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NTSB Report
March 4, 2006 · Grumman-Schweizer G-164B · N6641Q
Texarkana, AR
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 4, 2006
Injury Outcomes
1 injury (1 minor injury)
Location
Texarkana, AR
Aircraft
Grumman-Schweizer G-164B
Tail Number
N6641Q
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
DFW06CA081
The 828-hour commercial pilot of the single-engine agricultural application airplane, took off from a 3,500-feet long by 100-feet wide private grass strip on a northerly heading. During climb-out, as the pilot initiated a turn to the east, the engine began to vibrate and run rough, and subsequently lost power. The pilot reported that he activated the dump valve to release the insecticide payload in order to lighten its weight. The pilot then stated that the airplane "rolled to the left past 80-degrees. " The airplane impacted muddy terrain in a near vertical attitude. The airplane was equipped with a 5-point restraint system that held the pilot in place. Examination of the radial engine by the operator revealed the number three cylinder was cracked.
NTSB Probable Cause
The loss of engine power due to a cracked cylinder. Contributing factors were the pilot's failure to maintain adequate airspeed.
Full Narrative
The 828-hour commercial pilot of the single-engine agricultural application airplane, took off from a 3,500-feet long by 100-feet wide private grass strip on a northerly heading. During climb-out, as the pilot initiated a turn to the east, the engine began to vibrate and run rough, and subsequently lost power. The pilot reported that he activated the dump valve to released the insecticide payload in order to lighten its weight. The pilot then stated the airplane "rolled to the left past 80-degrees. " The airplane impacted muddy terrain in a near vertical attitude. The airplane was equipped with a 5-point restrain system that held the pilot in place. Examination of the radial engine by the operator revealed the number three cylinder was cracked.
Flight
Event TypeAccident
Event Time06:30 CST
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman-Schweizer G-164B
Tail NumberN6641Q
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsPratt & Whitney · R1340 · Reciprocating · 600
Seats1
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 28 · Second Class · Minor
Conditions
ConditionsVMC
LightDaylight
Wind80° @ 10 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point59 / 30 C
Altimeter30.23 inHg
Observation Time12:53
Weather SourceWFAC