ERA14LA355

NTSB accident investigation · Pipistrel Alpha Trainer · Pompano Beach, FL · July 16, 2014

Accident · No injuriesLimited investigationFinal report
Date
July 15, 2014, 21:15 local (Jul 16, 2014, 01:15 UTC)
Place
Pompano Beach, FL
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N10PUPipistrel Alpha Trainer
Defining event
Approach-VFR pattern final: Fuel exhaustion
Weather
Visual (VMC) · Night
Status
Completed · report February 4, 2015
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20140715013679A
Case key
89732

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 miscalculation of the fuel quantity requirements, which resulted in fuel exhaustion.

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelPipistrel Lsa S R L ALPHA TRAINER: 3 casesAll aircraft: 1,695 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 pilot, during the preflight inspection, he determined that the airplane had 45 percent of its fuel capacity (5.7 of 12.7 usable gallons). He determined the fuel amount by viewing the indicators on the cockpit panel and by "dipping" the tank and noting that the fuel level was just below the halfway mark on the dip stick. He found no water or grit in the fuel. The pilot reported that the flight was intended to be 1 hour long and that, per the airplane's performance criteria, he calculated that the engine would consume 3.6 gallons of fuel during the flight. The pilot took off on the local flight, and, when the airplane was inbound toward his home airport, the engine "abruptly stopped." He then diverted toward a closer airport and attempted to restart the engine without success. While approaching the airport, he made shallow turns to align the airplane with a runway, but the airplane's left wing impacted a tree, and the airplane subsequently impacted the airport perimeter fence. The cockpit GPS indicated that the flight was 0.9 hour long. No fuel was found in the fuel tanks or lines, and no evidence of fuel leakage was found at the accident site.

Factual narrative

On July 15, 2014, about 2115 eastern daylight time, a Pipistrel ALPHA Trainer, N10PU, was substantially damaged during a forced landing while approaching Pompano Beach Airpark (PMP), Pompano Beach, Florida. The commercial pilot and the passenger were not injured. There was no flight plan for the local flight, which originated at Antiquers Aerodrome (FD08), Delray Beach, Florida. The personal flight was conducted under the provisions of 14 Code of Federal Regulations Part 91.According to the pilot, during the preflight inspection, he determined the airplane to have 45% of its fuel capacity, or 5.7 of 12.7 usable gallons. He determined the amount by viewing the indicators on the panel and by "dipping" the tank, noting the fuel level to be just below the half-way mark on the dip stick. No water or grit was found in the fuel. The pilot also noted that the flight was to be 1 hour in duration, and per performance criteria of the airplane, should have consumed 3.6 gallons. He further noted that after takeoff, he flew southbound at an altitude of 500 to 600 feet to South Beach, after which, he turned the airplane northbound to return to FD08. During the northbound trek, the pilot called Boca Raton Tower and received approval for direct routing to FD08. The pilot initiated a climb to FD08 pattern altitude, turned toward the airport, and the engine "abruptly stopped." He then turned the airplane toward PMP, advised Boca Raton Tower that he would be landing at PMP, and attempted an engine restart without success. The pilot then gradually descended the airplane from 600 feet, making "deliberate" shallow turns to align the airplane for landing on runway 28. The runway was in sight when the airplane's left wing impacted a tree between the Pompano Golf Course and the airport perimeter fence. The airplane yawed left, impacted the fence, and came to rest on the fence. Time logged on the cockpit GPS was 0.9 hours from FD08 to PMP. According to the responding Federal Aviation Administration (FAA) inspector, he found no fuel in the tanks or lines, and no evidence of fuel leakage.

Aircraft

Registration
N10PU
Reported as
Pipistrel Alpha Trainer
Category
Airplane
Serial number
451 AT 912 LSA
Built
2012
Airframe hours
180
Engine
Rotax 912UL, 80 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Second Wind Aircraft Services Inc
Registered owner
Second Wind Aircraft Services Inc
Airworthiness certificate
Special, Special light-sport (Special)
Last inspection
Annual · February 19, 2014 · 35 hours before
Departed
FD08 · Delray Beach, FL
Destination
FD08 · Delray Beach, FL
Airport
PMP · Pompano Beach Airpark, runway 28, 3,502 × 100 ft, asphalt
Equipment
Handheld GPS, Electronic flight bag or handheld device, Airframe parachute

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
39
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
March 8, 2014
Seat
Left
Restraint
4-point
Flight hours
5,732 total · 54 in this make and model · 5,320 as pilot in command · 65 in the last 90 days

Weather

Conditions
Visual (VMC) · Night
Wind
200° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 73 °F
Altimeter
30.00 inHg
Observed at
PMP, 5 nm away

Docket · 4

The files NTSB released with the investigation on January 5, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.1 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.