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Altitude deviation altitude overshot. A tired air carrier crew climbed through their assigned altitude. The altitude alert system reminds them and they descend to the proper altitude.
| Attributes | |
| ACN | 298800 |
| Time | |
| Date | 199503 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dbq |
| State Reference | IA |
| Altitude | msl bound lower : 23000 msl bound upper : 23400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 17000 flight time type : 7000 |
| ASRS Report | 298800 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 8000 flight time type : 4000 |
| ASRS Report | 299331 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Climbed through assigned altitude. Assigned 23000 ft climbed to 23400 ft. Noticed excursion and returned to the assigned altitude. Altitude alerter aural indication brought excursion to both pilots' attention. Contributing to this excursion: lack of sleep due to cold, 7 out of 8 previous days on duty.
Original NASA ASRS Text
Title: ALTDEV ALT OVERSHOT. A TIRED ACR CREW CLBED THROUGH THEIR ASSIGNED ALT. THE ALT ALERT SYS REMINDS THEM AND THEY DSND TO THE PROPER ALT.
Narrative: CLBED THROUGH ASSIGNED ALT. ASSIGNED 23000 FT CLBED TO 23400 FT. NOTICED EXCURSION AND RETURNED TO THE ASSIGNED ALT. ALT ALERTER AURAL INDICATION BROUGHT EXCURSION TO BOTH PLTS' ATTN. CONTRIBUTING TO THIS EXCURSION: LACK OF SLEEP DUE TO COLD, 7 OUT OF 8 PREVIOUS DAYS ON DUTY.
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.