GAA16CA243

NTSB accident investigation · Piper PA-28 · Crystal River, FL · May 13, 2016

Accident · No injuriesData collectionFinal report
Date
May 13, 2016, 13:50 local (17:50 UTC)
Place
Crystal River, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N991APiper PA-28
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 25, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20160513008809A
Case key
93201

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 student pilot's failure to maintain directional control during the takeoff, which resulted in runway excursion and collision with a ditch. Contributing to the accident was the improper flap retraction procedure employed by the pilot during takeoff.

Findings · 5

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 · PilotPiper PA-28-181: 53 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28-181: 37 casesAll aircraft: 3,958 casesProbable cause
Flight control system: tE flap control systemAircraft › Aircraft systems · Incorrect use/operationPiper PA-28-181: 2 casesAll aircraft: 74 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotPiper PA-28-181: 10 casesAll aircraft: 1,391 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentPiper PA-28-181: 8 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 student pilot reported that shortly after the airplane rotated during the takeoff, he noticed that the flaps were extended. He further reported that about 20 feet above the ground he retracted the flaps from 25 degrees to zero degrees, and simultaneously encountered wind that pushed the airplane towards the ground and left of centerline. Once the airplane settled on the ground, he attempted to correct back to the center of the runway, but reported that the airplane veered off the runway to the left and impacted a ditch. A postaccident examination revealed substantial damage to the engine mount. According to the student pilot there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. A review of recorded data from the automated weather observation station located on the airport, revealed that, about 5 minutes after the accident the wind was 280 degrees true at 6 knots, wind gust 14 knots, visibility 10 statute miles, and sky clear. The airplane landed on runway 27. The Federal Aviation Administration has published the Airplane Flying Handbook FAA-H-8083-3A (2004). This handbook discusses retraction of the flaps and states in part: Depending on the airplane's altitude and airspeed, it may be wise to retract the flaps intermittently in small increments to allow time for the airplane to accelerate progressively as they are being raised. A sudden and complete retraction of the flaps could cause a loss of lift resulting in the airplane settling into the ground.

Factual narrative

The student pilot reported that shortly after the airplane rotated during the takeoff, he noticed that the flaps were extended. He further reported that about 20 feet above the ground he retracted the flaps from 25 degrees to zero degrees, and simultaneously encountered wind that pushed the airplane towards the ground and left of centerline. Once the airplane settled on the ground, he attempted to correct back to the center of the runway, but reported that the airplane veered off the runway to the left and impacted a ditch. A postaccident examination revealed substantial damage to the engine mount. According to the student pilot there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. A review of recorded data from the automated weather observation station located on the airport, revealed that, about 5 minutes after the accident the wind was 280 degrees true at 6 knots, wind gust 14 knots, visibility 10 statute miles, and sky clear. The airplane landed on runway 27. The Federal Aviation Administration has published the Airplane Flying Handbook FAA-H-8083-3A (2004). This handbook discusses retraction of the flaps and states in part: Depending on the airplane's altitude and airspeed, it may be wise to retract the flaps intermittently in small increments to allow time for the airplane to accelerate progressively as they are being raised. A sudden and complete retraction of the flaps could cause a loss of lift resulting in the airplane settling into the ground.

Aircraft

Registration
N991A
Reported as
Piper PA-28 (181)
Category
Airplane
Serial number
2843807
Built
2015
Airframe hours
475.6
Engine
Lycoming O-360-A4M, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Atp USA, Inc.
Registered owner
Archer Aero LLC.
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
100 hour · April 15, 2016
Departed
CGC · Crystal River, FL
Destination
CGC · Crystal River, FL
Airport
CGC · Crystal River-Captain Tom Davi, runway 27, 4,557 × 75 ft, asphalt
Equipment
Stall warning system, Electronic multifunction display, 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
Student pilot
Age
22
Injuries
None
Certificate
Student
Medical
Class 1, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
71.3 total · 71.3 in this make and model · 5.3 as pilot in command · 64.8 in the last 90 days · 24.8 in the last 30 days · 6.3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 6 knots, gusting 14
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 64 °F
Altimeter
30.03 inHg
Observed at
KCGC

Docket · 4

The files NTSB released with the investigation on July 20, 2016, 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.