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MD80 cleared from 15000 ft to 12000 ft. In descent at 12500 ft approach controller asks why they hadn't leveled at 13000 ft. Gotcha. First officer was flying, PIC had set the altitude alerter. Controller had failed to correct the wrong readback.
| Attributes | |
| ACN | 370780 |
| Time | |
| Date | 199706 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : aml |
| State Reference | VA |
| Altitude | msl bound lower : 12500 msl bound upper : 13000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : iad |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other descent other |
| Route In Use | enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 370780 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
ATC facility: washington approach. Location: armel/026/8. Approach cleared us from 15000 ft to 12000 ft. The first officer started a normal descent. Out of about 12500 ft approach asked us if we had stopped our descent at 13000 ft. Our reply was, that we were cleared to 12000 ft. Approach control then cleared us to 12000 ft. Our crew procedures were, the captain set the altitude alert at 12000 ft and I as first officer confirmed the 12000 ft was set in the window.
Original NASA ASRS Text
Title: MD80 CLRED FROM 15000 FT TO 12000 FT. IN DSCNT AT 12500 FT APCH CTLR ASKS WHY THEY HADN'T LEVELED AT 13000 FT. GOTCHA. FO WAS FLYING, PIC HAD SET THE ALT ALERTER. CTLR HAD FAILED TO CORRECT THE WRONG READBACK.
Narrative: ATC FACILITY: WASHINGTON APCH. LOCATION: ARMEL/026/8. APCH CLRED US FROM 15000 FT TO 12000 FT. THE FO STARTED A NORMAL DSCNT. OUT OF ABOUT 12500 FT APCH ASKED US IF WE HAD STOPPED OUR DSCNT AT 13000 FT. OUR REPLY WAS, THAT WE WERE CLRED TO 12000 FT. APCH CTL THEN CLRED US TO 12000 FT. OUR CREW PROCS WERE, THE CAPT SET THE ALT ALERT AT 12000 FT AND I AS FO CONFIRMED THE 12000 FT WAS SET IN THE WINDOW.
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.