MD80 crew responds to GPWS terrain alert on approach in oak airspace.

Attributes
ACN	421550
Time
Date	199811
Day	Sun
Place
Locale Reference	atc facility : sjc airport : sjc
State Reference	CA
Altitude	msl bound lower : 5000 msl bound upper : 5000
Aircraft 1
Controlling Facilities	tracon : oak
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	cruise other descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	421550
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
ASRS Report	421367
Events
Anomaly	altitude deviation : excursion from assigned altitude other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action flight crew : exited adverse environment
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

GPWS terrain warning activated on the jaws arrival to sjc on the sns 318 degree radial at 35 DME at 5000 ft. We executed the escape maneuver and climbed to approximately 8000 ft. We advised ATC and they descended us back down and vectored us for the approach to runway 12R. We experienced. No further warnings. Supplemental information from acn 421367: spot terrain approximately 10 mi southwest of sjc is 3231 ft and sjc MSA is 5500 ft.

Original NASA ASRS Text

Title: MD80 CREW RESPONDS TO GPWS TERRAIN ALERT ON APCH IN OAK AIRSPACE.

Narrative: GPWS TERRAIN WARNING ACTIVATED ON THE JAWS ARR TO SJC ON THE SNS 318 DEG RADIAL AT 35 DME AT 5000 FT. WE EXECUTED THE ESCAPE MANEUVER AND CLBED TO APPROX 8000 FT. WE ADVISED ATC AND THEY DSNDED US BACK DOWN AND VECTORED US FOR THE APCH TO RWY 12R. WE EXPERIENCED. NO FURTHER WARNINGS. SUPPLEMENTAL INFO FROM ACN 421367: SPOT TERRAIN APPROX 10 MI SW OF SJC IS 3231 FT AND SJC MSA IS 5500 FT.

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.