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MD80S, after descending to get out of choppy air, flight crew were so intent on finding smooth air that they forgot to slow the aircraft to 250 KTS when descending through 10000 ft.
| Attributes | |
| ACN | 376990 |
| Time | |
| Date | 199708 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 7000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 376990 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 376989 |
| Events | |
| Anomaly | inflight encounter : weather non adherence : far other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were at 11000 ft and experiencing moderate chop. Advised ord approach that we were slowing to 280 KTS due to chop. When we were finally cleared to lower altitude, I began an immediate descent to get out of the moderate chop and shot right through 10000 ft without slowing to 250 KTS. I became fixated on the chop problem and forgot to make the speed reduction.
Original NASA ASRS Text
Title: MD80S, AFTER DSNDING TO GET OUT OF CHOPPY AIR, FLC WERE SO INTENT ON FINDING SMOOTH AIR THAT THEY FORGOT TO SLOW THE ACFT TO 250 KTS WHEN DSNDING THROUGH 10000 FT.
Narrative: WE WERE AT 11000 FT AND EXPERIENCING MODERATE CHOP. ADVISED ORD APCH THAT WE WERE SLOWING TO 280 KTS DUE TO CHOP. WHEN WE WERE FINALLY CLRED TO LOWER ALT, I BEGAN AN IMMEDIATE DSCNT TO GET OUT OF THE MODERATE CHOP AND SHOT RIGHT THROUGH 10000 FT WITHOUT SLOWING TO 250 KTS. I BECAME FIXATED ON THE CHOP PROB AND FORGOT TO MAKE THE SPD REDUCTION.
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.