Small aircraft X unauthorized uncoordinated penetration of air traffic area airspace. Operational de...

Attributes
ACN	226092
Time
Date	199211
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : gfk
State Reference	ND
Altitude	agl bound lower : 1000 agl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : gfk tower : gfk
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	226092
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : published procedure other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure Operational Deviation

Narrative:

An small transport was a stage ii aircraft inbound from the southwest. Approach called tower reported to me that the small transport was 4 mi southwest. I told approach I had an aircraft on short final for runway 35L which I was not talking to. Then approach said small aircraft X was 1 mi final, I said he was over the runway, which he was. Small aircraft X contacted tower (me) 1/2 mi north of runway 35L and said he was on crosswind runway 35L. Small aircraft X flew the entire length of runway 35L without talking to tower. This situation occurred just after a very busy spurt at gfk. Visibility was deteriorating because of snow showers and planes were becoming very hard to see. It could have been a very serious situation. If gfk had radar, the situation never would have happened. This is a common occurrence when approach fails to ship aircraft or the aircraft fail on their own to switch frequency.

Original NASA ASRS Text

Title: SMA X UNAUTHORIZED UNCOORDINATED PENETRATION OF ATA AIRSPACE. OPDEV.

Narrative: AN SMT WAS A STAGE II ACFT INBOUND FROM THE SW. APCH CALLED TWR RPTED TO ME THAT THE SMT WAS 4 MI SW. I TOLD APCH I HAD AN ACFT ON SHORT FINAL FOR RWY 35L WHICH I WAS NOT TALKING TO. THEN APCH SAID SMA X WAS 1 MI FINAL, I SAID HE WAS OVER THE RWY, WHICH HE WAS. SMA X CONTACTED TWR (ME) 1/2 MI N OF RWY 35L AND SAID HE WAS ON XWIND RWY 35L. SMA X FLEW THE ENTIRE LENGTH OF RWY 35L WITHOUT TALKING TO TWR. THIS SITUATION OCCURRED JUST AFTER A VERY BUSY SPURT AT GFK. VISIBILITY WAS DETERIORATING BECAUSE OF SNOW SHOWERS AND PLANES WERE BECOMING VERY HARD TO SEE. IT COULD HAVE BEEN A VERY SERIOUS SITUATION. IF GFK HAD RADAR, THE SITUATION NEVER WOULD HAVE HAPPENED. THIS IS A COMMON OCCURRENCE WHEN APCH FAILS TO SHIP ACFT OR THE ACFT FAIL ON THEIR OWN TO SWITCH FREQ.

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.

Small aircraft X unauthorized uncoordinated penetration of air traffic area airspace. Operational deviation.