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NTSB Report
March 22, 2008 · Grumman-Schweizer G-164B · N63D
Colfax, WA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 22, 2008
Injury Outcomes
No injuries (1 uninjured)
Location
Colfax, WA
Aircraft
Grumman-Schweizer G-164B
Tail Number
N63D
Operator
Tlc Flying
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX08CA082
The pilot said that he was departing for an aerial application flight on runway 25 with a 12- to 15-knot tailwind. He had 1,400 pounds of dry fertilizer in the hopper. Takeoff from this airport must be in one direction due to climbing terrain and runway slope. He started a right turn down a valley when he felt a loss of lift. He started to dump his applicant, but the weight transfer was too slow. The airplane descended into power lines and impacted the ground. It continued through a fence and impacted a light pole.
NTSB Probable Cause
The pilot's inadequate compensation for the wind conditions, failure to attain and maintain an adequate airspeed that resulted in a stall mush, and, the subsequent failure to maintain terrain and obstacle clearance during the takeoff initial climb. Contributing factors were the tailwind weather condition, and the one-way direction requirements of the airstrip.
Full Narrative
The pilot said that he was departing for an aerial application flight on runway 25 with a 12- to 15-knot tailwind. He had 1,400 pounds of dry fertilizer in the hopper. Takeoff from this airport must be in one direction due to climbing terrain and runway slope. He started a right turn down a valley when he felt a loss of lift. He started to dump his applicant, but the weight transfer was too slow. The airplane descended into power lines and impacted the ground. It continued through a fence and impacted a light pole.
Flight
Event TypeAccident
Event Time09:14 PDT
Nearest AirportWhitman County Airport (1nm)
Runway25
Runway Length3209 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman-Schweizer G-164B
Tail NumberN63D
Aircraft CategoryAir
DamageSubstantial
OperatorTlc Flying
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsPratt & Whitney · R-985 · Reciprocating
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 44 · First Class · None
Conditions
ConditionsVMC
LightDaylight
Wind90° @ 16 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point34 C / 25 C
Altimeter30.55 inHg
Observation Time15:53
Weather SourceWFAC