BE1900 and C421 or C414 had near midair collision in ZOB class east airspace.

Attributes
ACN	511038
Time
Date	200105
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : phx.airport
State Reference	AZ
Altitude	msl single value : 10500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab.artcc
Operator	common carrier : air taxi
Make Model Name	Beech 1900
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zab.artcc
Operator	Other
Make Model Name	Cessna Twin Piston Undifferentiated or Other Model
Operating Under FAR Part	other : unknown
Flight Phase	other
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : instrument pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 290 flight time total : 2850 flight time type : 950
ASRS Report	511038
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Events
Anomaly	conflict : nmac conflict : airborne critical other anomaly other
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action none taken : detected after the fact other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Problem Areas	FAA Airspace Structure
Primary Problem	Ambiguous

Narrative:

Climbing out on eagul 1 departure from phx, we got a traffic alert on TCASII. We immediately spotted the aircraft which appeared to be a C421 or C414. We stopped our climb and the cessna passed over us at about 200 ft above our altitude. I feel if the TCASII had not worked, we would be on the 6 O'clock news.

Original NASA ASRS Text

Title: BE1900 AND C421 OR C414 HAD NMAC IN ZOB CLASS E AIRSPACE.

Narrative: CLBING OUT ON EAGUL 1 DEP FROM PHX, WE GOT A TFC ALERT ON TCASII. WE IMMEDIATELY SPOTTED THE ACFT WHICH APPEARED TO BE A C421 OR C414. WE STOPPED OUR CLB AND THE CESSNA PASSED OVER US AT ABOUT 200 FT ABOVE OUR ALT. I FEEL IF THE TCASII HAD NOT WORKED, WE WOULD BE ON THE 6 O'CLOCK NEWS.

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.