<< >> NASA ASRS Report 188293, September 1991

Flight crew of widebody transport final approach to ord had TCASII RA. Sighted traffic. To avoid collision, went around.

Attributes
ACN	188293
Time
Date	199109
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	msl bound lower : 1200 msl bound upper : 1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ord
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Flight Phase	descent : approach descent other landing : go around
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : flight engineer pilot : instrument pilot : atp
Experience	flight time last 90 days : 100 flight time total : 11900 flight time type : 300
ASRS Report	188293
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : atp
Events
Anomaly	conflict : nmac non adherence : far other anomaly other other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

While flying the ILS approach to runway 4R, we received a TCASII warning for traffic at our current position. After establishing visual contact with the traffic, and determining that a continued approach would result in a collision, we executed a go around. After a telephone discussion with the tower supervisor, we discovered that the aircraft had never been in contact with the tower, and was not tracked to its destination after the incident.

Related reports:

• Widebody transport flight crew almost turns onto closed runw...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: FLC OF WDB FINAL APCH TO ORD HAD TCASII RA. SIGHTED TFC. TO AVOID COLLISION, WENT AROUND.

Narrative: WHILE FLYING THE ILS APCH TO RWY 4R, WE RECEIVED A TCASII WARNING FOR TFC AT OUR CURRENT POS. AFTER ESTABLISHING VISUAL CONTACT WITH THE TFC, AND DETERMINING THAT A CONTINUED APCH WOULD RESULT IN A COLLISION, WE EXECUTED A GAR. AFTER A TELEPHONE DISCUSSION WITH THE TWR SUPVR, WE DISCOVERED THAT THE ACFT HAD NEVER BEEN IN CONTACT WITH THE TWR, AND WAS NOT TRACKED TO ITS DEST AFTER THE INCIDENT.

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.