WPR09CA260

NTSB accident investigation · Stinson SR-8B · Tacoma, WA · May 24, 2009

Accident · No injuriesData collectionFinal report
Date
May 24, 2009, 13:40 local (20:40 UTC)
Place
Tacoma, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N17119Stinson SR-8B
Defining event
Landing-landing roll: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed · report October 19, 2009
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20090524006489I
Case key
73895

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 application of unintended braking input due to the pilot's failure to keep his feet correctly positioned on the rudder pedals during the landing roll.

Findings · 2

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.

Landing gear system: landing gear brakes systemAircraft › Aircraft systems · Unintentional use/operationStinson SR-8B: 1 caseAll aircraft: 92 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotStinson SR-8B: 1 caseAll aircraft: 1,386 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

During a firmer than normal three-point touchdown in the tail wheel-equipped airplane, the pilot's feet slid down low on the rudder pedals, where they inadvertently came in contact with the floor-mounted heel brakes. Therefore, as the pilot made directional control inputs to the rudder pedals, he also made unintended brake applications. Those brake applications resulted in the airplane rolling up onto its nose, and then falling off to one side. When it fell off to one side, the end of the wing came in contact with the runway, resulting in damage to its interior primary structure. The pilot said there was no malfunction of the rudder or braking systems.

Factual narrative

During a firmer than normal three-point touchdown in the tail wheel-equipped airplane, the pilot's feet slid down low on the rudder pedals, where they inadvertently came in contact with the floor-mounted heel brakes. Therefore, as the pilot made directional control inputs to the rudder pedals, he also made unintended brake applications. Those brake applications resulted in the airplane rolling up onto its nose, and then falling off to one side. When it fell off to one side, the end of the wing came in contact with the runway, resulting in damage to its interior primary structure. The pilot said there was no malfunction of the rudder or braking systems.

Aircraft

Registration
N17119
Reported as
Stinson SR-8B
Category
Airplane
Serial number
9819
Airframe hours
4,948
Engine
Lycoming R-680-13, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Culver Donald E
Registered owner
Culver Donald E
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2008
Departed
S50 · Auburn, WA
Destination
KTIW · Tacoma, WA
Airport
KTIW · Tacoma Narrows, runway 17, 5,002 × 150 ft, asphalt

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
82
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
March 7, 2008
Seat
Left
Flight hours
23,000 total · 81 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None

Docket · 1

The files NTSB released with the investigation on June 19, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 785 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.

Other investigations on N17119 · 1

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