<< >> NASA ASRS Report 640870, December 2004

While in a box pattern on a delay vector by sbn approach, an SF34 crew spot a long eze aircraft approximately 100 ft away on a converging course. The crew did not have time to take evasive action.

Attributes
ACN	640870
Time
Date	200412
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sbn.tracon
State Reference	IN
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sbn.tracon
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Flight Phase	descent : holding
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Amateur (Home) Built
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 5000 flight time type : 3200
ASRS Report	640870
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	atc equipment other atc equipment : radar other controllera other controllerb other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Miss Distance	horizontal : 100 vertical : 0
Supplementary
Problem Areas	ATC Human Performance Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

While en route to chicago mdw, south bend approach advised us that chicago approach did not take the handoff and, therefore, was going to give us a radar vector box holding pattern. After completing our first pattern, we were assigned a heading 340 degrees, maintain 5000 ft. Upon rollout, we observed long eze approximately 1000 ft moving opposite our direction. There was no opportunity for evasive action. TCASII was not used since the avionics vent was deferred. We notified sbn approach of the aircraft. At that time they began to observe a primary target. There was no way to either see or avoid long eze in a timely manner.

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Original NASA ASRS Text

Title: WHILE IN A BOX PATTERN ON A DELAY VECTOR BY SBN APCH, AN SF34 CREW SPOT A LONG EZE ACFT APPROX 100 FT AWAY ON A CONVERGING COURSE. THE CREW DID NOT HAVE TIME TO TAKE EVASIVE ACTION.

Narrative: WHILE ENRTE TO CHICAGO MDW, SOUTH BEND APCH ADVISED US THAT CHICAGO APCH DID NOT TAKE THE HDOF AND, THEREFORE, WAS GOING TO GIVE US A RADAR VECTOR BOX HOLDING PATTERN. AFTER COMPLETING OUR FIRST PATTERN, WE WERE ASSIGNED A HDG 340 DEGS, MAINTAIN 5000 FT. UPON ROLLOUT, WE OBSERVED LONG EZE APPROX 1000 FT MOVING OPPOSITE OUR DIRECTION. THERE WAS NO OPPORTUNITY FOR EVASIVE ACTION. TCASII WAS NOT USED SINCE THE AVIONICS VENT WAS DEFERRED. WE NOTIFIED SBN APCH OF THE ACFT. AT THAT TIME THEY BEGAN TO OBSERVE A PRIMARY TARGET. THERE WAS NO WAY TO EITHER SEE OR AVOID LONG EZE IN A TIMELY MANNER.

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.