B737 flight crew on vectors by approach controller at boi experienced GPWS.

Attributes
ACN	639793
Time
Date	200412
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : boi.airport
State Reference	ID
Altitude	msl single value : 7000
Environment
Flight Conditions	IMC
Aircraft 1
Controlling Facilities	tracon : boi.tracon artcc : zse.artcc
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 250 flight time total : 25500 flight time type : 6682
ASRS Report	639793
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	other anomaly other other spatial deviation
Independent Detector	aircraft equipment : gpws other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Aircraft FAA
Primary Problem	Aircraft

Narrative:

We were being vectored downwind for left traffic runway 10R abeam boi airport descending to 7000 ft. Just prior to leveloff in IMC, terrain warning activated. First officer was flying and initiated recovery maneuver and warning ceased. We notified ATC and returned to 7000 ft without any further warnings. The next morning I spoke with a controller in the tower and was informed that they were having problems with this and that they were keeping a log of such occurrences. She told me that some of the controllers were not using 7000 ft, the MVA in this area, because of this problem. We experienced no further problems, but I thought you might want to look into this situation.

Original NASA ASRS Text

Title: B737 FLT CREW ON VECTORS BY APCH CTLR AT BOI EXPERIENCED GPWS.

Narrative: WE WERE BEING VECTORED DOWNWIND FOR L TFC RWY 10R ABEAM BOI ARPT DSNDING TO 7000 FT. JUST PRIOR TO LEVELOFF IN IMC, TERRAIN WARNING ACTIVATED. FO WAS FLYING AND INITIATED RECOVERY MANEUVER AND WARNING CEASED. WE NOTIFIED ATC AND RETURNED TO 7000 FT WITHOUT ANY FURTHER WARNINGS. THE NEXT MORNING I SPOKE WITH A CTLR IN THE TWR AND WAS INFORMED THAT THEY WERE HAVING PROBS WITH THIS AND THAT THEY WERE KEEPING A LOG OF SUCH OCCURRENCES. SHE TOLD ME THAT SOME OF THE CTLRS WERE NOT USING 7000 FT, THE MVA IN THIS AREA, BECAUSE OF THIS PROB. WE EXPERIENCED NO FURTHER PROBS, BUT I THOUGHT YOU MIGHT WANT TO LOOK INTO THIS SIT.

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.