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|
Attributes | |
ACN | 596277 |
Time | |
Date | 200310 |
Day | Sat |
Local Time Of Day | 0001 To 0600 |
Place | |
Locale Reference | airport : ord.airport |
State Reference | IL |
Altitude | msl single value : 3000 |
Environment | |
Light | Night |
Aircraft 1 | |
Controlling Facilities | tracon : c90.tracon |
Operator | common carrier : air carrier |
Make Model Name | A320 |
Operating Under FAR Part | Part 121 |
Navigation In Use | ils localizer & glide slope : 22r |
Flight Phase | descent : approach |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : instrument pilot : multi engine |
ASRS Report | 596277 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Events | |
Anomaly | aircraft equipment problem : less severe non adherence : company policies non adherence : published procedure non adherence : far other anomaly |
Independent Detector | other flight crewa |
Resolutory Action | none taken : anomaly accepted |
Supplementary | |
Problem Areas | Aircraft Flight Crew Human Performance |
Primary Problem | Flight Crew Human Performance |
Narrative:
On approach into ord for runway 22R, speed was at our discretion. We were approximately 250 KIAS about 4.5 mi from FAF for ILS runway 22R and descending out of 3000 ft. WX was VFR and approach was visual. Captain disconnected autoplt and called for gear down final descent checklist and deployed full speed brakes. Aircraft started to slow, captain selected managed speed and disconnected autothrottles with disconnect switch, but failed to bring throttles to idle. This in turn made aircraft go to climb power. Upon acceleration, we tended to get high and fast crossing FAF until he finally got throttles to idle. Speed was above 200 KIAS and by this point aircraft was hard to get down and slow down. Despite verbal crew member concern that fom as well as stable approach parameters could possibly be exceeded, the captain felt approach could be conducted safely and elected to continue. Although there were some GPWS alerts, airplane was stable to land and did so smoothly in the touchdown zone and came to a stop less than 6000 ft down the runway. However, most likely stabilized approach criteria were infringed upon. At no time was airplane in danger of harming person or property. Contributing factors were too fast and big mistake with autothrottle.
Original NASA ASRS Text
Title: AN A320 FLT CREW MISMANAGES THE AUTOTHROTTLES RESULTING IN AN UNSTABILIZED APCH.
Narrative: ON APCH INTO ORD FOR RWY 22R, SPD WAS AT OUR DISCRETION. WE WERE APPROX 250 KIAS ABOUT 4.5 MI FROM FAF FOR ILS RWY 22R AND DSNDING OUT OF 3000 FT. WX WAS VFR AND APCH WAS VISUAL. CAPT DISCONNECTED AUTOPLT AND CALLED FOR GEAR DOWN FINAL DSCNT CHKLIST AND DEPLOYED FULL SPD BRAKES. ACFT STARTED TO SLOW, CAPT SELECTED MANAGED SPD AND DISCONNECTED AUTOTHROTTLES WITH DISCONNECT SWITCH, BUT FAILED TO BRING THROTTLES TO IDLE. THIS IN TURN MADE ACFT GO TO CLB PWR. UPON ACCELERATION, WE TENDED TO GET HIGH AND FAST XING FAF UNTIL HE FINALLY GOT THROTTLES TO IDLE. SPD WAS ABOVE 200 KIAS AND BY THIS POINT ACFT WAS HARD TO GET DOWN AND SLOW DOWN. DESPITE VERBAL CREW MEMBER CONCERN THAT FOM AS WELL AS STABLE APCH PARAMETERS COULD POSSIBLY BE EXCEEDED, THE CAPT FELT APCH COULD BE CONDUCTED SAFELY AND ELECTED TO CONTINUE. ALTHOUGH THERE WERE SOME GPWS ALERTS, AIRPLANE WAS STABLE TO LAND AND DID SO SMOOTHLY IN THE TOUCHDOWN ZONE AND CAME TO A STOP LESS THAN 6000 FT DOWN THE RWY. HOWEVER, MOST LIKELY STABILIZED APCH CRITERIA WERE INFRINGED UPON. AT NO TIME WAS AIRPLANE IN DANGER OF HARMING PERSON OR PROPERTY. CONTRIBUTING FACTORS WERE TOO FAST AND BIG MISTAKE WITH AUTOTHROTTLE.
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.