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NTSB accident investigation · Great Lakes 2T1A · Port St. Lucie, FL · September 16, 2016

Accident · No injuriesData collectionFinal report
Date
September 16, 2016, 19:00 local (23:00 UTC)
Place
Port St. Lucie, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3771FGreat Lakes 2T1A
Defining event
Landing-landing roll: Miscellaneous/other
Weather
Visual (VMC) · Day
Status
Completed · report December 15, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20160916015659A
Case key
94080

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 failure to avoid the drainage pipe during the landing roll on a private grass airstrip. Contributing to the accident was the pilot's reduced forward view from the rear seat.

Findings · 3

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.

Physical workspace: visibilityEnvironmental issues › Task environment · Effect on personnelGreat Lakes 2T-1A-2: 2 casesAll aircraft: 25 casesProbable cause
Object/animal/substanceEnvironmental issues › Physical environment · Effect on operationGreat Lakes 2T-1A-2: 1 caseAll aircraft: 224 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 pilot of the tandem-seat, tailwheel equipped biplane reported that he was flying from the rear seat which limits his forward view, "especially in the landing configuration". He further reported that during the landing roll on a private grass airstrip, the biplane impacted a drainage pipe, which resulted in a collapsed left landing gear and substantial damage to both lower wings and the lower right aileron. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Factual narrative

The pilot of the tandem-seat, tailwheel equipped biplane reported that he was flying from the rear seat which limits his forward view, "especially in the landing configuration". He further reported that during the landing roll on a private grass airstrip, the biplane impacted a drainage pipe, which resulted in a collapsed left landing gear and substantial damage to both lower wings and the lower right aileron. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Aircraft

Registration
N3771F
Reported as
Great Lakes 2T1A (2)
Category
Airplane
Serial number
0764
Built
1977
Airframe hours
678
Engine
Lycoming AEIO-360-B1G6, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Aerobatic
Last inspection
Annual · June 10, 2016
Departed
FXE · Fort Lauderdale, FL
Destination
FL37 · Port St. Lucie, FL
Airport
FL37 · Treasure Coast Airpark, runway 09, 4,000 × 100 ft, grass/turf
Equipment
Electronic flight bag or handheld device

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
66
Injuries
None
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, With waivers/limitations
Last flight review
June 30, 2016
Seat
Rear
Flight hours
14,500 total · 65 in this make and model · 14,300 as pilot in command · 85 in the last 90 days · 20 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 3 knots
Visibility
7 statute miles
Temperature
84 °F, dew point 77 °F
Altimeter
30.00 inHg
Observed at
KSUA, 15 nm away

Docket · 2

The files NTSB released with the investigation on November 9, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 746 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.