<< >> NASA ASRS Report 404192, April 1998

A controller reports that an air carrier DH8 was released for takeoff on runway 29 as an air carrier BE02 was on a two mile final approach to runway 11. This is something that the controller says often happens because of the facility's policies and their agreements with other facilities.

Attributes
ACN	404192
Time
Date	199804
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : jnc airport : gjt
State Reference	CO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : gjt
Operator	common carrier : air carrier
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Beech 1900
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	404192
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

We have been instructed by management to provide visual approach separation between IFR departures and IFR arrs only when this tower is in radio contact with the IFR arrival aircraft or the approach controller instructs otherwise. Numerous conflicts have occurred as a result of this policy/procedure. These conflicts have not and will not be reported because the tower controllers will be held responsible for the conflicts. In accordance with ATC manual 7110.65 VFR tower controllers are responsible for visual separation between arrs and departures when departing aircraft are 'released subject your discretion reference (the arrival aircraft)' and not when the arrival is in radio contact with the tower. An air carrier DH8 was released to denver departing runway 29 climbing to 14000 when a BE02, an air carrier, was on ILS to runway 11. The DH8 was released when the BE02 was on a two mi final to runway 11 and not in radio contact with the tower. When the BE02 came on frequency I questioned the release. This procedure is an accident waiting to happen, just like a previous accident.

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Original NASA ASRS Text

Title: A CTLR REPORTS THAT AN ACR DH8 WAS RELEASED FOR TKOF ON RWY 29 AS AN ACR BE02 WAS ON A TWO MILE FINAL APCH TO RWY 11. THIS IS SOMETHING THAT THE CTLR SAYS OFTEN HAPPENS BECAUSE OF THE FACILITY'S POLICIES AND THEIR AGREEMENTS WITH OTHER FACILITIES.

Narrative: WE HAVE BEEN INSTRUCTED BY MANAGEMENT TO PROVIDE VISUAL APCH SEPARATION BETWEEN IFR DEPS AND IFR ARRS ONLY WHEN THIS TWR IS IN RADIO CONTACT WITH THE IFR ARR ACFT OR THE APCH CTLR INSTRUCTS OTHERWISE. NUMEROUS CONFLICTS HAVE OCCURRED AS A RESULT OF THIS POLICY/PROC. THESE CONFLICTS HAVE NOT AND WILL NOT BE REPORTED BECAUSE THE TWR CTLRS WILL BE HELD RESPONSIBLE FOR THE CONFLICTS. IAW ATC MANUAL 7110.65 VFR TWR CTLRS ARE RESPONSIBLE FOR VISUAL SEPARATION BETWEEN ARRS AND DEPS WHEN DEPARTING ACFT ARE 'RELEASED SUBJECT YOUR DISCRETION REFERENCE (THE ARR ACFT)' AND NOT WHEN THE ARR IS IN RADIO CONTACT WITH THE TWR. AN ACR DH8 WAS RELEASED TO DENVER DEPARTING RWY 29 CLBING TO 14000 WHEN A BE02, AN ACR, WAS ON ILS TO RWY 11. THE DH8 WAS RELEASED WHEN THE BE02 WAS ON A TWO MI FINAL TO RWY 11 AND NOT IN RADIO CONTACT WITH THE TWR. WHEN THE BE02 CAME ON FREQUENCY I QUESTIONED THE RELEASE. THIS PROC IS AN ACCIDENT WAITING TO HAPPEN, JUST LIKE A PREVIOUS ACCIDENT.

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.