Close proximity air carrier-medium large transport GA-small aircraft near floor of bos TCA.

Attributes
ACN	124968
Time
Date	198910
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos
State Reference	MA
Altitude	msl bound lower : 2800 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bos
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other other
Route In Use	approach : visual enroute : on vectors
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 : atp pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 8500 flight time type : 900
ASRS Report	124968
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 100 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Air carrier medium large transport making approach to runway 15R in left turn to final at 3000' assigned by ATC, small aircraft flashed by captain's window about 100' away. I reported to approach and he confirmed small aircraft transponder readout at 2800' and advised of numerous targets in bedford area around hanscom airport. Small aircraft very close to floor of TCA.

Original NASA ASRS Text

Title: CLOSE PROX ACR-MLG GA-SMA NEAR FLOOR OF BOS TCA.

Narrative: ACR MLG MAKING APCH TO RWY 15R IN LEFT TURN TO FINAL AT 3000' ASSIGNED BY ATC, SMA FLASHED BY CAPT'S WINDOW ABOUT 100' AWAY. I REPORTED TO APCH AND HE CONFIRMED SMA TRANSPONDER READOUT AT 2800' AND ADVISED OF NUMEROUS TARGETS IN BEDFORD AREA AROUND HANSCOM ARPT. SMA VERY CLOSE TO FLOOR OF TCA.

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.