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Extra 300L aerobatic aircraft pilot and an air carrier commuter aircraft had an near midair collision at bed.
| Attributes | |
| ACN | 553177 |
| Time | |
| Date | 200207 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bed.airport |
| State Reference | MA |
| Altitude | agl single value : 1000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bed.tower tower : teb.tower |
| Operator | general aviation : personal |
| Make Model Name | Experimental |
| Operating Under FAR Part | Part 91 |
| Route In Use | approach : traffic pattern |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | tower : bed.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time total : 4900 flight time type : 100 |
| ASRS Report | 553177 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Miss Distance | horizontal : 0 vertical : 200 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Conditions were unlimited ceiling and visibility. I was returning to bed after an aerobatics practice session. I called the tower passing minuteman airport (6b6) informing them of my position, and that I had the information from ATIS. I was told to report midfield left downwind, which I acknowledged. While on the 45 degree entry to downwind (runway 29), I noticed a commuter flight departing on runway and climbing straight out. I then diverted my attention to other possible traffic on crosswind or downwind. My main concern was training aircraft practicing touch-and-goes. These aircraft are usually hard to spot and much slower than my aircraft. While my attention was focused on spotting this traffic, I noticed some motion to my left with my peripheral vision. I turned my head left and saw the commuter aircraft in a climb coming straight toward me. Apparently, he had executed a left turn while my attention was diverted away from him. Being strapped into my aircraft with a 5-POINT aerobatic harness, I immediately executed a dive and passed about 200 ft under the commuter. Both G meters in my aircraft registered negative 4.5 G's. If I had not been in a very responsive aerobatic aircraft, I would have come much closer but probably would still have missed the commuter plane by about 50 ft. Sky conditions were perfect and the extra has excellent visibility, yet we still didn't see each other until the last min. The tower has radar capability, the transponder was on, but neither aircraft received an advisory. This is very unusual for inbound/outbound aircraft at bed.
Original NASA ASRS Text
Title: EXTRA 300L AEROBATIC ACFT PLT AND AN ACR COMMUTER ACFT HAD AN NMAC AT BED.
Narrative: CONDITIONS WERE UNLIMITED CEILING AND VISIBILITY. I WAS RETURNING TO BED AFTER AN AEROBATICS PRACTICE SESSION. I CALLED THE TWR PASSING MINUTEMAN ARPT (6B6) INFORMING THEM OF MY POS, AND THAT I HAD THE INFO FROM ATIS. I WAS TOLD TO RPT MIDFIELD L DOWNWIND, WHICH I ACKNOWLEDGED. WHILE ON THE 45 DEG ENTRY TO DOWNWIND (RWY 29), I NOTICED A COMMUTER FLT DEPARTING ON RWY AND CLBING STRAIGHT OUT. I THEN DIVERTED MY ATTN TO OTHER POSSIBLE TFC ON XWIND OR DOWNWIND. MY MAIN CONCERN WAS TRAINING ACFT PRACTICING TOUCH-AND-GOES. THESE ACFT ARE USUALLY HARD TO SPOT AND MUCH SLOWER THAN MY ACFT. WHILE MY ATTN WAS FOCUSED ON SPOTTING THIS TFC, I NOTICED SOME MOTION TO MY L WITH MY PERIPHERAL VISION. I TURNED MY HEAD L AND SAW THE COMMUTER ACFT IN A CLB COMING STRAIGHT TOWARD ME. APPARENTLY, HE HAD EXECUTED A L TURN WHILE MY ATTN WAS DIVERTED AWAY FROM HIM. BEING STRAPPED INTO MY ACFT WITH A 5-POINT AEROBATIC HARNESS, I IMMEDIATELY EXECUTED A DIVE AND PASSED ABOUT 200 FT UNDER THE COMMUTER. BOTH G METERS IN MY ACFT REGISTERED NEGATIVE 4.5 G'S. IF I HAD NOT BEEN IN A VERY RESPONSIVE AEROBATIC ACFT, I WOULD HAVE COME MUCH CLOSER BUT PROBABLY WOULD STILL HAVE MISSED THE COMMUTER PLANE BY ABOUT 50 FT. SKY CONDITIONS WERE PERFECT AND THE EXTRA HAS EXCELLENT VISIBILITY, YET WE STILL DIDN'T SEE EACH OTHER UNTIL THE LAST MIN. THE TWR HAS RADAR CAPABILITY, THE XPONDER WAS ON, BUT NEITHER ACFT RECEIVED AN ADVISORY. THIS IS VERY UNUSUAL FOR INBOUND/OUTBOUND ACFT AT BED.
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.