SEA95LA215

NTSB accident investigation · Socata Rallye 150 ST · Yakima, WA · September 10, 1995

Accident · No injuriesLimited investigationFinal report
Date
September 10, 1995, 13:08 local (20:08 UTC)
Place
Yakima, WA
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N308RASocata Rallye 150 ST
Weather
Visual (VMC) · Day
Status
Completed · report December 4, 1995
Report
Approved by Office Director
FAA report
19950910028219A
Case key
42246

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 inadequate compensation for wind conditions. The downdraft was a factor.

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.

On ground/water encounter with terrain/waterLanding - roll
Compensation for wind conditions - inadequatePilot in commandCause
Precautionary landing - performedPilot in command
Weather condition - downdraftFactor
Terrain condition - rough/uneven

Analysis

The pilot reported that prior to takeoff he noted that the wind sock was limp. After takeoff and at an altitude of about 100 feet, the airplane experienced a sink rate that the pilot felt the airplane could not out climb. The pilot elected to initiate an off airstrip landing and selected an open field. During the landing roll, the airplane collided with trees and rough terrain. The pilot stated that a ten knot wind was present over the river near the end of the runway, along with turbulent conditions over trees at the departure end.

Factual narrative

On September 10, 1995, at 1308 Pacific daylight time, a S.O.C.A.T.A. Rallye 150 ST, N308RA, collided with the terrain shortly after takeoff from a private airstrip near Yakima, Washington. Visual meteorological conditions prevailed at the time and no flight plan was filed for the local flight. The airplane was substantially damaged and the private pilot and his two passengers were not injured.

During a telephone interview and subsequent written statement, the pilot reported that prior to takeoff he noted that the windsock was slack. The pilot elected to take off on runway 27, and stated that the airplane climbed to approximately 100 feet then experienced a sink rate that the pilot felt the airplane could not out climb. The pilot initiated a forced landing to an open field where during the landing roll, the airplane collided with trees and rough terrain.

The pilot stated that a ten knot wind was present over the river near the end of the runway, along with turbulent conditions over trees at the departure end.

The pilot reported that there were no mechanical failures or malfunctions with the airplane at the time of the accident.

Aircraft

Registration
N308RA
Reported as
Socata Rallye 150 ST (RALLYE 150)
Category
Airplane
Serial number
2993
Airframe hours
1,250
Engine
Lycoming O-320-E2A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Mccormick, Robert E.
Airworthiness certificate
Standard, Utility
Last inspection
Annual · September 28, 1994 · 15 hours before
Airport
runway 27, 2,300 × 50 ft, 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
44
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
967 total · 720 in this make and model · 921 as pilot in command · 3 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 6 knots
Visibility
60 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 54 °F
Altimeter
29.00 inHg
Observed at
YKM, 5 nm away

FAA reports on this event · 1

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