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Captain of a canadair CL65 regional jet overshot assigned altitude during climb due to prematurely setting the altimeter to 29 pt 92 for FL180 and above.
| Attributes | |
| ACN | 456650 |
| Time | |
| Date | 199912 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : dqn.vortac |
| State Reference | OH |
| Altitude | msl bound lower : 17000 msl bound upper : 17700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 11000 flight time type : 5000 |
| ASRS Report | 456650 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : published procedure non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : fo altimeter other controllera other flight crewa |
| Resolutory Action | controller : issued alert flight crew : returned to assigned altitude other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Altitude bust. ATC cleared us to climb to 17000 ft. Passing 15000 ft, during the climb, I made the mistake of pushing the button that sets the altimeter setting to 29.92. The actual altimeter setting was about 30.75, so with the improper altimeter setting, the airplane leveled off at about 17700 ft. The first officer's altimeter setting was correct and he almost immediately noticed the discrepancy between the altimeters, and the altitude deviation. ATC also almost immediately noticed the altitude bust and provided us with the correct altimeter setting. When climbing to the flight level altitudes, it is my personal habit practice to set the altimeter to 29.92 when passing through 15000 ft. I was not paying enough attention and mistakenly set 29.92 when we were only climbing to 17000 ft.
Original NASA ASRS Text
Title: CAPT OF A CANADAIR CL65 REGIONAL JET OVERSHOT ASSIGNED ALT DURING CLB DUE TO PREMATURELY SETTING THE ALTIMETER TO 29 PT 92 FOR FL180 AND ABOVE.
Narrative: ALT BUST. ATC CLRED US TO CLB TO 17000 FT. PASSING 15000 FT, DURING THE CLB, I MADE THE MISTAKE OF PUSHING THE BUTTON THAT SETS THE ALTIMETER SETTING TO 29.92. THE ACTUAL ALTIMETER SETTING WAS ABOUT 30.75, SO WITH THE IMPROPER ALTIMETER SETTING, THE AIRPLANE LEVELED OFF AT ABOUT 17700 FT. THE FO'S ALTIMETER SETTING WAS CORRECT AND HE ALMOST IMMEDIATELY NOTICED THE DISCREPANCY BTWN THE ALTIMETERS, AND THE ALTDEV. ATC ALSO ALMOST IMMEDIATELY NOTICED THE ALT BUST AND PROVIDED US WITH THE CORRECT ALTIMETER SETTING. WHEN CLBING TO THE FLT LEVEL ALTS, IT IS MY PERSONAL HABIT PRACTICE TO SET THE ALTIMETER TO 29.92 WHEN PASSING THROUGH 15000 FT. I WAS NOT PAYING ENOUGH ATTN AND MISTAKENLY SET 29.92 WHEN WE WERE ONLY CLBING TO 17000 FT.
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.