GAA16CA356

NTSB accident investigation · Cessna 182 · Llano, CA · July 3, 2016

Accident · Minor injuriesData collectionFinal report
Date
July 3, 2016, 13:50 local (20:50 UTC)
Place
Llano, CA
Injuries
4 minor
Damage
Destroyed
Phase of flight
Takeoff
Aircraft
N1642TCessna 182
Defining event
Takeoff: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report August 31, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20160703011789A
Case key
93518

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to attain an adequate airspeed and his intentional aerodynamic stall, which resulted in an impact with terrain and a post-impact fire.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Capability exceededCessna 182M: 1 caseAll aircraft: 990 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 182M: 1 caseAll aircraft: 1,681 casesProbable cause
Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 182M: 1 caseAll aircraft: 265 cases
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentCessna 182M: 2 casesAll aircraft: 1,008 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that during takeoff from a private dirt airstrip with an air density altitude near 6,100 feet, the airplane became airborne in ground effect, but was not able to "build airspeed sufficient to pitch for Vy (best rate of climb)". The pilot further reported that the wind pushed the airplane over an orchard and he intentionally put the airplane into an aerodynamic stall prior to impacting terrain. A post-impact fire ensued and the airplane was destroyed. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The pilot reported that during the takeoff roll he heard a "bang" which he initially assumed to be a rock hitting the fuselage, but later believed to be an engine failure. An examination of the postaccident photographs of the two-bladed propeller showed, approximately 1/3 of the outer portion of one propeller blade was snapped off across the cord perpendicular to the leading edge and the second propeller blade showed "S" bending, torsional twisting, and tip curl, which are all indications consistent with the engine producing power at the time of impact.

Factual narrative

The pilot reported that during takeoff from a private dirt airstrip with an air density altitude near 6,100 feet, the airplane became airborne in ground effect, but was not able to "build airspeed sufficient to pitch for Vy (best rate of climb)". The pilot further reported that the wind pushed the airplane over an orchard and he intentionally put the airplane into an aerodynamic stall prior to impacting terrain. A post-impact fire ensued and the airplane was destroyed. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The pilot reported that during the takeoff roll he heard a "bang" which he initially assumed to be a rock hitting the fuselage, but later believed to be an engine failure. An examination of the postaccident photographs of the two-bladed propeller showed, approximately 1/3 of the outer portion of one propeller blade was snapped off across the cord perpendicular to the leading edge and the second propeller blade showed "S" bending, torsional twisting, and tip curl, which are all indications consistent with the engine producing power at the time of impact.

Aircraft

Registration
N1642T
Reported as
Cessna 182 (M)
Category
Airplane
Serial number
18259338
Built
1968
Airframe hours
6,293.2
Engine
Cont Motor O-470R, 230 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 14, 2015
Departed
CL13 · Llano, CA
Destination
CRQ · Carlsbad, CA
Airport
CL13 · Brian Ranch, runway 26, 2,100 × 50 ft, gravel
Equipment
Handheld GPS, Electronic flight bag or handheld device

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
36
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
March 24, 2015
Seat
Left
Restraint
Lap only
Flight hours
225 total · 80 in this make and model · 175 as pilot in command · 31 in the last 90 days · 7 in the last 30 days · 1.5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 8 knots, gusting 16
Visibility
10 statute miles
Temperature
97 °F, dew point 27 °F
Altimeter
30.03 inHg
Observed at
KGXA, 5 nm away

Docket · 3

The files NTSB released with the investigation on August 3, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.6 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.