<< >> NASA ASRS Report 533662, December 2001

Beech jet 400 first officer dived to avoid a cessna on a collision course at same altitude at 1500 ft 20 mi out from destination airport.

Attributes
ACN	533662
Time
Date	200112
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ssi.airport
State Reference	GA
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx.artcc
Operator	general aviation : personal
Make Model Name	Beechjet 400
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zjx.artcc
Operator	general aviation : personal
Make Model Name	Cessna Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Person 1
Affiliation	other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 40 flight time total : 2500 flight time type : 500
ASRS Report	533662
Person 2
Affiliation	other
Function	flight crew : first officer
Events
Anomaly	conflict : airborne critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 400 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

We were level at 1500 ft looking for ssi, with the local approach control. Immediately, my partner, the PF began a quick nose-down descent, and pointed out a cessna at our altitude approaching from our left side. If we had not descended when we did, it would have resulted in a midair collision. At once, as we cleared the traffic, I informed ATC of our action and why. ATC responded they still had no target, even after we explained location of traffic and our deviation of a few hundred ft below our assigned altitude. (That was all we had time to descend.) we had no indication that ATC considered our action a problem. I submit this report as a precaution.

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Original NASA ASRS Text

Title: BEECH JET 400 FO DIVED TO AVOID A CESSNA ON A COLLISION COURSE AT SAME ALT AT 1500 FT 20 MI OUT FROM DEST ARPT.

Narrative: WE WERE LEVEL AT 1500 FT LOOKING FOR SSI, WITH THE LCL APCH CTL. IMMEDIATELY, MY PARTNER, THE PF BEGAN A QUICK NOSE-DOWN DSCNT, AND POINTED OUT A CESSNA AT OUR ALT APCHING FROM OUR L SIDE. IF WE HAD NOT DSNDED WHEN WE DID, IT WOULD HAVE RESULTED IN A MIDAIR COLLISION. AT ONCE, AS WE CLRED THE TFC, I INFORMED ATC OF OUR ACTION AND WHY. ATC RESPONDED THEY STILL HAD NO TARGET, EVEN AFTER WE EXPLAINED LOCATION OF TFC AND OUR DEV OF A FEW HUNDRED FT BELOW OUR ASSIGNED ALT. (THAT WAS ALL WE HAD TIME TO DSND.) WE HAD NO INDICATION THAT ATC CONSIDERED OUR ACTION A PROB. I SUBMIT THIS RPT AS A PRECAUTION.

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.