A B727-200 cargo flight receives a gpwas at 9500 ft 12 mi ese of cpr, wy.

Attributes
ACN	495578
Time
Date	200012
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : cpr.airport
State Reference	WY
Altitude	msl single value : 9500
Environment
Flight Conditions	IMC
Weather Elements	Snow Turbulence
Light	Night
Aircraft 1
Controlling Facilities	tracon : cpr.tracon
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 75 flight time total : 3600 flight time type : 338
ASRS Report	495578
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe inflight encounter : turbulence inflight encounter : weather non adherence : far non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment : gpws other flight crewa
Resolutory Action	flight crew : returned to assigned altitude flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Miss Distance	vertical : 950
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor ATC Human Performance Airspace Structure
Primary Problem	Airspace Structure

Narrative:

Flight departed holding ddy VOR and vectored for ILS runway 3 cpr. Flight descended to assigned altitude of 9500 ft. Level at 9500 ft on downwind, gpwas activated with 'whoop, whoop, pull up, terrain....' the second 'terrain' stopped short as captain initiated an immediate climb to 11000 ft MSL. The first officer informed ATC of the emergency escape maneuver due to gpwas activation. ATC responded that we were in a 9500 FPM safe vectoring area and wanted to know if we could again descend and continue the approach, which we did. Flight continued and landed.

Original NASA ASRS Text

Title: A B727-200 CARGO FLT RECEIVES A GPWAS AT 9500 FT 12 MI ESE OF CPR, WY.

Narrative: FLT DEPARTED HOLDING DDY VOR AND VECTORED FOR ILS RWY 3 CPR. FLT DSNDED TO ASSIGNED ALT OF 9500 FT. LEVEL AT 9500 FT ON DOWNWIND, GPWAS ACTIVATED WITH 'WHOOP, WHOOP, PULL UP, TERRAIN....' THE SECOND 'TERRAIN' STOPPED SHORT AS CAPT INITIATED AN IMMEDIATE CLB TO 11000 FT MSL. THE FO INFORMED ATC OF THE EMER ESCAPE MANEUVER DUE TO GPWAS ACTIVATION. ATC RESPONDED THAT WE WERE IN A 9500 FPM SAFE VECTORING AREA AND WANTED TO KNOW IF WE COULD AGAIN DSND AND CONTINUE THE APCH, WHICH WE DID. FLT CONTINUED AND LANDED.

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.