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A B757 first officer reported that the captain was hand flying and overshot the assigned altitude by 700 ft due to avoiding thunderstorms.
| Attributes | |
| ACN | 515770 |
| Time | |
| Date | 200106 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| State Reference | CO |
| Altitude | msl single value : 27000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Dusk |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 7500 flight time type : 1500 |
| ASRS Report | 515770 |
| Events | |
| Anomaly | altitude deviation : overshoot inflight encounter : weather non adherence : published procedure non adherence : far non adherence : company policies non adherence : clearance |
| Resolutory Action | flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Overshot leveloff altitude by 700 ft and returned immediately to FL270. Captain was hand flying to avoid thunderstorms in the area, and I was entering a new clearance into the FMC. There was no intervention from ATC nor any conflict with any other aircraft. 10 hours into a challenging duty day, so fatigue could have been a factor as well as distrs caused by the WX, use of radar, and programming the FMC. Situation may have been prevented by use of autoplt, delaying programming of the FMC near leveloff altitude, and closer adherence to SOP's.
Original NASA ASRS Text
Title: A B757 FO RPTED THAT THE CAPT WAS HAND FLYING AND OVERSHOT THE ASSIGNED ALT BY 700 FT DUE TO AVOIDING TSTMS.
Narrative: OVERSHOT LEVELOFF ALT BY 700 FT AND RETURNED IMMEDIATELY TO FL270. CAPT WAS HAND FLYING TO AVOID TSTMS IN THE AREA, AND I WAS ENTERING A NEW CLRNC INTO THE FMC. THERE WAS NO INTERVENTION FROM ATC NOR ANY CONFLICT WITH ANY OTHER ACFT. 10 HRS INTO A CHALLENGING DUTY DAY, SO FATIGUE COULD HAVE BEEN A FACTOR AS WELL AS DISTRS CAUSED BY THE WX, USE OF RADAR, AND PROGRAMMING THE FMC. SIT MAY HAVE BEEN PREVENTED BY USE OF AUTOPLT, DELAYING PROGRAMMING OF THE FMC NEAR LEVELOFF ALT, AND CLOSER ADHERENCE TO SOP'S.
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.