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B737-200 first officer was not able to slow aircraft. The captain had to take over and disconnect the autoplt.
| Attributes | |
| ACN | 516867 |
| Time | |
| Date | 200107 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : las.airport |
| State Reference | NV |
| Altitude | msl single value : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : las.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 25l |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : las.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : multi engine pilot : atp pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 50 flight time total : 14000 flight time type : 5000 |
| ASRS Report | 516867 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : company policies non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance none taken : insufficient time other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance FAA Company Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Approach had given us a visual and follow the aircraft ahead of us. We were told to slow to 230 KTS. The first officer was flying. He tried to slow using the speed bug/autothrottle, but as the autoplt was in approach mode on the ILS, slowing the aircraft would take way too much time. The aircraft ahead slowed a lot more quickly than we did. I finally had to disconnect the autoplt and get the aircraft slowed to a reasonable speed. ATC did us a favor by sidestepping the aircraft ahead to the parallel runway. There was about 3 mi separation throughout, but had we persisted in trying to fly the aircraft through the autoplt, there would have been way less separation. Part of the problem is the increasing reliance on automation (our B737 crews fly the -200 and the -300 and are not dedicated to a single variant.) I am finding fewer and fewer pilots out there who actually want to hand fly the aircraft first (and let the automation catch up with them).
Original NASA ASRS Text
Title: B737-200 FO WAS NOT ABLE TO SLOW ACFT. THE CAPT HAD TO TAKE OVER AND DISCONNECT THE AUTOPLT.
Narrative: APCH HAD GIVEN US A VISUAL AND FOLLOW THE ACFT AHEAD OF US. WE WERE TOLD TO SLOW TO 230 KTS. THE FO WAS FLYING. HE TRIED TO SLOW USING THE SPD BUG/AUTOTHROTTLE, BUT AS THE AUTOPLT WAS IN APCH MODE ON THE ILS, SLOWING THE ACFT WOULD TAKE WAY TOO MUCH TIME. THE ACFT AHEAD SLOWED A LOT MORE QUICKLY THAN WE DID. I FINALLY HAD TO DISCONNECT THE AUTOPLT AND GET THE ACFT SLOWED TO A REASONABLE SPD. ATC DID US A FAVOR BY SIDESTEPPING THE ACFT AHEAD TO THE PARALLEL RWY. THERE WAS ABOUT 3 MI SEPARATION THROUGHOUT, BUT HAD WE PERSISTED IN TRYING TO FLY THE ACFT THROUGH THE AUTOPLT, THERE WOULD HAVE BEEN WAY LESS SEPARATION. PART OF THE PROB IS THE INCREASING RELIANCE ON AUTOMATION (OUR B737 CREWS FLY THE -200 AND THE -300 AND ARE NOT DEDICATED TO A SINGLE VARIANT.) I AM FINDING FEWER AND FEWER PLTS OUT THERE WHO ACTUALLY WANT TO HAND FLY THE ACFT FIRST (AND LET THE AUTOMATION CATCH UP WITH THEM).
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.