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|
Attributes | |
ACN | 535819 |
Time | |
Date | 200201 |
Day | Tue |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | navaid : ils.ils |
State Reference | CA |
Aircraft 1 | |
Controlling Facilities | tower : oak.tower tower : fok.tower |
Operator | common carrier : air carrier |
Make Model Name | A320 |
Operating Under FAR Part | Part 121 |
Flight Phase | descent : approach |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : atp |
ASRS Report | 535819 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
ASRS Report | 535817 |
Events | |
Anomaly | non adherence : published procedure non adherence : far non adherence : required legal separation other anomaly other anomaly other spatial deviation |
Independent Detector | aircraft equipment : gpws |
Resolutory Action | flight crew : took evasive action other |
Consequence | other other |
Supplementary | |
Problem Areas | FAA Airport Airspace Structure Flight Crew Human Performance |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
Captain was flying approach into oakland runway 29. We were between catty and alvar and had called the runway in sight. We were given instructions: 2000 ft at 6 NM cleared visual runway 29, traffic to follow a B737 over the dumbarton bridge. Speed 210 KTS, open descent, speed brakes in use, altitude was between 3500-2500 ft. I estimate 3-5 NM short of alvar. We were looking for traffic now over the toll plaza when we got egpws 'terrain, pull up,' I suspect due to the sink rate. The terrain display showed a small amount of green about 5 mi on either side, and I had the hills and antenna in sight out of my window. The captain went to execute the terrain maneuver by going toga thrust and pulling in pitch. I warned about flap speed and retracted the flaps at about 230 KTS, but the excess thrust carried us to something north of 250 KIAS and less than 260 KIAS. I estimate 258 degrees and we wrote it up as a 28 KT overspd. Approach and landing uneventful. Supplemental information from acn 535817: I had selected flaps 1 degree and we received a terrain warning. In executing a pull-up from terrain, I overspd the flaps by 28 KTS which lasted approximately 20 seconds while the flaps were being retracted. There was some confusion after the event as I selected toga thrust as part of the maneuver. It was, however, VFR and the approach could be re-entered without any difficulty or unusual maneuvering.
Original NASA ASRS Text
Title: AN A320 CREW, ON APCH TO OAK, RECEIVED A GPWS WARNING 'TOO LOW TERRAIN' WITH A 'PULL UP' COMMAND.
Narrative: CAPT WAS FLYING APCH INTO OAKLAND RWY 29. WE WERE BTWN CATTY AND ALVAR AND HAD CALLED THE RWY IN SIGHT. WE WERE GIVEN INSTRUCTIONS: 2000 FT AT 6 NM CLRED VISUAL RWY 29, TFC TO FOLLOW A B737 OVER THE DUMBARTON BRIDGE. SPD 210 KTS, OPEN DSCNT, SPD BRAKES IN USE, ALT WAS BTWN 3500-2500 FT. I ESTIMATE 3-5 NM SHORT OF ALVAR. WE WERE LOOKING FOR TFC NOW OVER THE TOLL PLAZA WHEN WE GOT EGPWS 'TERRAIN, PULL UP,' I SUSPECT DUE TO THE SINK RATE. THE TERRAIN DISPLAY SHOWED A SMALL AMOUNT OF GREEN ABOUT 5 MI ON EITHER SIDE, AND I HAD THE HILLS AND ANTENNA IN SIGHT OUT OF MY WINDOW. THE CAPT WENT TO EXECUTE THE TERRAIN MANEUVER BY GOING TOGA THRUST AND PULLING IN PITCH. I WARNED ABOUT FLAP SPD AND RETRACTED THE FLAPS AT ABOUT 230 KTS, BUT THE EXCESS THRUST CARRIED US TO SOMETHING N OF 250 KIAS AND LESS THAN 260 KIAS. I ESTIMATE 258 DEGS AND WE WROTE IT UP AS A 28 KT OVERSPD. APCH AND LNDG UNEVENTFUL. SUPPLEMENTAL INFO FROM ACN 535817: I HAD SELECTED FLAPS 1 DEG AND WE RECEIVED A TERRAIN WARNING. IN EXECUTING A PULL-UP FROM TERRAIN, I OVERSPD THE FLAPS BY 28 KTS WHICH LASTED APPROX 20 SECONDS WHILE THE FLAPS WERE BEING RETRACTED. THERE WAS SOME CONFUSION AFTER THE EVENT AS I SELECTED TOGA THRUST AS PART OF THE MANEUVER. IT WAS, HOWEVER, VFR AND THE APCH COULD BE RE-ENTERED WITHOUT ANY DIFFICULTY OR UNUSUAL MANEUVERING.
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.