Takeoff & Initial Climb · NTSB WPR11FA382
CESSNA P210N — Burley, ID
| Date | August 14, 2011 |
| Location | Burley, ID |
| Aircraft | CESSNA P210N |
| Purpose of flight | Personal |
| Conditions | Day · Visual Meteorological Cond |
| Phase / occurrence | Takeoff Collision with terr/obj (non-CFIT) |
| Pilot age | 42 |
| Pilot total time | 480 hrs · Building experience |
| Time in type | 160 hrs |
| Fatalities | 4 |
Probable cause
NTSB findings
- Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained - C
- Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
- Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- Aircraft-Aircraft oper/perf/capability-Aircraft capability-Maximum weight-Not specified
- Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-High density altitude-Not specified
- Environmental issues-Conditions/weather/phenomena-Wind-Tailwind-Effect on operation
What happened
Witnesses reported that during the takeoff, the airplane lifted off about three-quarters of the way down the runway. The landing gear was retracted and almost immediately, about 75 feet above ground level, the airplane entered a left turn and began to descend. The left descending turn continued to ground impact. On the day of the accident, the airplane was operating in high density altitude conditions, and was taking off with a tailwind of about 6 to 10 knots. The airplane was loaded at, or very near to, its maximum allowable takeoff weight. (The takeoff weight was estimated to be within 50 pounds, plus or minus, of its maximum takeoff gross weight of 4,000 pounds.) The combination of the high density altitude, the tailwind, and the high gross weight most likely resulted in the pilot not being able to maintain altitude once the vertical component of the lift vector was reduced as a result of the bank angle during the left turns, which ultimately lead to the descent into the terrain. Postaccident examination of the airframe and engine revealed no evidence of a mechanical malfunction or failure that would have precluded normal operation.