ERA14CA375

NTSB accident investigation · Cessna 172N · Valkaria, FL · August 6, 2014

Accident · Minor injuriesData collectionFinal report
Date
August 6, 2014, 09:30 local (13:30 UTC)
Place
Valkaria, FL
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9400ECessna 172N
Defining event
Landing-flare/touchdown: Runway excursion
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2014
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA FSDO
FAA report
20140806015069A
Case key
89807

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's misjudgment of speed and distance on final approach during a precautionary landing, resulting in a touchdown off the departure end of the runway and collision with terrain. A factor in the accident was a partial loss of engine power for reasons that could not be determined in post accident testing.

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: airspeedAircraft › Aircraft oper/perf/capability · Incorrect use/operationCessna 172N: 19 casesAll aircraft: 1,681 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Incorrect use/operationCessna 172N: 16 casesAll aircraft: 809 casesProbable cause
Not determinedNot determined › Not determined · Unknown/Not determinedCessna 172N: 24 casesAll aircraft: 2,247 casesProbable cause
Info processing/decision: decision making/judgmentPersonnel issues › Action/decision · Student/instructed pilotCessna 172N: 41 casesAll aircraft: 3,098 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, she had just landed after a local instructional flight. Her instructor completed the solo endorsement in her logbook as they taxied back to the arrival end of the runway 28. The student pilot then taxied on to runway 28 for departure. She applied full throttle and the airplane lifted off the runway normally. At approximately 500 feet above ground level the engine began to run rough and dropped to 1900 RPMs. The student pilot immediately lowered the nose of the airplane to attain best glide speed and started a left hand turn to return to the airport. She attempted to land on runway 10. Approximately 20 seconds after the engine began running rough the pilot applied the carburetor heat and then reduced the throttle to idle. The student pilot did not attempt however to increase power after the application of carburetor heat and the throttle remained in the idle position for the remainder of the approach. The pilot then applied full flaps as the airplane was descending over midfield. The airplane overflew the runway and touched down in the grass immediately off the departure end of runway 10. The airplane subsequently struck a fence and nosed over. Post accident examination of the airplane and engine showed no evidence of mechanical failure or malfunction. The engine was started and operated with no signs of failure. A review of the carburetor icing probability chart shows the aircraft was operating in conditions that were not conductive to carburetor icing at the time of the accident. The pilot had 43 total flight hours.

Factual narrative

According to the student pilot, she had just landed after a local instructional flight. Her instructor completed the solo endorsement in her logbook as they taxied back to the arrival end of the runway 28. The student pilot then taxied on to runway 28 for departure. She applied full throttle and the airplane lifted off the runway normally. At approximately 500 feet above ground level the engine began to run rough and dropped to 1900 RPMs. The student pilot immediately lowered the nose of the airplane to attain best glide speed and started a left hand turn to return to the airport. She attempted to land on runway 10. Approximately 20 seconds after the engine began running rough the pilot applied the carburetor heat and then reduced the throttle to idle. The student pilot did not attempt however to increase power after the application of carburetor heat and the throttle remained in the idle position for the remainder of the approach. The pilot then applied full flaps as the airplane was descending over midfield. The airplane overflew the runway and touched down in the grass immediately off the departure end of runway 10. The airplane subsequently struck a fence and nosed over. Post accident examination of the airplane and engine showed no evidence of mechanical failure or malfunction. The engine was started and operated with no signs of failure. A review of the carburetor icing probability chart shows the aircraft was operating in conditions that were not conductive to carburetor icing at the time of the accident. The pilot had 43 total flight hours.

Aircraft

Registration
N9400E
Reported as
Cessna 172N
Category
Airplane
Serial number
17272249
Built
1979
Airframe hours
6,940
Engine
Lycoming 0-320 SERIES, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 18, 2014 · 100 hours before
Departed
X59 · Valkaria, FL
Destination
X59 · Valkaria, FL
Airport
X59 · Valkaria, runway 10, 4,000 × 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
Pilot
Age
17
Injuries
Minor
Certificate
Student
Medical
Class 3, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
43 total · 43 in this make and model · 43 in the last 90 days · 43 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 79 °F
Altimeter
30.05 inHg
Observed at
MLB, 10 nm away

Docket · 7

The files NTSB released with the investigation on October 16, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.0 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.