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A departing B757 climbs 400 ft above its assigned altitude, breaking out of the overcast into bright sunshine when 20 mi east of cos, co.
| Attributes | |
| ACN | 477200 |
| Time | |
| Date | 200006 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cos.airport |
| State Reference | CO |
| Altitude | msl bound lower : 12000 msl bound upper : 12400 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tracon : cos.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 10000 flight time type : 300 |
| ASRS Report | 477200 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 30 flight time total : 4000 flight time type : 500 |
| ASRS Report | 477206 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to assigned altitude |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Environmental Factor Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Departing cos to den. On vectors turning through easterly heading climbing to 12000 ft. Broke out of overcast (dark) into rising sun while receiving heading changes from ATC. Exceeded 12000 ft due to ATC directions and bright-sudden sun in front. Exceeded assigned altitude of 12000 ft by 400 ft prior to returning to 12000 ft.
Original NASA ASRS Text
Title: A DEPARTING B757 CLBS 400 FT ABOVE ITS ASSIGNED ALT, BREAKING OUT OF THE OVCST INTO BRIGHT SUNSHINE WHEN 20 MI E OF COS, CO.
Narrative: DEPARTING COS TO DEN. ON VECTORS TURNING THROUGH EASTERLY HEADING CLBING TO 12000 FT. BROKE OUT OF OVCST (DARK) INTO RISING SUN WHILE RECEIVING HEADING CHANGES FROM ATC. EXCEEDED 12000 FT DUE TO ATC DIRECTIONS AND BRIGHT-SUDDEN SUN IN FRONT. EXCEEDED ASSIGNED ALT OF 12000 FT BY 400 FT PRIOR TO RETURNING TO 12000 FT.
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.