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NTSB Report
January 9, 2009 · Parker 77 · N60DE
Phoenix, AZ
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
January 9, 2009
Injury Outcomes
No injuries (1 uninjured)
Location
Phoenix, AZ
Aircraft
Parker 77
Tail Number
N60DE
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR09CA081
The pilot reported that during rollout from a practice landing on runway 25L in his amateur-built, experimental biplane, he may have applied unequal toe brake pressure. The pilot stated that he lost directional control of the airplane, and while decelerating it swerved about 60 degrees sideways from the runway's centerline. During the mishap, the right main landing gear collapsed under the fuselage and the lower right wing impacted the runway. The pilot reported no mechanical failures with the airplane at the time of the accident. At the time, the surface wind was light and variable. A Federal Aviation Administration inspector examined the airplane and reported that the outboard portion of the lower right wing's aft spar was cracked.
NTSB Probable Cause
The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's improper application of brakes.
Full Narrative
The pilot reported that during rollout from a practice landing on runway 25L in his amateur-built, experimental biplane, he may have applied unequal toe brake pressure. The pilot stated that he lost directional control of the airplane, and while decelerating, it swerved about 60 degrees sideways from the runway's centerline. During the mishap, the right main landing gear collapsed under the fuselage, and the lower right wing impacted the runway. The pilot reported no mechanical failures with the airplane at the time of the accident. At the time, the surface wind was light and variable. A Federal Aviation Administration inspector examined the airplane. He reported observing that the outboard portion of the lower right wing's aft spar was cracked.
Flight
Event TypeAccident
Event Time13:43 MST
Nearest AirportDeer Valley (0nm)
Runway25L
Runway Length8197 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftParker 77
Tail NumberN60DE
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-290 D2 · Reciprocating · 135
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 71 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility25 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO