37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 732225 |
Time | |
Date | 200703 |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | atc facility : zdv.artcc |
State Reference | CO |
Altitude | msl single value : 35000 |
Environment | |
Weather Elements | Turbulence other |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zdv.artcc |
Operator | common carrier : air carrier |
Make Model Name | A320 |
Operating Under FAR Part | Part 121 |
Flight Phase | cruise : level |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
ASRS Report | 732225 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Events | |
Anomaly | altitude deviation : excursion from assigned altitude inflight encounter : turbulence |
Independent Detector | other flight crewa other flight crewb |
Resolutory Action | none taken : insufficient time |
Supplementary | |
Problem Areas | Weather Aircraft Flight Crew Human Performance |
Primary Problem | Ambiguous |
Narrative:
Cruise flight; near cruser intersection. We were flying in level flight with light turbulence. The radar was on and showed no returns and there was no reports from other aircraft from other than light turbulence. We hit an area of moderate turbulence with a strong updraft. We were unable to maintain altitude; the aircraft was pushed up 800 to 900 feet. We notified ATC that we were unable to maintain altitude; due to wave actions. Clearing the weather condition; we returned to the assigned altitude. We notified operations and ATC of the WX area. ATC did not indicate any loss of separation between us and any other aircraft.
Original NASA ASRS Text
Title: A320 FLT CREW HAS AN ALT DEV DUE TO TURB DURING CRUISE.
Narrative: CRUISE FLIGHT; NEAR CRUSER INTERSECTION. WE WERE FLYING IN LEVEL FLIGHT WITH LIGHT TURBULENCE. THE RADAR WAS ON AND SHOWED NO RETURNS AND THERE WAS NO REPORTS FROM OTHER AIRCRAFT FROM OTHER THAN LIGHT TURBULENCE. WE HIT AN AREA OF MODERATE TURBULENCE WITH A STRONG UPDRAFT. WE WERE UNABLE TO MAINTAIN ALTITUDE; THE AIRCRAFT WAS PUSHED UP 800 TO 900 FEET. WE NOTIFIED ATC THAT WE WERE UNABLE TO MAINTAIN ALTITUDE; DUE TO WAVE ACTIONS. CLEARING THE WEATHER CONDITION; WE RETURNED TO THE ASSIGNED ALTITUDE. WE NOTIFIED OPS AND ATC OF THE WX AREA. ATC DID NOT INDICATE ANY LOSS OF SEPARATION BETWEEN US AND ANY OTHER AIRCRAFT.
Data retrieved from NASA's ASRS site as of January 2009 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.