Small aircraft twin has near midair collision with small aircraft single while in the class B airspa...

Attributes
ACN	312749
Time
Date	199508
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : apa
State Reference	CO
Altitude	msl bound lower : 7900 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den
Operator	general aviation : instructional
Make Model Name	PA-44 Seminole Turbo Seminole
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	VFR
Aircraft 2
Make Model Name	Cessna Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : instrument
Experience	flight time last 90 days : 120 flight time total : 1150 flight time type : 125
ASRS Report	312749
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

We were in a PA-44-180 (seminole) at 8000 ft MSL sbound about 10 NM northwest of centennial airport. A small cessna (single-engine) passed under us about a hundred ft lower. Immediately the pilot of the cessna said on frequency that he saw us ('I have the traffic'). We were never given a TA. The controller then came on and asked if anyone on 128.45 could hear him. A couple of aircraft (including ourselves) replied that we could. It seemed like he might have been covering up his mistake.

Original NASA ASRS Text

Title: SMA TWIN HAS NMAC WITH SMA SINGLE WHILE IN THE CLASS B AIRSPACE.

Narrative: WE WERE IN A PA-44-180 (SEMINOLE) AT 8000 FT MSL SBOUND ABOUT 10 NM NW OF CENTENNIAL ARPT. A SMALL CESSNA (SINGLE-ENG) PASSED UNDER US ABOUT A HUNDRED FT LOWER. IMMEDIATELY THE PLT OF THE CESSNA SAID ON FREQ THAT HE SAW US ('I HAVE THE TFC'). WE WERE NEVER GIVEN A TA. THE CTLR THEN CAME ON AND ASKED IF ANYONE ON 128.45 COULD HEAR HIM. A COUPLE OF ACFT (INCLUDING OURSELVES) REPLIED THAT WE COULD. IT SEEMED LIKE HE MIGHT HAVE BEEN COVERING UP HIS MISTAKE.

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.

Small aircraft twin has near midair collision with small aircraft single while in the class B airspace.