ANC14CA043

NTSB accident investigation · Piper PA 18-135 · Beluga, AK · June 19, 2014

Accident · No injuriesData collectionFinal report
Date
June 18, 2014, 18:00 local (Jun 19, 2014, 02:00 UTC)
Place
Beluga, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N27293Piper PA 18-135
Defining event
Takeoff: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2014
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20140618010019A
Case key
89495

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 loss of control when encountering a downdraft during the initial climb after takeoff, resulting in a collision with brush and terrain.

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: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-135: 2 casesAll aircraft: 265 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-135: 17 casesAll aircraft: 9,295 casesProbable cause
Wind: downdraftEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-18-135: 1 caseAll aircraft: 178 cases
Object/animal/substance: debris/dirt/foreign objectEnvironmental issues › Physical environment · Contributed to outcomePiper PA-18-135: 1 caseAll aircraft: 101 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 reported that he was departing from a small remote lake in a float-equipped airplane. He said that during the initial climb he encountered a strong downdraft, and he selected an area of marshy, brush-covered terrain as a forced landing site. During touchdown, the left wing collided with a stand of tall brush, which pivoted the airplane 90-degrees to the left, and the airplane's left float subsequently struck the shoreline. The airplane sustained substantial damage to the left wing. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that he was departing from a small remote lake in a float-equipped airplane. He said that during the initial climb he encountered a strong downdraft, and he selected an area of marshy, brush-covered terrain as a forced landing site. During touchdown, the left wing collided with a stand of tall brush, which pivoted the airplane 90-degrees to the left, and the airplane's left float subsequently struck the shoreline. The airplane sustained substantial damage to the left wing. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N27293
Reported as
Piper PA 18-135
Category
Airplane
Serial number
18-3367
Built
1954
Airframe hours
3,600
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 6, 2013
Departed
Beluga, AK
Destination
Chugaik, AK

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
65
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Seat
Front
Flight hours
8,000 total · 2,000 in this make and model · 20 in the last 90 days · 10 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 11 knots
Visibility
10 statute miles
Lowest ceiling
3,900 ft broken
Temperature
50 °F, dew point 45 °F
Altimeter
29.77 inHg
Turbulence
Unknown
Observed at
PAEN, 29 nm away

Docket · 1

The files NTSB released with the investigation on October 7, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 683 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.

Other investigations on N27293 · 1

Matched to the same aircraft by N-number and date.