<< >> NASA ASRS Report 383595, October 1997

A military F1 aircraft on downwind leg comes in close proximity to aircraft in the traffic pattern for an adjacent airport. The controller issued traffic to the F1 resulting in a turn towards the runway. The controller claims this situation occurs often.

Attributes
ACN	383595
Time
Date	199710
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : abi
State Reference	TX
Altitude	msl bound lower : 800 msl bound upper : 800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : abi
Operator	other
Make Model Name	Mitsubishi Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	other
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	other
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller non radar : 4 controller radar : 8
ASRS Report	383595
Person 2
Affiliation	government : military
Function	flight crew : single pilot
Qualification	pilot : military
Events
Anomaly	conflict : airborne less severe non adherence : far other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 300
Supplementary
Primary Problem	Airport
Air Traffic Incident	other
Situations
Airport	other physical facility

Narrative:

An F1 was in pattern on runway 17L, turning base. Several aircraft appeared to be in the pattern at elmdale airpark located 1 mi northeast of abi airport. I was not in communication with any of the aircraft at elmdale (they are not required to be). I advised the F1 that there appeared to be pattern traffic at elmdale. I then observed traffic on BRITE and out of the window that appeared to be turning directly toward the F1. The F1 then said he had traffic and was turning toward runway. This situation occurs quite often, and I feel it is a dangerous situation, especially when high speed military aircraft are in our traffic pattern.

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Original NASA ASRS Text

Title: A MIL F1 ACFT ON DOWNWIND LEG COMES IN CLOSE PROX TO ACFT IN THE TFC PATTERN FOR AN ADJACENT ARPT. THE CTLR ISSUED TFC TO THE F1 RESULTING IN A TURN TOWARDS THE RWY. THE CTLR CLAIMS THIS SIT OCCURS OFTEN.

Narrative: AN F1 WAS IN PATTERN ON RWY 17L, TURNING BASE. SEVERAL ACFT APPEARED TO BE IN THE PATTERN AT ELMDALE AIRPARK LOCATED 1 MI NE OF ABI ARPT. I WAS NOT IN COM WITH ANY OF THE ACFT AT ELMDALE (THEY ARE NOT REQUIRED TO BE). I ADVISED THE F1 THAT THERE APPEARED TO BE PATTERN TFC AT ELMDALE. I THEN OBSERVED TFC ON BRITE AND OUT OF THE WINDOW THAT APPEARED TO BE TURNING DIRECTLY TOWARD THE F1. THE F1 THEN SAID HE HAD TFC AND WAS TURNING TOWARD RWY. THIS SIT OCCURS QUITE OFTEN, AND I FEEL IT IS A DANGEROUS SIT, ESPECIALLY WHEN HIGH SPD MIL ACFT ARE IN OUR TFC PATTERN.

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.