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Altitude deviation altitude excursion during temporary loss of aircraft control in a 'mountain wave' effect.
| Attributes | |
| ACN | 293984 |
| Time | |
| Date | 199501 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : odf |
| State Reference | GA |
| Altitude | msl bound lower : 27600 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zts |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 21000 flight time type : 3000 |
| ASRS Report | 293984 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : regained aircraft control flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Aircraft entered area of 'mountain wave' activity causing aircraft to lose 400 ft of altitude. We received a call from ATC as we were recovering to assigned altitude. No other aircraft involved.
Original NASA ASRS Text
Title: ALTDEV ALT EXCURSION DURING TEMPORARY LOSS OF ACFT CTL IN A 'MOUNTAIN WAVE' EFFECT.
Narrative: ACFT ENTERED AREA OF 'MOUNTAIN WAVE' ACTIVITY CAUSING ACFT TO LOSE 400 FT OF ALT. WE RECEIVED A CALL FROM ATC AS WE WERE RECOVERING TO ASSIGNED ALT. NO OTHER ACFT INVOLVED.
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.