Near midair collision. Student pilot of a C172 descended to avoid a collision with a C152 while on the downwind leg for a touch-and-go landing. The C152 was instructed by tower to fly over the airport and enter a downwind leg for the other parallel runway.

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Attributes
ACN	417786
Time
Date	199810
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : luk airport : luk
State Reference	OH
Altitude	msl bound lower : 1500 msl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : luk
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	other
Flight Plan	None
Aircraft 2
Make Model Name	Cessna 152
Operating Under FAR Part	Part 91
Flight Phase	other
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : student
Experience	flight time last 90 days : 15 flight time total : 15 flight time type : 15
ASRS Report	417786
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : instructor
Qualification	pilot : instrument pilot : commercial pilot : cfi
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 50 vertical : 150
Supplementary
Primary Problem	ATC Human Performance

Narrative:

On oct/xa/98, myself and my cfii departed runway 21L at luk for a flight lesson which consisted of touch-and-go lndgs on runway 21L. The controller instructed me to report my left base for runway 21L for each touch-and-go. After approximately 3 touch-and-goes a C152 called the tower from east of the airport and requested touch-and-go lndgs. The tower told the C152 to do a midfield crosswind and enter the right downwind for runway 21R. The tower advised the C152 that there was traffic in the downwind for runway 21L (which was us). The C152 reported having us in sight. The tower made no calls to us for the possible traffic doing the midfield crosswind. Just as I leveled off at approximately 1300 ft MSL (pattern altitude at luk is 1500 ft MSL), the C152 was right on top of us (presumably at or around pattern altitude). I immediately pushed the plane over to avoid the certain collision. For safety there should be a policy at luk to instruct all aircraft executing a midfield crosswind to cross at 500 ft above pattern altitude.

Original NASA ASRS Text

Title: NMAC. STUDENT PLT OF A C172 DSNDED TO AVOID A COLLISION WITH A C152 WHILE ON THE DOWNWIND LEG FOR A TOUCH-AND-GO LNDG. THE C152 WAS INSTRUCTED BY TWR TO FLY OVER THE ARPT AND ENTER A DOWNWIND LEG FOR THE OTHER PARALLEL RWY.

Narrative: ON OCT/XA/98, MYSELF AND MY CFII DEPARTED RWY 21L AT LUK FOR A FLT LESSON WHICH CONSISTED OF TOUCH-AND-GO LNDGS ON RWY 21L. THE CTLR INSTRUCTED ME TO RPT MY L BASE FOR RWY 21L FOR EACH TOUCH-AND-GO. AFTER APPROX 3 TOUCH-AND-GOES A C152 CALLED THE TWR FROM E OF THE ARPT AND REQUESTED TOUCH-AND-GO LNDGS. THE TWR TOLD THE C152 TO DO A MIDFIELD XWIND AND ENTER THE R DOWNWIND FOR RWY 21R. THE TWR ADVISED THE C152 THAT THERE WAS TFC IN THE DOWNWIND FOR RWY 21L (WHICH WAS US). THE C152 RPTED HAVING US IN SIGHT. THE TWR MADE NO CALLS TO US FOR THE POSSIBLE TFC DOING THE MIDFIELD XWIND. JUST AS I LEVELED OFF AT APPROX 1300 FT MSL (PATTERN ALT AT LUK IS 1500 FT MSL), THE C152 WAS RIGHT ON TOP OF US (PRESUMABLY AT OR AROUND PATTERN ALT). I IMMEDIATELY PUSHED THE PLANE OVER TO AVOID THE CERTAIN COLLISION. FOR SAFETY THERE SHOULD BE A POLICY AT LUK TO INSTRUCT ALL ACFT EXECUTING A MIDFIELD XWIND TO CROSS AT 500 FT ABOVE PATTERN ALT.

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.