ERA09CA403

NTSB accident investigation · Smith PA18 replica · Chesterville, ME · July 14, 2009

Accident · Minor injuriesData collectionFinal report
Date
July 14, 2009, 13:40 local (17:40 UTC)
Place
Chesterville, ME
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N846PTSmith PA18 replica
Defining event
Approach-VFR pattern base: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report October 19, 2009
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20090714048149A
Case key
74284

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 aircraft control while turning from base leg to final approach.

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 parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedTyler Parker SUPER CUB REPLICA: 1 caseAll aircraft: 1,269 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 stated he was turning base to final in preparation for a water landing with his float equipped airplane. He reported the airspeed was 60 miles per hour. During the turn, at approximately 30 to 40 feet above the trees, the airplane began to sink and the left wing and nose dropped. The pilot further stated he had no time to recover as the aircraft impacted trees, and then the ground. He also stated that there were no deficiencies with the performance and handling of the airplane. The pilot explained that this accident may have been prevented if he performed a steeper approach with increased airspeed. The pilot reported that he had 2,070 hours of total flight experience, of which 172 hours were in the accident airplane make and model configured with floats. The recorded wind at an airport 15 nautical miles south southeast, about the time of the accident, was variable at 4 knots; however, the pilot reported rain showers in the vicinity accompanied by “rolling turbulence from the near by hills." Review of recorded weather at approximately the time and within a 30-nautical mile radius of the accident site did not reveal precipitation or wind gusts. Examination of the airplane revealed structural damage to both wings, wing struts, elevator and to the engine firewall.

Factual narrative

The pilot stated he was turning base to final in preparation for a water landing with his float equipped airplane. He reported the airspeed was 60 miles per hour. During the turn, at approximately 30 to 40 feet above the trees, the airplane began to sink and the left wing and nose dropped. The pilot further stated he had no time to recover as the aircraft impacted trees, and then the ground. He also stated that there were no deficiencies with the performance and handling of the airplane. The pilot explained that this accident may have been prevented if he performed a steeper approach with increased airspeed. The pilot reported that he had 2,070 hours of total flight experience, of which 172 hours were in the accident airplane make and model configured with floats. The recorded wind at an airport 15 nautical miles south southeast, about the time of the accident, was variable at 4 knots; however, the pilot reported rain showers in the vicinity accompanied by “rolling turbulence from the near by hills.” Review of recorded weather at approximately the time and within a 30 nautical mile radius of the accident site did not reveal precipitation or wind gusts. Examination of the airplane revealed structural damage to both wings, wing struts, elevator and to the engine firewall.

Aircraft

Registration
N846PT
Reported as
Smith PA18 replica
Category
Airplane, amateur-built
Serial number
073
Airframe hours
327
Engine
Lycoming O-360 A1A, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · July 5, 2009 · 6 hours before
Departed
OWK · Norridgewock, ME
Destination
Egypt Pond, ME
Airport
Egypt Pond, runway 36, water

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
62
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, With waivers/limitations
Last flight review
August 23, 2006
Seat
Front
Flight hours
2,070 total · 325 in this make and model · 35 in the last 90 days · 12 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 4 knots
Visibility
10 statute miles
Lowest ceiling
8,500 ft broken
Temperature
70 °F, dew point 48 °F
Altimeter
29.93 inHg
Observed at
AUG, 15 nm away

Docket · 4

The files NTSB released with the investigation on August 24, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.1 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.