ERA11CA061

NTSB accident investigation · Cessna 172N · Gaithersburg, MD · November 14, 2010

Accident · No injuriesData collectionFinal report
Date
November 14, 2010, 15:30 local (20:30 UTC)
Place
Gaithersburg, MD
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N249ERCessna 172N
Defining event
Landing-landing roll: Runway excursion
Weather
Visual (VMC) · Day
Status
Completed · report May 26, 2011
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20101114050759A
Case key
77816

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 inadequate use of the rudder, and subsequent loss of directional control.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 172N: 82 casesAll aircraft: 3,958 casesProbable cause
Flight control system: rudder control systemAircraft › Aircraft systems · Not used/operatedCessna 172N: 1 caseAll aircraft: 93 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

According to the student pilot, he completed a stabilized approach to the runway, with the airspeed 5 knots higher than the prescribed approach speed due to the 8 knot headwind condition. During the landing flare, the airplane encountered a gust of wind, and bounced on the runway. He said he added power to slow the descent, but the airplane ballooned again with some drift to the left. He decided to execute a go around, and as he applied full power without adding rudder, the airplane veered to the left and departed the left side of the runway. He then reduced the power in an attempt to regain directional control of the airplane, but it continued forward until the nose gear collapsed and the airplane came to rest in a grassy area to the left of the runway. During the accident sequence, the airplane incurred substantial damage to the firewall and left wing. The student pilot reported there were no mechanical anomalies with the airplane. The wind reported at the airport about the time of the accident was from 150 degrees at 8 knots.

Factual narrative

According to the student pilot, he completed a "stabilized" approach to runway 14, with the airspeed 5 knots higher than the prescribed approach speed due to the wind conditions. During the landing flare, the pilot "felt wind shear that caused the touchdown,and the airplane ballooned back into the air to about 20 feet." The student pilot then added power to slow the descent, and the airplane "ballooned again with some drift to the left." The student pilot then decided to go around, and as he "applied full power without adding rudder," the airplane veered to the left and departed the left side of the runway. The student pilot then reduced power in an attempt to regain directional control of the airplane, but it continued forward until the nose landing gear collapsed and it came to rest in a grassy area to the left of the runway. During the accident sequence, the airplane incurred substantial damage to the firewall and left wing. The student pilot reported that there were no mechanical anomalies with the airplane. The winds reported at the airport about the time of the accident were from 150 degrees at 8 knots.

Aircraft

Registration
N249ER
Reported as
Cessna 172N
Category
Airplane
Serial number
17269782
Airframe hours
13,026
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
WIFA (Washington International Flight Academy)
Registered owner
WIFA (Washington International Flight Academy)
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · September 19, 2009
Departed
FDK · Frederick, MD
Destination
GAI · Gaithersburg, MD
Flight plan
VFR
Airport
GAI · Montgomery County Airpark, runway 14, 4,200 × 75 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
Student pilot
Age
51
Injuries
None
Certificate
Student
Medical
Class 2, Without waivers/limitations
Seat
Left
Flight hours
105 total · 32 in this make and model · 23 as pilot in command · 32 in the last 90 days · 32 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 34 °F
Altimeter
30.02 inHg
Observed at
GAI

Docket · 3

The files NTSB released with the investigation on December 27, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 879 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.