Close proximity air carrier-large transport GA-small aircraft.

Attributes
ACN	82012
Time
Date	198802
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : jax
State Reference	FL
Altitude	msl bound lower : 5500 msl bound upper : 5500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : jax tower : phl
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : v51
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 10000
ASRS Report	82012
Person 2
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	conflict : nmac
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 300 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Departure control called traffic 2 times, altitude unknown at 1 O'clock. Sighted aircraft on collision course at altitude 5500'. We were climbing 2000 FPM. At 5300' took evasive action, right 45 degree bank turn to miss red and white small aircraft. No time to level off or descended or climb. Small aircraft was flying VFR, no apparent flight plan, no radio contact. Small aircraft made no attempt to evade. Small aircraft flew off radar scope west/O radio contact. Light aircraft should all have transponders and should be made to file flight plans at all times, and must be in radio contact with ATC at all times. My instincts from military flying of intercepts in air defense command prevented a certain midair collision. No passenger were hurt in this incident, nor were any crew members. We were lucky!

Original NASA ASRS Text

Title: CLOSE PROX ACR-LGT GA-SMA.

Narrative: DEP CTL CALLED TFC 2 TIMES, ALT UNKNOWN AT 1 O'CLOCK. SIGHTED ACFT ON COLLISION COURSE AT ALT 5500'. WE WERE CLBING 2000 FPM. AT 5300' TOOK EVASIVE ACTION, RIGHT 45 DEG BANK TURN TO MISS RED AND WHITE SMA. NO TIME TO LEVEL OFF OR DESCENDED OR CLB. SMA WAS FLYING VFR, NO APPARENT FLT PLAN, NO RADIO CONTACT. SMA MADE NO ATTEMPT TO EVADE. SMA FLEW OFF RADAR SCOPE W/O RADIO CONTACT. LIGHT ACFT SHOULD ALL HAVE TRANSPONDERS AND SHOULD BE MADE TO FILE FLT PLANS AT ALL TIMES, AND MUST BE IN RADIO CONTACT WITH ATC AT ALL TIMES. MY INSTINCTS FROM MIL FLYING OF INTERCEPTS IN AIR DEFENSE COMMAND PREVENTED A CERTAIN MIDAIR COLLISION. NO PAX WERE HURT IN THIS INCIDENT, NOR WERE ANY CREW MEMBERS. WE WERE LUCKY!

Data retrieved from NASA's ASRS site as of August 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.