ATL95LA063

NTSB accident investigation · Cessna 172L · Smyrna, TN · March 10, 1995

Accident · Serious injuriesLimited investigationFinal report
Date
March 10, 1995, 10:20 local (16:20 UTC)
Place
Smyrna, TN
Injuries
1 serious, 1 uninjured
Damage
No damage
Phase of flight
Standing
Aircraft
N4383QCessna 172L
Weather
Visual (VMC) · Day
Status
Completed · report July 31, 1995
Report
Approved by Office Director
FAA report
19950310008139A
Case key
3532

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 flight instructor's failure to ensure that the magnetos were not energized prior to positioning the propeller, and the dual student's failure to place the ignition switch in the off position after the first start attempt.

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.

Propeller/rotor contact to personStanding - starting engine(s)
Procedures/directives - not followedDual studentCause
Procedures/directives - not followedPilot in command(cfi)Cause

Analysis

The flight instructor was 'hand propping' the engine due to an inoperative starter solenoid. His student was in the left cockpit seat, working the engine controls. The first start attempt was unsuccessful. The instructor positioned the prop for the second attempt, and the engine fired. No hand signals were given prior to the second start attempt. The propeller contacted the instructor's arm and leg, resulting in serious injuries. The instructor believes that the student did not return the ignition switch to the off position after the first start attempt, contrary to what was briefed.

Factual narrative

On March 10, 1995, at 1020 central standard time, the flight instructor of a Cessna 172L, N4383Q, was seriously injured when he was struck by the propeller during ground start at Smyrna, Tennessee. A dual student pilot, who was in the left, front seat, was not injured. The aircraft was not damaged. The aircraft was operated under the provisions of 14 CFR Part 91 by Geoffrey C. Boshier, of Greenbrier, Tennessee. Visual meteorological conditions existed at the time, and no flight plan was filed for the local, instructional flight. The flight was originating at the time of the accident.

The flight instructor reported that he was "hand propping" the engine due to an inoperative starter solenoid. He covered the procedures for hand starting the engine, including hand signals for communication, and the dual student worked the cockpit controls. The first start attempt was unsuccessful. While positioning the propeller for the second start attempt, the flight instructor slightly moved the propeller without any hand signals being given, and the engine fired. The propeller struck him, breaking his right arm, and injuring his right leg. The flight instructor believed that the ignition switch was not returned to the "off" position after the first start attempt.

Aircraft

Registration
N4383Q
Reported as
Cessna 172L
Category
Airplane
Serial number
17260283
Airframe hours
3,066
Engine
Lycoming O-320-E2D, 150 horsepower, reciprocating
Damage
No damage
Flight
Instructional · Part 91
Registered owner
Boshier, Geoffrey C.
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · October 8, 1994 · 40 hours before
Departed
MQY
Airport
MQY · Smyrna Airport

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
32
Certificates
Flight engineer, Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Flight hours
5,745 total · 370 in this make and model · 4,809 as pilot in command · 7 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 30 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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

Other investigations on N4383Q · 2

Matched to the same aircraft by N-number and date.