IAD05CA086

NTSB accident investigation · Porterfield CP-65 · Jaffrey, NH · June 24, 2005

Accident · Minor injuriesData collectionFinal report
Date
June 24, 2005, 14:30 local (18:30 UTC)
Place
Jaffrey, NH
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N37709Porterfield CP-65
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2005
Report
Approved by Office Director
FAA report
20050624012479A
Case key
61819

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 student pilot's inadequate compensation for wind conditions and his failure to maintain directional control. A factor in the accident was the drop off/descending embankment at the runway's edge.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Weather condition - crosswind
Compensation for wind conditions - inadequatePilot in commandCause
Directional control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - drop-off/descending embankmentFactor

Analysis

The student pilot entered the downwind leg of the traffic pattern, and after viewing the windsock, decided to land on the opposite runway. The airplane landed with a reported crosswind of 11 knots gusting to 16 knots. After lowering the tailwheel to the runway, the airplane encountered a crosswind gust that "spun the airplane around like a toy." The student straightened the airplane as it departed the left edge of the runway, where the grade dropped immediately down an embankment. The airplane struck terrain at the bottom of the embankment, nosed over, and came to rest inverted. The student pilot stated that there were no mechanical deficiencies with the airplane.

Factual narrative

On June 24, 2005, at 1430 eastern daylight time, a Porterfield CP-65, N37709, was substantially damaged when it departed the left side of the runway after landing at Jaffrey Airport (AFN), Jaffrey, New Hampshire. The certificated student pilot received minor injures. Visual meteorological conditions prevailed for the solo instructional flight that departed the Fitchburg Municipal Airport (FIT), Fitchburg, Massachusetts, about 1400. No flight plan was filed for the flight conducted under 14 CFR Part 91.

The student provided both a written statement and a telephone interview. He explained that the purpose of the flight was to practice for a Federal Aviation Administration (FAA) private pilot practical examination that he had scheduled.

The pilot monitored the Automated Surface Observing System (ASOS) as he approached the Jaffrey Airport, and entered the downwind leg of the traffic pattern to land on Runway 16. After viewing the windsock, he amended his decision, and decided to land on runway 34 instead.

The pilot estimated that there was a direct crosswind of between 10 and 15 knots, as he performed a "wheel landing" in the tailwheel-configured airplane. The main gear touched down at 65 knots, and the tailwheel was lowered to the runway at 45 knots. At that time, the airplane was "hit by a gust that spun [the airplane] around like a toy."

The pilot straightened the airplane as it departed the left edge of the runway, where the grade dropped immediately down an embankment. The airplane struck terrain at the bottom of the embankment, nosed over, and came to rest inverted.

The pilot stated that he frequently landed to runways that experienced significant crosswinds, because he looked forward to the challenge, and because he "didn't want to be one of those pilots that only flies when the weather is perfect."

The pilot was issued an FAA second-class medical certificate on September 9, 2004. He reported 102 total hours of flight experience, 63 hours of which were in make and model.

The pilot reported no mechanical deficiencies with the airplane. When asked how the accident might have been avoided, the pilot responded, "I will avoid airports that are not on level ground from now on unless the winds are very light."

At 1452, the weather reported at Jaffrey Airport included winds from 220 degrees at 11 knots, gusting to 16 knots.

Aircraft

Registration
N37709
Reported as
Porterfield CP-65
Category
Airplane
Serial number
938
Engine
Continental A65, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Bruce A. Morley
Airworthiness certificate
Standard, Normal
Departed
FIT · Fitchburg, MA
Destination
AFN · Jaffrey, NH
Airport
AFN · Jaffrey Muni-Silver Ranch, runway 34, grass/turf

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
54
Certificate
Student
Medical
Class 2
Flight hours
102 total · 63 in this make and model · 28 in the last 90 days · 22 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 11 knots, gusting 16

FAA reports on this event · 1

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