CEN09LA190

NTSB accident investigation · Piper PA-18A · Wood Lake, NE · March 4, 2009

Accident · Serious injuriesLimited investigationFinal report
Date
March 4, 2009, 15:00 local (21:00 UTC)
Place
Wood Lake, NE
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N3352BPiper PA-18A
Defining event
Takeoff: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report November 9, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20090304004339A
Case key
73440

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 airspeed during the initial climb, which resulted in an aerodynamic stall.

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: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18A: 4 casesAll aircraft: 1,681 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18A: 13 casesAll aircraft: 9,295 casesProbable cause

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 and passenger departed on the flight to conduct an aerial view of the surrounding area. According to the passenger, shortly after taking off of the grass field runway, and approximately 50 feet in the air, the airplane turned sharply to the right and dove to the ground. The airplane impacted terrain in a nose-down attitude. There were no reported ground witnesses to the accident and the pilot has no memory of the crash. The passenger, who had only flown in a small airplane once before, reported that the lift-off appeared "smooth" and that he didn't hear any changes in the engine sound or an "[engine] cough." An examination of the airplane failed to identify any preimpact abnormalities with the engine or airframe.

Factual narrative

On March 4, 2009, about 1500 central standard time, a single-engine Piper, PA-18A, airplane, N3352B, was substantially damaged upon impact with terrain following a loss of control shortly after takeoff from a private airfield near Wood Lake, Nebraska. The airplane was registered to and operated by a private individual. The pilot and passenger received serious injuries. Visual meteorological conditions prevailed and no flight plan was filed for the 14 Code of Federal Regulations Part 91 flight. The pilot and passenger planned to conduct an aerial view of the surrounding area. The pilot preceded to do a "routine walk-around" preflight inspection before departing on a grass field runway. In the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the pilot, he stated he has no memory of the actual crash. Additionally, there were no reported witnesses to the accident. The passenger, who had only flown in a small airplane once before, reported that the lift-off appeared "smooth" and he didn't hear any changes in the engine sound or an "[engine] cough." The passenger continued, "after the airplane climbed to about 50 feet in the air, the airplane dived sharply to the right and dove straight to the ground. He added, that the pilot stated, "I think we're going down." Photographs of the scene and information provided by the Federal Aviation Administration (FAA) inspector, who responded to the site, indicated the airplane impacted the terrain in a nose down attitude. An on-site examination of the airplane was conducted. The engine was rotated by the propeller and continuity to the rear of the engine and cylinders was established; the spark plugs appeared "normal.” Continuity of the airplane's flight controls was also confirmed. At 1450, the automated weather station (ANW) located approximately 15 miles east-southeast from the accident site, reported winds from 170 degrees at 7 knots, visibility 10 statute miles, a clear sky, temperature 72 degrees Fahrenheit, dew point 32 degrees Fahrenheit, and altimeter setting of 29.65 inches of Mercury.

Aircraft

Registration
N3352B
Reported as
Piper PA-18A
Category
Airplane
Serial number
18-3305
Airframe hours
4,416
Engine
Lycoming 0-290 SERIES, 140 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 19, 2008
Departed
Wood Lake, NE
Destination
Wood Lake, NE
Flight plan
Unknown

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
56
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
January 25, 2007
Seat
Front
Flight hours
500 total · 450 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 32 °F
Altimeter
29.64 inHg
Observed at
KANW, 15 nm away

Docket · 5

The files NTSB released with the investigation on June 25, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.3 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.