Near midair collision in the traffic pattern.

Attributes
ACN	297893
Time
Date	199503
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bed
State Reference	MA
Altitude	msl bound lower : 1800 msl bound upper : 1800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bed
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude other
Flight Plan	None
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	other : unknown
Flight Phase	descent other other
Route In Use	approach : visual
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 20 flight time total : 3700 flight time type : 1400
ASRS Report	297893
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : clearance non adherence : far other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 500 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

As I was climbing on crosswind after takeoff runway 5, a lear jet passed close behind me on downwind. Neither of us was warned by tower. Tower said his radar was out, and he had expected lear jet on base. Both pilots saw each other, but passed closer than comfortable. ATIS should state radar is out so pilots are alerted to be extra careful and not rely on usual service.

Original NASA ASRS Text

Title: NMAC IN THE TFC PATTERN.

Narrative: AS I WAS CLBING ON XWIND AFTER TKOF RWY 5, A LEAR JET PASSED CLOSE BEHIND ME ON DOWNWIND. NEITHER OF US WAS WARNED BY TWR. TWR SAID HIS RADAR WAS OUT, AND HE HAD EXPECTED LEAR JET ON BASE. BOTH PLTS SAW EACH OTHER, BUT PASSED CLOSER THAN COMFORTABLE. ATIS SHOULD STATE RADAR IS OUT SO PLTS ARE ALERTED TO BE EXTRA CAREFUL AND NOT RELY ON USUAL SVC.

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.