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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Jetstream 3201 was cleared to maintain 4500 ft. While looking for traffic, first officer lowered nose and lost 300 ft.
| Attributes | |
| ACN | 369588 |
| Time | |
| Date | 199705 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 4200 msl bound upper : 4500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl tower : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 32 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 150 flight time total : 3700 flight time type : 1000 |
| ASRS Report | 369588 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 75 flight time total : 2700 flight time type : 700 |
| ASRS Report | 369600 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude 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:
In sum: air carrier jetstream 3201 was being vectored for a visual approach and was level at 4500 ft. An MD80 was 2000 ft below them. Getting very high above the GS and trying to sight the MD80, the nose was lowered and the aircraft descended to 4200 ft before excursion was noted and corrected.
Original NASA ASRS Text
Title: JETSTREAM 3201 WAS CLRED TO MAINTAIN 4500 FT. WHILE LOOKING FOR TFC, FO LOWERED NOSE AND LOST 300 FT.
Narrative: IN SUM: ACR JETSTREAM 3201 WAS BEING VECTORED FOR A VISUAL APCH AND WAS LEVEL AT 4500 FT. AN MD80 WAS 2000 FT BELOW THEM. GETTING VERY HIGH ABOVE THE GS AND TRYING TO SIGHT THE MD80, THE NOSE WAS LOWERED AND THE ACFT DSNDED TO 4200 FT BEFORE EXCURSION WAS NOTED AND CORRECTED.
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.