CEN10CA199

NTSB accident investigation · Cessna 172 · Lawton, OK · April 9, 2010

Accident · Serious injuriesData collectionFinal report
Date
April 8, 2010, 19:50 local (Apr 9, 2010, 00:50 UTC)
Place
Lawton, OK
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N12614Cessna 172
Defining event
Landing: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report August 12, 2010
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Oklahoma City FSDO
FAA report
20100408031289A
Case key
75716

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 private pilot's failure to maintain adequate airspeed, which resulted in a stall, and the failure of both pilots to initiate a go-around. Contributing to the severity of both pilots' injuries was the lack of available shoulder harnesses.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 172M: 24 casesAll aircraft: 1,681 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · PilotCessna 172M: 20 casesAll aircraft: 894 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotCessna 172M: 20 casesAll aircraft: 894 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The private pilot was completing a biennial flight review with a flight instructor. He was demonstrating a simulated short, soft-field landing over a simulated 50-foot obstacle on a 8,599-foot-long by 150-foot-wide concrete runway. The pilot allowed the airspeed to decrease to 40 knots at 50 feet above the runway and both the pilot and flight instructor failed to execute a go-around. The airplane then stalled, landed hard, and came to rest approximately 175 feet from the initial impact point. There was substantial damage to the engine mounts, nose gear and the firewall. There was a postimpact fuel spill, but no postimpact fire. Both pilots exited the airplane unassisted. The private pilot received minor injuries and the flight instructor received serious injuries. Because of the airplane's year of manufacture shoulder harness installation was not required and none were installed.

Factual narrative

The private pilot was completing a biennial flight review with a flight instructor. He was demonstrating a simulated short, soft field landing over a simulated 50 foot obstacle on a 8,599 foot long by 150 foot wide concrete runway. The pilot allowed the airspeed to decrease to 40 knots at 50 feet above the runway and both the pilot and flight instructor failed to execute a go-around. The airplane then stalled, landed hard, and came to rest approximately 175 feet from the initial impact point. There was substantial damage to the engine mounts, nose gear and the firewall. There was a post-impact fuel spill, but no post-impact fire. Both pilots exited the airplane unassisted. The private pilot received minor injuries and the flight instructor received serious injuries. The airplane was not equipped with shoulder harnesses. Because of the airplane’s year of manufacture shoulder harness installation was not required.

Aircraft

Registration
N12614
Reported as
Cessna 172 (M)
Category
Airplane
Serial number
172-62114
Airframe hours
8,046
Engine
Lycoming O320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 9, 2009
Departed
LAW · Lawton, OK
Destination
LAW · Lawton, OK
Airport
LAW · Lawton-Fort Sill Regional, runway 17, 8,599 × 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
54
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
April 29, 2008
Seat
Left
Flight hours
463 total · 413 in this make and model · 405 as pilot in command · 11 in the last 90 days · 5 in the last 30 days · 2 in the last 24 hours
Role
Flight instructor
Age
28
Injuries
Serious
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
September 4, 2008
Seat
Right
Flight hours
588 total · 381 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 36 °F
Altimeter
30.03 inHg
Observed at
LAW, 1 nm away

Docket · 2

The files NTSB released with the investigation on May 10, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 353 KB in all.

FAA reports on this event · 1

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