CEN09CA544

NTSB accident investigation · Piper PA-18 · Aspen, CO · August 9, 2009

Accident · No injuriesData collectionFinal report
Date
August 9, 2009, 10:00 local (16:00 UTC)
Place
Aspen, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N350CCPiper PA-18
Defining event
Takeoff: Aircraft wake turb encounter
Weather
Visual (VMC) · Day
Status
Completed · report December 15, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
Case key
74601

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 maintain adequate separation behind a preceding large business jet, which resulted in an encounter with wake turbulence.

Findings · 2

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: directional controlAircraft › Aircraft oper/perf/capability · Attain/maintain not possiblePiper PA-18: 12 casesAll aircraft: 3,958 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

Prior to takeoff, the pilot was warned by tower controllers to use caution for wake turbulence from a preceding large business jet. During takeoff roll, prior to the tailwheel becoming airborne, the airplane ground-looped to the left and came to rest beside the runway. The pilot stated that the winds were calm and that he did not wait a sufficient amount of time behind the preceding airplane before starting his takeoff. Examination of the airplane revealed a bent right wing spar, bent right horizontal stabilizer and elevator.

Factual narrative

Prior to takeoff, the pilot was warned by tower controllers to use caution for wake turbulence from a preceding large business jet . During takeoff roll, prior to the tailwheel becoming airborne, the airplane ground-looped to the left and came to rest beside the runway. The pilot stated that the winds were calm and that he did not wait a sufficient amount of time behind the preceding airplane before starting his takeoff. Examination of the airplane revealed a bent right wing spar, bent right horizontal stabilizer and elevator.

Aircraft

Registration
N350CC
Reported as
Piper PA-18
Category
Airplane
Serial number
18-1172
Engine
Cont Motor AIO-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Culwell Charles W DBA
Registered owner
Culwell Charles W DBA
Airworthiness certificate
Standard, Normal
Departed
ASE · Aspen, CO
Destination
Gateway Canyons, CO
Airport
ASE · Aspen-Pitkin COunty Airport, runway 33, asphalt

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
76
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Seat
Front
Flight hours
9,800 total · 1,500 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F

Docket · 1

The files NTSB released with the investigation on October 2, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 629 KB in all.

Other investigations on N350CC · 1

Matched to the same aircraft by N-number and date.