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An air carrier MD80 flight crew exceeded their assigned speed when the flight crew failed to insure that the controller's instructions were understood by the PF.
| Attributes | |
| ACN | 426280 |
| Time | |
| Date | 199901 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pxr |
| State Reference | AZ |
| Altitude | msl bound lower : 12000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Flight Phase | cruise other cruise other descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time total : 20000 |
| ASRS Report | 426280 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 200 flight time total : 5000 flight time type : 500 |
| ASRS Report | 426128 |
| Events | |
| Anomaly | non adherence : clearance non adherence : far |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During descent to phx on the karlo 7 arrival, I exceeded the speed restr at plsnt. Normal procedure is to cross plsnt at 12000 ft, 280 KTS. However, during the descent clearance we were given a 250 KT restr. While it is normal to confirm all altitude changes, I failed to notice the difference in speed. A contributing factor was my attention was split between flying the airplane and other duties at the time. The copilot assumed I knew about the speed restr even though I hadn't been working the radios. Though much emphasis is placed on altitude restr, perhaps an equal amount should be spent on speed restrs too.
Original NASA ASRS Text
Title: AN ACR MD80 FLC EXCEEDED THEIR ASSIGNED SPD WHEN THE FLC FAILED TO INSURE THAT THE CTLR'S INSTRUCTIONS WERE UNDERSTOOD BY THE PF.
Narrative: DURING DSCNT TO PHX ON THE KARLO 7 ARR, I EXCEEDED THE SPD RESTR AT PLSNT. NORMAL PROC IS TO CROSS PLSNT AT 12000 FT, 280 KTS. HOWEVER, DURING THE DSCNT CLRNC WE WERE GIVEN A 250 KT RESTR. WHILE IT IS NORMAL TO CONFIRM ALL ALT CHANGES, I FAILED TO NOTICE THE DIFFERENCE IN SPD. A CONTRIBUTING FACTOR WAS MY ATTN WAS SPLIT BTWN FLYING THE AIRPLANE AND OTHER DUTIES AT THE TIME. THE COPLT ASSUMED I KNEW ABOUT THE SPD RESTR EVEN THOUGH I HADN'T BEEN WORKING THE RADIOS. THOUGH MUCH EMPHASIS IS PLACED ON ALT RESTR, PERHAPS AN EQUAL AMOUNT SHOULD BE SPENT ON SPD RESTRS TOO.
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.