GAA16CA194

NTSB accident investigation · Cessna 172 · Stillwater, OK · April 15, 2016

Accident · No injuriesData collectionFinal report
Date
April 15, 2016, 18:32 local (23:32 UTC)
Place
Stillwater, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2663XCessna 172
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report June 15, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20160415005139A
Case key
93041

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 student pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and collision with a runway distance remaining sign.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotCessna 172R: 75 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 172R: 37 casesAll aircraft: 3,958 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensateCessna 172R: 11 casesAll aircraft: 1,008 cases
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensateCessna 172R: 10 casesAll aircraft: 1,199 cases

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 solo student pilot reported that while landing in gusty crosswind conditions the airplane bounced multiples times on touchdown. The student pilot further reported that the airplane drifted off the runway to the right and impacted a runway distance remaining sign with the right elevator, which resulted in substantial damage to the elevator. An automated weather observing station at the accident airport, about the time of the accident, reported the wind at 120 degrees true at 16 knots, gusting to 21 knots, which resulted in a 14 knot crosswind component for the landing on runway 17. The student pilot did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation. The flight school's policies and procedures in part states: "All flights, excluding stage 2 pilot, will use the "maximum demonstrated" crosswind in the aircraft [Pilot's Operating Handbook] POH/ [Airplane Flying Manual] AFM as the maximum allowable crosswind takeoff limit." The student pilot was not a "stage 2 pilot" and had no additional crosswind limitations listed in his logbook endorsements. The Cessna 172R maximum demonstrated crosswind was listed as 15 knots. According to the flight instructor, the student pilot has demonstrated satisfactory performance in previous instructional flights under similar wind conditions.

Factual narrative

The solo student pilot reported that while landing in gusty crosswind conditions the airplane bounced multiples times on touchdown. The student pilot further reported that the airplane drifted off the runway to the right and impacted a runway distance remaining sign with the right elevator, which resulted in substantial damage to the elevator. An automated weather observing station at the accident airport, about the time of the accident, reported the wind at 120 degrees true at 16 knots, gusting to 21 knots, which resulted in a 14 knot crosswind component for the landing on runway 17. The student pilot did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation. The flight school's policies and procedures in part states: "All flights, excluding stage 2 pilot, will use the "maximum demonstrated" crosswind in the aircraft [Pilot's Operating Handbook] POH/ [Airplane Flying Manual] AFM as the maximum allowable crosswind takeoff limit." The student pilot was not a "stage 2 pilot" and had no additional crosswind limitations listed in his logbook endorsements. The Cessna 172R maximum demonstrated crosswind was listed as 15 knots. According to the flight instructor, the student pilot has demonstrated satisfactory performance in previous instructional flights under similar wind conditions.

Aircraft

Registration
N2663X
Reported as
Cessna 172 (R)
Category
Airplane
Serial number
17280643
Built
1999
Airframe hours
10,924.3
Engine
Lycoming IO-360-L2A, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Spartan Education LLC.
Registered owner
Spartan Education LLC.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · February 29, 2016
Departed
MLC · McAlester, OK
Destination
SWO · Stillwater, OK
Flight plan
VFR
Airport
SWO · Stillwater Rgnl, runway 17, 7,401 × 100 ft, concrete
Equipment
Stall warning system

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
Student pilot
Age
25
Injuries
None
Certificate
Student
Medical
Class 2, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
47 total · 47 in this make and model · 47 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 16 knots, gusting 21
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 52 °F
Altimeter
29.81 inHg
Observed at
KSWO

Docket · 4

The files NTSB released with the investigation on June 9, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 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.