Small aircraft and small transport have a very close near midair collision.

Attributes
ACN	262174
Time
Date	199401
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : 48v
State Reference	CO
Altitude	msl bound lower : 7500 msl bound upper : 7465
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	VFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 10 flight time total : 200 flight time type : 55
ASRS Report	262174
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 35
Supplementary
Air Traffic Incident	other

Narrative:

Climbing through 7500 ft, I spotted a cessna or piper twin at my 9:30, approximately 500 ft away, slightly higher, traveling north. My heading was approximately 300 degrees. I took immediate action by dropping the nose to avoid a collision. He passed overhead of me behind the cabin. I regained my visual fix on it at my 3:30 position. From my estimate of no change in altitude of the other plane, he (she) had no idea I was there. My climb attitude, with the other plane higher and slightly behind and to the left, my left wing masked the part of the sky and direction of his approach. His cruise altitude, position in the left side of the cockpit, and my altitude lower than his, he probably couldn't see me, even though I was at his 2:30 position. Moral of this story: lifting a wing occasionally and really straining to look around could be preventative. Had my head been down looking at charts or adjusting radios....hmm. Fortunately, I was taking in the scenery and spotted and reacted to the situation in time.

Original NASA ASRS Text

Title: SMA AND SMT HAVE A VERY CLOSE NMAC.

Narrative: CLBING THROUGH 7500 FT, I SPOTTED A CESSNA OR PIPER TWIN AT MY 9:30, APPROX 500 FT AWAY, SLIGHTLY HIGHER, TRAVELING N. MY HDG WAS APPROX 300 DEGS. I TOOK IMMEDIATE ACTION BY DROPPING THE NOSE TO AVOID A COLLISION. HE PASSED OVERHEAD OF ME BEHIND THE CABIN. I REGAINED MY VISUAL FIX ON IT AT MY 3:30 POS. FROM MY ESTIMATE OF NO CHANGE IN ALT OF THE OTHER PLANE, HE (SHE) HAD NO IDEA I WAS THERE. MY CLB ATTITUDE, WITH THE OTHER PLANE HIGHER AND SLIGHTLY BEHIND AND TO THE L, MY L WING MASKED THE PART OF THE SKY AND DIRECTION OF HIS APCH. HIS CRUISE ALT, POS IN THE L SIDE OF THE COCKPIT, AND MY ALT LOWER THAN HIS, HE PROBABLY COULDN'T SEE ME, EVEN THOUGH I WAS AT HIS 2:30 POS. MORAL OF THIS STORY: LIFTING A WING OCCASIONALLY AND REALLY STRAINING TO LOOK AROUND COULD BE PREVENTATIVE. HAD MY HEAD BEEN DOWN LOOKING AT CHARTS OR ADJUSTING RADIOS....HMM. FORTUNATELY, I WAS TAKING IN THE SCENERY AND SPOTTED AND REACTED TO THE SIT IN TIME.

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.