Operational deviation uga below MVA.

Attributes
ACN	291953
Time
Date	199412
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : slc
State Reference	UT
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zlc
Make Model Name	Caravan 1 208A
Operating Under FAR Part	other : unknown
Flight Phase	cruise other cruise other other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller military : 5 controller non radar : 8 controller radar : 8
ASRS Report	291953
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Events
Anomaly	non adherence : published procedure non adherence : required legal separation other spatial deviation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

On sector 7 during the usual XA00 pm push, slc approach control mandated that the ZLC sector 7 controller feed all aircraft filed less than 230 KTS to them on V21 regardless of how they were filed. This operation is not covered by a LOA between ZLC and slc approach. During this operation slc approach 'shut off' arrs from ZLC sector 7 (due to medical emergency). As a result, I had to vector many aircraft to prevent the aircraft from penetrating approach airspace, and to keep separation. A C208 at 11000 ft MSL was vectored to a 360 degree heading for a traffic situation. While on the heading I assigned, the C208 entered an area where my minimum IFR altitude is 11700 ft. The MSAW was activated and I vectored the aircraft to lower terrain. A higher altitude was not available due to traffic at 12000 ft. The main factor for my error was due to highly irregular arrival procedures imposed by slc approach. And the poor procedures used by ZLC tmu (allowing the number of aircraft that were in sector 7 at the time). No active ground delay program was in place at the time of reduced acceptance by slc approach. The whole situation was avoidable by using standard procedures agreed upon in the LOA between the 2 facilities.

Original NASA ASRS Text

Title: OPDEV UGA BELOW MVA.

Narrative: ON SECTOR 7 DURING THE USUAL XA00 PM PUSH, SLC APCH CTL MANDATED THAT THE ZLC SECTOR 7 CTLR FEED ALL ACFT FILED LESS THAN 230 KTS TO THEM ON V21 REGARDLESS OF HOW THEY WERE FILED. THIS OP IS NOT COVERED BY A LOA BTWN ZLC AND SLC APCH. DURING THIS OP SLC APCH 'SHUT OFF' ARRS FROM ZLC SECTOR 7 (DUE TO MEDICAL EMER). AS A RESULT, I HAD TO VECTOR MANY ACFT TO PREVENT THE ACFT FROM PENETRATING APCH AIRSPACE, AND TO KEEP SEPARATION. A C208 AT 11000 FT MSL WAS VECTORED TO A 360 DEG HDG FOR A TFC SIT. WHILE ON THE HDG I ASSIGNED, THE C208 ENTERED AN AREA WHERE MY MINIMUM IFR ALT IS 11700 FT. THE MSAW WAS ACTIVATED AND I VECTORED THE ACFT TO LOWER TERRAIN. A HIGHER ALT WAS NOT AVAILABLE DUE TO TFC AT 12000 FT. THE MAIN FACTOR FOR MY ERROR WAS DUE TO HIGHLY IRREGULAR ARR PROCS IMPOSED BY SLC APCH. AND THE POOR PROCS USED BY ZLC TMU (ALLOWING THE NUMBER OF ACFT THAT WERE IN SECTOR 7 AT THE TIME). NO ACTIVE GND DELAY PROGRAM WAS IN PLACE AT THE TIME OF REDUCED ACCEPTANCE BY SLC APCH. THE WHOLE SIT WAS AVOIDABLE BY USING STANDARD PROCS AGREED UPON IN THE LOA BTWN THE 2 FACILITIES.

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.