Air carrier X GPWS climb from assigned altitude.

Attributes
ACN	230731
Time
Date	199301
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : tnp
State Reference	NV
Altitude	msl bound lower : 7000 msl bound upper : 7800
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : psp tower : cmi
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other cruise other descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 10900 flight time type : 700
ASRS Report	230731
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 220 flight time total : 7000 flight time type : 2000
ASRS Report	230732
Events
Anomaly	altitude deviation : excursion from assigned altitude other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : exited adverse environment flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Air carrier X passed over tnp at 11000 ft MSL and the controller gave us direct palm springs and descend to 7000 ft. The controller then gave us a 220 degree heading. Right after reaching 7000 ft, the GPWS gave us a 'terrain, terrain' warning and I began a climb until the warning quit. We were in an overcast layer at the time that started (tops) at 7800 ft. We broke out of the cloud layer and continued to the psp airport under visual conditions.

Original NASA ASRS Text

Title: ACR X GPWS CLB FROM ASSIGNED ALT.

Narrative: ACR X PASSED OVER TNP AT 11000 FT MSL AND THE CTLR GAVE US DIRECT PALM SPRINGS AND DSND TO 7000 FT. THE CTLR THEN GAVE US A 220 DEG HDG. RIGHT AFTER REACHING 7000 FT, THE GPWS GAVE US A 'TERRAIN, TERRAIN' WARNING AND I BEGAN A CLB UNTIL THE WARNING QUIT. WE WERE IN AN OVCST LAYER AT THE TIME THAT STARTED (TOPS) AT 7800 FT. WE BROKE OUT OF THE CLOUD LAYER AND CONTINUED TO THE PSP ARPT UNDER VISUAL CONDITIONS.

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.