TO THE SW AND THE TWIN COMMANCHE MANEUVERED TO THE NE. I COMMENTED TO THE TWR THAT THERE WAS NO ADVISORY OR WARNING TO EITHER ACFT AND THAT WE WERE PRETTY CLOSE. THE COMMANCHE PLT SAID HE HAD ME IN SIGHT. I DON'T RECALL THE TWR'S RESPONSE, IF ANY. THE COMMANCHE WAS, OBVIOUSLY, ALSO ON TWR FREQ. I DON'T KNOW IF THE CTLR WAS A TRAINEE, BUT I CANNOT UNDERSTAND THE LACK OF AN ADVISORY. I BELIEVE THE COMMANCHE HAD JUST TAKEN OFF FROM TMB.
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.