DC10 flight crew on vectors to oak runway 11 received GPWS.

Attributes
ACN	568487
Time
Date	200212
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : oak.airport
State Reference	CA
Altitude	msl single value : 3100
Aircraft 1
Controlling Facilities	tracon : nct.tracon
Operator	common carrier : air carrier
Make Model Name	DC-10 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 : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 100 flight time total : 6500 flight time type : 600
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	aircraft equipment : gpws other flight crewa
Resolutory Action	flight crew : took evasive action flight crew : returned to assigned altitude flight crew : overrode automation
Supplementary
Problem Areas	Weather Airspace Structure ATC Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

After flying the manteca arrival into oakland, and on a vector from approach control for an ILS to runway 11 at oakland, our GPWS activated. As a result, we left our assigned altitude when we performed our mandatory GPWS maneuver. As we began our climb, the captain immediately notified approach control of what we were doing. After a climb of about 1200-1400 ft, we returned to our assigned altitude. Subsequent approach and landing at oak was uneventful.

Original NASA ASRS Text

Title: DC10 FLC ON VECTORS TO OAK RWY 11 RECEIVED GPWS.

Narrative: AFTER FLYING THE MANTECA ARR INTO OAKLAND, AND ON A VECTOR FROM APCH CTL FOR AN ILS TO RWY 11 AT OAKLAND, OUR GPWS ACTIVATED. AS A RESULT, WE LEFT OUR ASSIGNED ALT WHEN WE PERFORMED OUR MANDATORY GPWS MANEUVER. AS WE BEGAN OUR CLB, THE CAPT IMMEDIATELY NOTIFIED APCH CTL OF WHAT WE WERE DOING. AFTER A CLB OF ABOUT 1200-1400 FT, WE RETURNED TO OUR ASSIGNED ALT. SUBSEQUENT APCH AND LNDG AT OAK WAS UNEVENTFUL.

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.