CEN14CA343

NTSB accident investigation · Cessna 170B · Tomball, TX · July 4, 2014

Accident · Minor injuriesData collectionFinal report
Date
July 4, 2014, 14:30 local (19:30 UTC)
Place
Tomball, TX
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N170CCCessna 170B
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report August 14, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards
FAA report
20140704009969A
Case key
89615

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 loss of directional control during landing rollout, which resulted in a runway excursion and the tailwheel airplane nosing over.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCessna 170B: 91 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 170B: 74 casesAll aircraft: 3,958 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 he was conducting practice takeoffs and full-stop landings with the airplane owner in the right seat for the purposes of achieving tailwheel airplane currency. The airplane insurance company required pilots to be checked out by the airplane owner before naming them on the policy. The airplane owner was not a flight instructor. The pilot stated that on the second landing, the airplane touched down on the runway centerline and on all three wheels simultaneously. As the airplane slowed, it began to veer to the left. The pilot responded with right rudder input. The airplane subsequently veered to the right "more assertively" than he had intended. Rather than risk striking a runway light while attempting to keep the airplane on the runway, he elected to enter what appeared to be an open grass area adjacent to the runway pavement. However, about 25 feet into the grass, the airplane encountered "marshy area" with standing water and soft mud, causing it to nose over. The airplane sustained substantial damage to the vertical stabilizer and fuselage. The pilot stated that there were no failures or malfunctions associated with the airplane before the accident. He commented that he had received a tailwheel airplane endorsement about 3 years before the accident, with limited tailwheel airplane time accumulated since then. He added that the airplane owner suggested that he be more "assertive with the rudders" after the pilot's initial landing during the accident flight.

Factual narrative

The pilot reported that he was conducting practice takeoffs and full-stop landings with the airplane owner in the right seat for the purposes of achieving tailwheel airplane currency. The airplane insurance company required pilots to be checked out by the airplane owner before naming them on the policy. The airplane owner was not a flight instructor. The pilot stated that on the second landing, the airplane touched down on the runway centerline and on all three wheels simultaneously. As the airplane slowed, it began to veer to the left. The pilot responded with right rudder input. The airplane subsequently veered to the right "more assertively" than he had intended. Rather than risk striking a runway light while attempting to keep the airplane on the runway, he elected to enter what appeared to be an open grass area adjacent to the runway pavement. However, about 25 feet into the grass, the airplane encountered "marshy area" with standing water and soft mud, causing it to nose over. The airplane sustained substantial damage to the vertical stabilizer and fuselage. The pilot stated that there were no failures or malfunctions associated with the airplane before the accident. He commented that he had received a tailwheel airplane endorsement about 3 years before the accident, with limited tailwheel airplane time accumulated since then. He added that the airplane owner suggested that he be more "assertive with the rudders" after the pilot's initial landing during the accident flight.

Aircraft

Registration
N170CC
Reported as
Cessna 170B
Category
Airplane
Serial number
27063
Built
1955
Airframe hours
3,250
Engine
Lycoming O-340-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 15, 2014 · 1.4 hours before
Departed
DWH · Tomball, TX
Destination
DWH · Tomball, TX
Airport
DWH · David Wayne Hooks Memorial, runway 17R, 7,009 × 100 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
61
Injuries
Minor
Certificates
Flight engineer, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
May 1, 2013
Seat
Left
Restraint
3-point
Flight hours
9,600 total · 1 in this make and model · 5,220 as pilot in command · 140 in the last 90 days · 50 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 72 °F
Altimeter
30.13 inHg
Observed at
DWH, 1 nm away

Docket · 1

The files NTSB released with the investigation on August 6, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.6 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.