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NTSB Report
September 3, 2010 · North American AT-6 · N77TX
Blakesburg, IA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 3, 2010
Injury Outcomes
No injuries (2 uninjured)
Location
Blakesburg, IA
Aircraft
North American AT-6
Tail Number
N77TX
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN10CA565
The pilot of the tailwheel–equipped airplane performed a short-field landing on the grass runway. During the landing rollout, he applied the brakes and the aircraft slowed normally. Due to his position in the cockpit, the pilot could not see the end of the runway until the airplane approached it. He intentionally ground-looped the airplane in an attempt to avoid traveling off the end of the runway. The airplane turned 90 degrees and impacted trees. According to a Federal Aviation Administration inspector, witnesses reported the airplane's approach speed was excessive for the short runway. Examination of the airplane revealed substantial damage to the forward left wing spar. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot's excessive airspeed during the landing, which resulted in his decision to perform an intentional ground loop to avoid a runway overrun.
Full Narrative
The pilot "made a short field landing approach 3 pointing the aircraft at the approach end" of the 2,350 foot long by 100 feet wide grass runway. The pilot applied the brakes and "slowing seemed normal." Due to his position in the cockpit and the 3-point landing, the pilot could not "see the end of the runway until it was too late." The pilot then intentionally ground looped the airplane to avoid traveling off the end and into a ravine. The airplane turned 90 degrees and impacted trees. According to a Federal Aviation Administration inspector, witnesses reported the airplane's approach speed was "way too fast for the short runway." Examination of the airplane revealed the forward left wing spar was fractured. The pilot reported there were no mechanical anomalies with the airplane.
Flight
Event TypeAccident
Event Time09:00 CDT
Nearest AirportAntique Airfield (0nm)
Runway18
Runway Length2350 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftNorth American AT-6
Tail NumberN77TX
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsPratt & Whitney · R-1340-AN-1 · Reciprocating · 600
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 65 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 15 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO