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A320 crew executed a GPWS escape maneuver with an emergency maximum rate climb until the warning stopped. Aircraft was at the MVA at the time of occurrence.
| Attributes | |
| ACN | 548018 |
| Time | |
| Date | 200205 |
| Day | Mon |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : oak.airport |
| State Reference | CA |
| Altitude | msl bound lower : 5000 msl bound upper : 5500 |
| Environment | |
| Weather Elements | Rain Thunderstorm |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Route In Use | approach : traffic pattern arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 548018 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | inflight encounter : weather other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment : gpws other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Weather FAA Aircraft |
| Primary Problem | FAA |
Narrative:
With oak approach, 5000 ft given, 270 degree heading for left downwind leg, deviated for WX between 270-290 degree heading. Noticed oak hills below while navigating in and out of WX. While in WX, GPWS sounded' terrain, pull up, terrain, pull up.' first officer was keeping close eye on RA prior to encounter, due to our proximity. We initiated toga power (A320), pitched up, cleared conflict at 5500 ft. Airspeed increased to 275 KTS. No full recovery. Since we had arrs into runway 19 into sfo area above and fully aware of terrain, RA went from 2400 ft to 1800 at lowest when recovery began, and warnings concluded after approximately 5300 ft. After warnings, informed tower and proceeded to land runway 11.
Original NASA ASRS Text
Title: A320 CREW EXECUTED A GPWS ESCAPE MANEUVER WITH AN EMER MAX RATE CLB UNTIL THE WARNING STOPPED. ACFT WAS AT THE MVA AT THE TIME OF OCCURRENCE.
Narrative: WITH OAK APCH, 5000 FT GIVEN, 270 DEG HDG FOR L DOWNWIND LEG, DEVIATED FOR WX BTWN 270-290 DEG HDG. NOTICED OAK HILLS BELOW WHILE NAVING IN AND OUT OF WX. WHILE IN WX, GPWS SOUNDED' TERRAIN, PULL UP, TERRAIN, PULL UP.' FO WAS KEEPING CLOSE EYE ON RA PRIOR TO ENCOUNTER, DUE TO OUR PROX. WE INITIATED TOGA POWER (A320), PITCHED UP, CLRED CONFLICT AT 5500 FT. AIRSPD INCREASED TO 275 KTS. NO FULL RECOVERY. SINCE WE HAD ARRS INTO RWY 19 INTO SFO AREA ABOVE AND FULLY AWARE OF TERRAIN, RA WENT FROM 2400 FT TO 1800 AT LOWEST WHEN RECOVERY BEGAN, AND WARNINGS CONCLUDED AFTER APPROX 5300 FT. AFTER WARNINGS, INFORMED TWR AND PROCEEDED TO LAND RWY 11.
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.