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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Altitude deviation altitude overshot. Air carrier on descent, goes below its assigned altitude and controller intervenes.
| Attributes | |
| ACN | 304600 |
| Time | |
| Date | 199505 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lax |
| State Reference | CA |
| Altitude | msl bound lower : 8000 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 5500 flight time type : 180 |
| ASRS Report | 304600 |
| 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 controllera |
| 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:
Both crew thought was cleared to 8000 ft and 8000 ft was set in altitude alert. Descended through 9000 ft and ATC said he wanted us at 9000 ft. So, we climbed a few hundred ft back to 9000 ft. We were VFR and did see some traffic, but was not a threat to us. We should make sure we both agree what altitude is set in altitude alert window.
Original NASA ASRS Text
Title: ALTDEV ALT OVERSHOT. ACR ON DSCNT, GOES BELOW ITS ASSIGNED ALT AND CTLR INTERVENES.
Narrative: BOTH CREW THOUGHT WAS CLRED TO 8000 FT AND 8000 FT WAS SET IN ALT ALERT. DSNDED THROUGH 9000 FT AND ATC SAID HE WANTED US AT 9000 FT. SO, WE CLBED A FEW HUNDRED FT BACK TO 9000 FT. WE WERE VFR AND DID SEE SOME TFC, BUT WAS NOT A THREAT TO US. WE SHOULD MAKE SURE WE BOTH AGREE WHAT ALT IS SET IN ALT ALERT WINDOW.
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.