<< >> NASA ASRS Report 206820, April 1992

Small aircraft on right base approach has near midair collision with medium large transport on left base, when complying with tower instructions.

Attributes
ACN	206820
Time
Date	199204
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : teb
State Reference	NJ
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : teb
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	descent : approach other
Flight Plan	None
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 10 flight time total : 2000
ASRS Report	206820
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	conflict : nmac
Independent Detector	other other : unspecified cockpit
Resolutory Action	flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance

Narrative:

Reported right downwind runway 1 teb. Cleared to land by tower. Started base. Heard tower advise an medium large transport that he was #2 for the airport. Tower instructed medium large transport to slow down. (He was on left base for runway 1.) I advised tower that I was close in and could make approach. I had the medium large transport in sight. Tower instructed me to make a right 360. I advised tower that this instruction would take me right into the path of the medium large transport. I asked if the medium large transport had me in sight (no response by medium large transport or tower). I asked to make a left turn to avoid the traffic. Tower again instructed I make a 360 degree to the right. The right turn put the medium large transport in a blind spot (below my left wing). Dropped left wing to check on medium large transport. Aircraft converging. Made steep diving turn to avoid collision.

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Original NASA ASRS Text

Title: SMA ON R BASE APCH HAS NMAC WITH MLG ON L BASE, WHEN COMPLYING WITH TWR INSTRUCTIONS.

Narrative: RPTED R DOWNWIND RWY 1 TEB. CLRED TO LAND BY TWR. STARTED BASE. HEARD TWR ADVISE AN MLG THAT HE WAS #2 FOR THE ARPT. TWR INSTRUCTED MLG TO SLOW DOWN. (HE WAS ON L BASE FOR RWY 1.) I ADVISED TWR THAT I WAS CLOSE IN AND COULD MAKE APCH. I HAD THE MLG IN SIGHT. TWR INSTRUCTED ME TO MAKE A R 360. I ADVISED TWR THAT THIS INSTRUCTION WOULD TAKE ME RIGHT INTO THE PATH OF THE MLG. I ASKED IF THE MLG HAD ME IN SIGHT (NO RESPONSE BY MLG OR TWR). I ASKED TO MAKE A L TURN TO AVOID THE TFC. TWR AGAIN INSTRUCTED I MAKE A 360 DEG TO THE R. THE R TURN PUT THE MLG IN A BLIND SPOT (BELOW MY L WING). DROPPED L WING TO CHK ON MLG. ACFT CONVERGING. MADE STEEP DIVING TURN TO AVOID COLLISION.

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.