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Near midair collision between 2 GA aircraft with high, low wing combination affecting visual contact during climb cruise phase near pbh, wi.
| Attributes | |
| ACN | 525665 |
| Time | |
| Date | 200109 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | WI |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | artcc : zmp.artcc |
| Operator | general aviation : personal |
| Make Model Name | M-20 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : multi engine pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 40 flight time total : 1325 flight time type : 100 |
| ASRS Report | 525665 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : nmac non adherence : far other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 500 vertical : 50 |
| Supplementary | |
| Problem Areas | ATC Human Performance Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
This was a classic case of high wing/low wing blind spots which nearly resulted in a midair collision. I was climbing out after takeoff from phillips, wi, on a north heading. While scanning for traffic, I observed a mooney appear in front of me through the front window. The mooney appeared to be in cruise flight on a northwest heading. He was hidden by my right wing until he appeared in my windshield. Since the mooney appeared to be above me (by a small distance), I stopped my climb by applying forward pressure on the yoke. The mooney was close enough that I may have been able to read his n-number had I been so inclined. However, my first instinct was to initiate an avoidance maneuver. There was a significant speed differential. My airspeed was about 80 KTS in climb while the mooney was probably cruising around 15000 ft. Since the mooney was at 4000 ft MSL, I would speculate he was on an IFR flight plan. The mooney was above me and hidden by my right wing. I was below the mooney and may have been hidden under his left wing. The mooney approached from my right rear. About the only way I might have seen the mooney sooner would have been if I had raised the right wing significantly to check for traffic within 15-30 seconds prior to the near midair collision.
Original NASA ASRS Text
Title: NMAC BTWN 2 GA ACFT WITH HIGH, LOW WING COMBINATION AFFECTING VISUAL CONTACT DURING CLB CRUISE PHASE NEAR PBH, WI.
Narrative: THIS WAS A CLASSIC CASE OF HIGH WING/LOW WING BLIND SPOTS WHICH NEARLY RESULTED IN A MIDAIR COLLISION. I WAS CLBING OUT AFTER TKOF FROM PHILLIPS, WI, ON A N HDG. WHILE SCANNING FOR TFC, I OBSERVED A MOONEY APPEAR IN FRONT OF ME THROUGH THE FRONT WINDOW. THE MOONEY APPEARED TO BE IN CRUISE FLT ON A NW HDG. HE WAS HIDDEN BY MY R WING UNTIL HE APPEARED IN MY WINDSHIELD. SINCE THE MOONEY APPEARED TO BE ABOVE ME (BY A SMALL DISTANCE), I STOPPED MY CLB BY APPLYING FORWARD PRESSURE ON THE YOKE. THE MOONEY WAS CLOSE ENOUGH THAT I MAY HAVE BEEN ABLE TO READ HIS N-NUMBER HAD I BEEN SO INCLINED. HOWEVER, MY FIRST INSTINCT WAS TO INITIATE AN AVOIDANCE MANEUVER. THERE WAS A SIGNIFICANT SPD DIFFERENTIAL. MY AIRSPD WAS ABOUT 80 KTS IN CLB WHILE THE MOONEY WAS PROBABLY CRUISING AROUND 15000 FT. SINCE THE MOONEY WAS AT 4000 FT MSL, I WOULD SPECULATE HE WAS ON AN IFR FLT PLAN. THE MOONEY WAS ABOVE ME AND HIDDEN BY MY R WING. I WAS BELOW THE MOONEY AND MAY HAVE BEEN HIDDEN UNDER HIS L WING. THE MOONEY APCHED FROM MY R REAR. ABOUT THE ONLY WAY I MIGHT HAVE SEEN THE MOONEY SOONER WOULD HAVE BEEN IF I HAD RAISED THE R WING SIGNIFICANTLY TO CHK FOR TFC WITHIN 15-30 SECONDS PRIOR TO THE NMAC.
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.