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NTSB Report
September 22, 2007 · North American SNJ-5 · N11HP
Bloomington, IL
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 22, 2007
Injury Outcomes
No injuries (1 uninjured)
Location
Bloomington, IL
Aircraft
North American SNJ-5
Tail Number
N11HP
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI07CA303
The airplane ground looped during the takeoff roll. The pilot reported that the airplane started to veer to the left as he increased engine power for the takeoff roll on runway 11 (6,525 feet by 150 feet, concrete). The pilot reduced engine power to idle as the airplane departed off the left side of the runway. The right wingtip, tip rib, and aileron were damaged during the ground loop. The pilot reported that his rapid advance of engine power and inadequate use of up-elevator (backstick) contributed to the tail becoming prematurely airborne and the subsequent loss of directional control. The winds were reported to be variable at 5 knots.
NTSB Probable Cause
The pilot's failure to maintain directional control during takeoff roll which resulted in a ground loop.
Full Narrative
The airplane ground looped during takeoff roll. The pilot reported that the airplane started to veer to the left as he increased engine power for the takeoff roll on runway 11 (6,525 feet by 150 feet, concrete). The pilot reduced engine power to idle as the airplane departed off the left side of the runway. The right wingtip, tip rib, and aileron were damaged during the ground loop. The pilot reported that his rapid advance of engine power and inadequate use of up-elevator (backstick) contributed to the tail becoming prematurely airborne and the subsequent loss of directional control. The winds were reported to be variable at 5 knots.
Flight
Event TypeAccident
Event Time16:30 CDT
Nearest AirportCentral Illinois Regional (0nm)
Runway11
Runway Length6525 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftNorth American SNJ-5
Tail NumberN11HP
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsPratt & Whitney · R1340AN1 · Reciprocating · 600
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 50 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind5 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point36 C
Altimeter30.13 inHg
Observation Time20:56
Weather SourceWFAC