CHI07CA303

NTSB accident investigation · North American SNJ-5 · Bloomington, IL · September 22, 2007

Accident · No injuriesData collectionFinal report
Date
September 22, 2007, 16:30 local (21:30 UTC)
Place
Bloomington, IL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N11HPNorth American SNJ-5
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2007
Report
Approved by Office Director
Parties
Federal Aviation Administration - Springfield FSDO
FAA report
20070922832069A
Case key
67079

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to maintain directional control during takeoff roll which resulted in a ground loop.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterTakeoff - roll/run
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - encounteredPilot in commandCause
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - ground

Analysis

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.

Factual 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.

Aircraft

Registration
N11HP
Reported as
North American SNJ-5
Category
Airplane
Serial number
90735
Airframe hours
7,339
Engine
Pratt & Whitney R1340AN1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Mustang Aviation Partners, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 1, 2006
Departed
BMI · Bloomington, IL
Destination
ARR · Aurora, IL
Airport
BMI · Central Illinois Regional, runway 11, 6,525 × 150 ft, concrete

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
50
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Last flight review
August 1, 2006
Seat
Front
Flight hours
637 total · 89 in this make and model · 539 as pilot in command · 46 in the last 90 days · 15 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 36 °F
Altimeter
30.13 inHg
Observed at
BMI

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.