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            37000 Feet | Browse and search NASA's Aviation Safety Reporting System  | 
            
                
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| Attributes | |
| ACN | 455990 | 
| Time | |
| Date | 199911 | 
| Day | Mon | 
| Local Time Of Day | 0601 To 1200 | 
| Place | |
| State Reference | MB | 
| Altitude | msl bound lower : 3200 msl bound upper : 3500  | 
| Environment | |
| Flight Conditions | VMC | 
| Light | Daylight | 
| Aircraft 1 | |
| Controlling Facilities | tower : sat.tower | 
| Operator | common carrier : air carrier | 
| Make Model Name | DC-9 Undifferentiated or Other Model | 
| Operating Under FAR Part | Part 121 | 
| Flight Phase | descent : intermediate altitude | 
| Route In Use | arrival : on vectors | 
| Flight Plan | IFR | 
| Person 1 | |
| Affiliation | company : air carrier | 
| Function | flight crew : first officer | 
| Qualification | pilot : cfi pilot : flight engineer pilot : atp  | 
| Experience | flight time last 90 days : 220 flight time total : 6500 flight time type : 1500  | 
| ASRS Report | 455990 | 
| Person 2 | |
| Affiliation | company : air carrier | 
| Function | flight crew : captain oversight : pic  | 
| Qualification | pilot : atp | 
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance  | 
| Independent Detector | other flight crewa other flight crewb  | 
| Resolutory Action | flight crew : returned to assigned altitude | 
| Consequence | Other | 
| Supplementary | |
| Problem Areas | Flight Crew Human Performance | 
| Primary Problem | Flight Crew Human Performance | 
| Air Traffic Incident | Pilot Deviation | 
Narrative:
I was PF, cleared to descend to 3500 ft. Captain and I made all company calls and followed procedures. For some reason I had 3000 ft in my mind. I descended to approximately 3200 ft. Altitude alert sounded and I immediately corrected to 3500 ft. No response from ATC.
Original NASA ASRS Text
Title: FO OF DC9 OVERSHOT ASSIGNED ALT DURING RADAR VECTOR DSCNT AND RETURNED TO ASSIGNED IMMEDIATELY WITH NO COMMENT FROM APCH CTL.
Narrative: I WAS PF, CLRED TO DSND TO 3500 FT. CAPT AND I MADE ALL COMPANY CALLS AND FOLLOWED PROCS. FOR SOME REASON I HAD 3000 FT IN MY MIND. I DSNDED TO APPROX 3200 FT. ALT ALERT SOUNDED AND I IMMEDIATELY CORRECTED TO 3500 FT. NO RESPONSE FROM ATC.
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.