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Near midair collision with a biplane reported by C182 observer in the rear seat of a training flight north of sck, ca.
| Attributes | |
| ACN | 561780 |
| Time | |
| Date | 200209 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sck.airport |
| State Reference | CA |
| Altitude | msl single value : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sck.tracon |
| Operator | general aviation : instructional |
| Make Model Name | Skylane 182/RG Turbo Skylane/RG |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Other |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Person 1 | |
| Function | observation : passenger |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 30 flight time total : 220 flight time type : 170 |
| ASRS Report | 561780 |
| Person 2 | |
| Affiliation | other |
| Function | instruction : trainee |
| Events | |
| Anomaly | conflict : nmac non adherence : far non adherence : published procedure other spatial deviation |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 400 vertical : 400 |
| Supplementary | |
| Problem Areas | Navigational Facility ATC Human Performance Aircraft Flight Crew Human Performance Environmental Factor |
| Primary Problem | Flight Crew Human Performance |
Narrative:
I was flying in a C182 on an instrument training flight. I noticed a light colored (either white or yellow) bi-wing airplane pass in front of my aircraft from left to right. We were on an IFR flight plan at 6000 ft heading 307 degrees. I would estimate the bi-wing aircraft to have been heading approximately 025-030 degrees. The other aircraft passed above us at well less than 500 ft. We received no warning from the controller that there was any other aircraft in our vicinity. There were 3 people on board my aircraft -- the pilot, the instructor, and the PNF in the rear seat. The PF was under the hood. At the time of the near midair collision, we were under the control of stockton approach and had just been handed off to another sector. The near midair collision occurred after the handoff and before we had a chance to contact the new controller. Since the other aircraft was above us and coming from a relative bearing of almost 260 degrees, it was impossible to have seen him. I would also imagine that a bi-wing aircraft would have poor visibility directly ahead and very little visibility below. It would appear that this was a situation that each pilot did not have any chance of seeing the other aircraft. The bi-wing aircraft flew straight ahead for a short period of time and then started to turn. This would lead me to believe that the other aircraft was conducting some type of VFR maneuvers in this area. If this aircraft were on a flight plan, then it should have been at 7500 ft for the correct hemispheric altitude. Since stockton approach didn't call the traffic, I would assume that the other aircraft did not have a transponder or if one was installed, it was not on. This did appear to be a pre-1940 type aircraft. An near midair collision report was filed.
Original NASA ASRS Text
Title: NMAC WITH A BIPLANE RPTED BY C182 OBSERVER IN THE REAR SEAT OF A TRAINING FLT N OF SCK, CA.
Narrative: I WAS FLYING IN A C182 ON AN INST TRAINING FLT. I NOTICED A LIGHT COLORED (EITHER WHITE OR YELLOW) BI-WING AIRPLANE PASS IN FRONT OF MY ACFT FROM L TO R. WE WERE ON AN IFR FLT PLAN AT 6000 FT HDG 307 DEGS. I WOULD ESTIMATE THE BI-WING ACFT TO HAVE BEEN HDG APPROX 025-030 DEGS. THE OTHER ACFT PASSED ABOVE US AT WELL LESS THAN 500 FT. WE RECEIVED NO WARNING FROM THE CTLR THAT THERE WAS ANY OTHER ACFT IN OUR VICINITY. THERE WERE 3 PEOPLE ON BOARD MY ACFT -- THE PLT, THE INSTRUCTOR, AND THE PNF IN THE REAR SEAT. THE PF WAS UNDER THE HOOD. AT THE TIME OF THE NMAC, WE WERE UNDER THE CTL OF STOCKTON APCH AND HAD JUST BEEN HANDED OFF TO ANOTHER SECTOR. THE NMAC OCCURRED AFTER THE HDOF AND BEFORE WE HAD A CHANCE TO CONTACT THE NEW CTLR. SINCE THE OTHER ACFT WAS ABOVE US AND COMING FROM A RELATIVE BEARING OF ALMOST 260 DEGS, IT WAS IMPOSSIBLE TO HAVE SEEN HIM. I WOULD ALSO IMAGINE THAT A BI-WING ACFT WOULD HAVE POOR VISIBILITY DIRECTLY AHEAD AND VERY LITTLE VISIBILITY BELOW. IT WOULD APPEAR THAT THIS WAS A SIT THAT EACH PLT DID NOT HAVE ANY CHANCE OF SEEING THE OTHER ACFT. THE BI-WING ACFT FLEW STRAIGHT AHEAD FOR A SHORT PERIOD OF TIME AND THEN STARTED TO TURN. THIS WOULD LEAD ME TO BELIEVE THAT THE OTHER ACFT WAS CONDUCTING SOME TYPE OF VFR MANEUVERS IN THIS AREA. IF THIS ACFT WERE ON A FLT PLAN, THEN IT SHOULD HAVE BEEN AT 7500 FT FOR THE CORRECT HEMISPHERIC ALT. SINCE STOCKTON APCH DIDN'T CALL THE TFC, I WOULD ASSUME THAT THE OTHER ACFT DID NOT HAVE A XPONDER OR IF ONE WAS INSTALLED, IT WAS NOT ON. THIS DID APPEAR TO BE A PRE-1940 TYPE ACFT. AN NMAC RPT WAS FILED.
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.