GAA20CA004

NTSB accident investigation · Reed Mike Smiths Super CUB · Triangle, ID · October 5, 2019

Accident · No injuriesData collectionFinal report
Date
October 5, 2019, 09:15 local (15:15 UTC)
Place
Triangle, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N677MReed Mike Smiths Super CUB
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report May 21, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20191005019029A
Case key
100376

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 excessive use of brakes during the landing roll, which resulted in a nose-over.

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: surface speed/brakingAircraft › Aircraft oper/perf/capability · Capability exceededReed Mike SMITHS SUPER CUB: 1 caseAll aircraft: 238 casesProbable cause
Landing gear system: brakeAircraft › Aircraft systems · Incorrect use/operationReed Mike SMITHS SUPER CUB: 1 caseAll aircraft: 297 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 pilot reported that, during the landing roll on a dirt airstrip, the airplane skidded on a thin layer of frost on the dirt. He applied the brakes, and as the airplane transitioned to dry gravel, it nosed over. He added that he believed that the braking pressure he applied was excessive for the gravel portion of the airstrip. The airplane sustained substantial damage to the right-wing lift strut and rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that, during the landing roll on a dirt airstrip, the airplane skidded on a thin layer of frost on the dirt. He applied the brakes, and as the airplane transitioned to dry gravel, the airplane nosed over. He added that he believed that the braking pressure he applied was excessive for the dry portion of the airstrip. The airplane sustained substantial damage to the right wing lift strut and rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N677M
Reported as
Reed Mike Smiths Super CUB (No Series)
Category
Airplane
Serial number
003
Built
2005
Airframe hours
1,046
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · June 16, 2019
Departed
EUL · Caldwell, ID
Destination
2ID3 · Triangle, ID
Airport
2ID3 · Josephine Ranch, runway 32, 2,500 × 40 ft, gravel
Equipment
ADS-B, Electronic primary flight display

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
49
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
March 6, 2018
Seat
Center
Flight hours
2,124.1 total · 368 in this make and model · 2,124.1 as pilot in command · 86.1 in the last 90 days · 8.3 in the last 30 days · 1.3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
34 °F, dew point 34 °F
Altimeter
30.32 inHg
Observed at
KMUO, 40 nm away

Docket · 3

The files NTSB released with the investigation on November 26, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.7 MB 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.