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A300 flight crew, attempting to reduce airspeed and begin descent on the madwin arrival into oak, are initially above 250 KTS below 10000 ft before recognizing their error.
| Attributes | |
| ACN | 567848 |
| Time | |
| Date | 200212 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : nct.tracon |
| State Reference | CA |
| Altitude | msl single value : 9800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : nct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : nct.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | descent : approach |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : flight engineer pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 14300 flight time type : 2200 |
| ASRS Report | 567848 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : far other anomaly |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued advisory controller : issued new clearance |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While descending on the madwin 4 arrival to oakland, ca, we crossed sharr intersection at 10000 ft and 280 KTS (a not to exceed speed assigned by ATC). We queried the controller about crossing catty intersection at 8000 ft, as we were approaching catty and would not be able to make the 8000 ft crossing if we didn't start down soon. The controller then gave us the 8000 ft crossing restr at catty. I immediately start out of 10000 ft to make the restr, but I was still at 280 KTS. The controller asked us about our airspeed, and we responded '280 KTS.' this occurred when we were at 9750 ft, and I immediately slowed to 240 KTS with speed brakes. He pointed out traffic ahead for us to follow, and said that we were 80 KTS faster. I slowed another 80 KTS to follow traffic. There was no further comment from the controller about our airspeed, so I don't think there was any spacing problem as this aircraft was 5 mi ahead of us, but we were above 250 KTS slightly below 10000 ft before I began to slow. I think the problem lies with both the controller and ourselves. The controller was late giving us the crossing restr -- causing us to rush. I think our inattn on the airspeed was caused by fatigue, as this was the last day of an 8 day trip, and we had flown 29 hard hours of flying with 5 transcontinental xings and 2 legs on this last day.
Original NASA ASRS Text
Title: A300 FLC, ATTEMPTING TO REDUCE AIRSPD AND BEGIN DSCNT ON THE MADWIN ARR INTO OAK, ARE INITIALLY ABOVE 250 KTS BELOW 10000 FT BEFORE RECOGNIZING THEIR ERROR.
Narrative: WHILE DSNDING ON THE MADWIN 4 ARR TO OAKLAND, CA, WE CROSSED SHARR INTXN AT 10000 FT AND 280 KTS (A NOT TO EXCEED SPD ASSIGNED BY ATC). WE QUERIED THE CTLR ABOUT XING CATTY INTXN AT 8000 FT, AS WE WERE APCHING CATTY AND WOULD NOT BE ABLE TO MAKE THE 8000 FT XING IF WE DIDN'T START DOWN SOON. THE CTLR THEN GAVE US THE 8000 FT XING RESTR AT CATTY. I IMMEDIATELY START OUT OF 10000 FT TO MAKE THE RESTR, BUT I WAS STILL AT 280 KTS. THE CTLR ASKED US ABOUT OUR AIRSPD, AND WE RESPONDED '280 KTS.' THIS OCCURRED WHEN WE WERE AT 9750 FT, AND I IMMEDIATELY SLOWED TO 240 KTS WITH SPD BRAKES. HE POINTED OUT TFC AHEAD FOR US TO FOLLOW, AND SAID THAT WE WERE 80 KTS FASTER. I SLOWED ANOTHER 80 KTS TO FOLLOW TFC. THERE WAS NO FURTHER COMMENT FROM THE CTLR ABOUT OUR AIRSPD, SO I DON'T THINK THERE WAS ANY SPACING PROB AS THIS ACFT WAS 5 MI AHEAD OF US, BUT WE WERE ABOVE 250 KTS SLIGHTLY BELOW 10000 FT BEFORE I BEGAN TO SLOW. I THINK THE PROB LIES WITH BOTH THE CTLR AND OURSELVES. THE CTLR WAS LATE GIVING US THE XING RESTR -- CAUSING US TO RUSH. I THINK OUR INATTN ON THE AIRSPD WAS CAUSED BY FATIGUE, AS THIS WAS THE LAST DAY OF AN 8 DAY TRIP, AND WE HAD FLOWN 29 HARD HRS OF FLYING WITH 5 TRANSCONTINENTAL XINGS AND 2 LEGS ON THIS LAST DAY.
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.