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Altitude deviation altitude overshot -- air carrier descends through its assigned altitude while the flight crew is briefing the approach procedure.
| Attributes | |
| ACN | 311480 |
| Time | |
| Date | 199507 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 10600 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord tower : pne |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other descent other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 15000 flight time type : 10000 |
| ASRS Report | 311480 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 175 flight time total : 9000 flight time type : 3000 |
| ASRS Report | 311251 |
| Events | |
| Anomaly | altitude deviation : overshoot altitude deviation : excursion from assigned altitude 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 |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While briefing for approach I heard the altitude alert go off at 10600 ft. I immediately climbed back to 11000 ft. No conflict was stated. Could have happened if I failed to arm or if the altitude didn't capture.
Original NASA ASRS Text
Title: ALTDEV ALT OVERSHOT -- ACR DSNDS THROUGH ITS ASSIGNED ALT WHILE THE FLC IS BRIEFING THE APCH PROC.
Narrative: WHILE BRIEFING FOR APCH I HEARD THE ALT ALERT GO OFF AT 10600 FT. I IMMEDIATELY CLBED BACK TO 11000 FT. NO CONFLICT WAS STATED. COULD HAVE HAPPENED IF I FAILED TO ARM OR IF THE ALT DIDN'T CAPTURE.
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.