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First officer of a DC9 overshot assigned altitude during climb. First officer made a correction back at once and nothing was said by ATC. The first officer blames his inoperative altitude alert system for the mistake.
| Attributes | |
| ACN | 418190 |
| Time | |
| Date | 199810 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : air |
| State Reference | OH |
| Altitude | msl bound lower : 23000 msl bound upper : 23500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute airway : zob |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : commercial pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 14000 flight time type : 6000 |
| ASRS Report | 418190 |
| 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 |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cleared to FL230. Altitude alerter was not working and I overshot to FL235 and quickly corrected. No other aircraft in area. Nothing said by ZOB.
Original NASA ASRS Text
Title: FO OF A DC9 OVERSHOT ASSIGNED ALT DURING CLB. FO MADE A CORRECTION BACK AT ONCE AND NOTHING WAS SAID BY ATC. THE FO BLAMES HIS INOP ALT ALERT SYS FOR THE MISTAKE.
Narrative: CLRED TO FL230. ALT ALERTER WAS NOT WORKING AND I OVERSHOT TO FL235 AND QUICKLY CORRECTED. NO OTHER ACFT IN AREA. NOTHING SAID BY ZOB.
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.