TA issued to a B757 crew on ILS approach runway 26L landing ont approximately 1 mi east of the FAF.

Attributes
ACN	628408
Time
Date	200408
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ont.airport
State Reference	CA
Altitude	msl bound lower : 2300 msl bound upper : 3100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ont.tower
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 26l
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar controller : radar pilot : instrument
Experience	controller non radar : 7 controller radar : 3 controller time certified in position1 : 3 flight time total : 190
ASRS Report	628408
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe
Independent Detector	atc equipment other atc equipment : tower brite radar other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure ATC Human Performance
Primary Problem	Ambiguous

Narrative:

B757 on ILS approach runway 26L had seen issued unknown traffic C172 northbound off his nose and lower.

Original NASA ASRS Text

Title: TA ISSUED TO A B757 CREW ON ILS APCH RWY 26L LNDG ONT APPROX 1 MI E OF THE FAF.

Narrative: B757 ON ILS APCH RWY 26L HAD SEEN ISSUED UNKNOWN TFC C172 NBOUND OFF HIS NOSE AND LOWER.

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.