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A C172 flight instructor and his student had difficulty climbing when the temperature went from 93F to 109F between flight planning and takeoff.
| Attributes | |
| ACN | 911166 |
| Time | |
| Date | 201009 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Takeoff |
| Flight Plan | None |
| Person 1 | |
| Function | Instructor Pilot Flying |
| Qualification | Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 60 Flight Crew Total 350 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence |
Narrative:
My student checked all available weather resources as part of his preflight checklist only 20 minutes before departure and found the local temperature to be 34C. Performance was calculated for the weight and balance and was well within limits. When we were ready for take-off; however; the temperature had risen to a staggering 43C only 20 minutes after we checked our weather resources; effectively exceeding poh limits for the aircraft. The airplane would barely climb even though we were well below maximum take-off weight. We landed safely but it shows how flight situations can turn dangerous very quickly. I along with 4 other instructors failed to see this rapid rise in temperature. It might be a good idea for ATC on airports that have a lot of C172s to give a warning to pilots when temperatures rise dramatically in a short time frame to the point where it could compromise safety.
Original NASA ASRS Text
Title: A C172 Flight Instructor and his Student had difficulty climbing when the temperature went from 93F to 109F between flight planning and takeoff.
Narrative: My student checked all available weather resources as part of his preflight checklist only 20 minutes before departure and found the local temperature to be 34C. Performance was calculated for the weight and balance and was well within limits. When we were ready for take-off; however; the temperature had risen to a staggering 43C only 20 minutes after we checked our weather resources; effectively exceeding POH limits for the aircraft. The airplane would barely climb even though we were well below maximum take-off weight. We landed safely but it shows how flight situations can turn dangerous very quickly. I along with 4 other instructors failed to see this rapid rise in temperature. It might be a good idea for ATC on airports that have a lot of C172s to give a warning to pilots when temperatures rise dramatically in a short time frame to the point where it could compromise safety.
Data retrieved from NASA's ASRS site as of April 2012 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.