ERA17LA311

NTSB accident investigation · Piper PA32R · Merritt Island, FL · September 3, 2017

Accident · No injuriesLimited investigationFinal report
Date
September 3, 2017, 09:20 local (13:20 UTC)
Place
Merritt Island, FL
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N544DGPiper PA32R
Defining event
Takeoff: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report April 8, 2019
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20170903017589A
Case key
95951

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 inadequate preflight planning and improper takeoff technique, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall.

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 · PilotPiper PA-32R-300: 14 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-32R-300: 4 casesAll aircraft: 990 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 private pilot attempted to take off for the personal flight with three passengers from a 3,601-ft-long asphalt runway. Video footage and a witness confirmed that the airplane did not rotate and become airborne until it was near the end of the runway. The nose initially pitched up about 5°, and the airplane climbed about 20 to 30 ft above ground level. As the airplane approached trees, the nose pitched up about 15° and the left wing dropped, consistent with a stall. Examination of the wreckage did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. Pilot estimates regarding occupant/baggage weights and the available fuel on board suggest that the airplane was slightly below its maximum allowable takeoff weight. However, although the exact baggage weight and fuel load during takeoff could not be determined, witness estimates of baggage weight and the airplane's total capacity for usable fuel suggest that the airplane was likely at or above its maximum gross weight. The pilot reported that he rotated the airplane at 80 knots. He also initially reported that he attempted the takeoff with "two notches" of flap extension but subsequently stated that the takeoff was with the flaps retracted. Although performance data indicate that the takeoff could be accomplished in about 2,900 ft at maximum gross weight with flaps retracted, the pilot likely did not fly the airplane at the optimal airspeeds recommended in the pilot's operating handbook for the airplane make and model, which were 64 knots at rotation and 69 knots at an altitude of 50 ft.

Factual narrative

On September 3, 2017, about 0920 eastern daylight time, a Piper PA-32R-300, N544DG, was substantially damaged when it collided with water during takeoff at Merritt Island Airport (KCOF), Merritt Island, Florida. The private pilot and three passengers were not injured. The personal flight was conducted under the provisions of Title 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and a visual flight rules flight plan was filed for the planned flight to Marsh Harbour International Airport (MYAM), Marsh Harbour, Bahamas.The pilot reported that prior to the flight, he fueled the airplane to a total of 80 gallons of 100-low-lead aviation gasoline. He then completed a preflight inspection of the airplane and subsequent engine run-up prior to takeoff, with no anomalies noted. The pilot added that although the automated surface observation system reported the wind from 350° at 5 knots, the wind was light and variable at the time of the accident. Additionally, an airplane was in the airport traffic pattern and using runway 11, so the pilot elected to depart in that direction. The pilot initially stated that he extended the flaps "two notches" and rotated the airplane at 80 knots, about two-thirds down the 3,601-foot asphalt runway. He later stated that the flaps were retracted during the takeoff attempt. A witness, who was a flight instructor at a fixed-based-operator, was standing near a hangar and observed the accident takeoff. The witness stated that his attention was drawn to the accident airplane as it used more of a ground roll during the takeoff attempt than what he was accustomed to seeing. Specifically, the airplane did not rotate until about 2,300 feet down the runway. The nose initially pitched up about 5° and the airplane climbed about 20 to 30 feet above ground level. Then, as the airplane approached trees, the nose pitched up about 15° and the left wing dropped, consistent with a stall. The witness added that the pilot initially reported the engine "quit," but the witness heard engine noise throughout the takeoff, until the airplane impacted the water. Review of airport surveillance video revealed that the airplane had not lifted off as it traveled off the right side of camera view, about 600 feet prior to the departure end of the runway. Examination of the wreckage by a Federal Aviation Administration inspector did not reveal any preimpact mechanical malfunctions. The inspector rotated the propeller and confirmed crankshaft, camshaft, and valve train continuity to the rear accessory section of the engine. During rotation, the inspector noted saltwater emitting from the exhaust. The inspector did not attempt a test-run of the engine as saltwater remained in the engine and had corroded one of the magnetos. The pilot provided weights of the occupants and baggage, and estimated 75 gallons of fuel onboard at takeoff. Based on information provided by the pilot, the airplane was about 117 lbs. below its maximumtakeoff weight of 3,600 lbs. The witness estimated 12 bags on board and their combined weight more than double the 100 lbs. that the pilot reported; however, the bags were wet after the accident and could not be accurately weighed. Additionally, the airplane held a total of 94 gallons of useable fuel and the exact fuel load during the takeoff attempt could not be determined. The recorded weather at an airport located about 8 miles southeast of the accident site, at 0853, was: wind from 330° at 6 knots; visibility 10 miles; few clouds at 6,500 ft; temperature 26° C; dew point 24° C; altimeter 30.09 inches of mercury. Review of a pilot's operating handbook for the make and model airplane revealed that at 80° F, with flaps retracted, at 3,600 lbs., with a 3-knot tailwind, at sea level, the airplane required about 2,900 feet to clear a 50-foot barrier. The data assumed a liftoff speed of 64 knots and a barrier speed of 69 knots.

Aircraft

Registration
N544DG
Reported as
Piper PA32R (300)
Category
Airplane
Serial number
32R-7780440
Built
1977
Airframe hours
1,897
Engine
Lycoming IO-540, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 1, 2016 · 113 hours before
Departed
KCOI · Merritt Island, FL
Destination
MYAM · Marsh Harbour
Flight plan
VFR
Airport
KCOI · Merritt Island Airport, runway 11, 3,601 × 75 ft, asphalt
Equipment
Handheld GPS, Onboard weather, 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
Pilot
Age
43
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3
Last flight review
February 18, 2016
Seat
Left
Restraint
3-point
Flight hours
627 total · 65 in this make and model · 627 as pilot in command · 10 in the last 90 days · 0 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 75 °F
Altimeter
30.09 inHg
Observed at
KCOF, 8 nm away

Docket · 9

The files NTSB released with the investigation on November 28, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 40.8 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.