GAA19CA343

NTSB accident investigation · Maule MX7 · Soldatna, AK · June 11, 2019

Accident · No injuriesData collectionFinal report
Date
June 11, 2019, 10:30 local (18:30 UTC)
Place
Soldatna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N61339Maule MX7
Defining event
Landing: Miscellaneous/other
Weather
Visual (VMC) · Day
Status
Completed · report April 13, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20190611006649A
Case key
99640

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 attempt to land on water in an airplane that was not equipped with floats.

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.

Aircraft capabilityAircraft › Aircraft oper/perf/capability · Incorrect use/operationMaule MX-7-180A: 1 caseAll aircraft: 57 casesProbable cause
Runway/land/takeoff/taxi surface: wet surfaceEnvironmental issues › Physical environment · Effect on operationMaule MX-7-180A: 1 caseAll aircraft: 141 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 pilot was flying an airplane equipped with tundra tires. He reported that, while landing the airplane on water, he realized that he "was still on [the] wheels"; it was not equipped with floats. Water entered the flight deck, the pilot egressed, and the airplane sank. The airplane sustained substantial damage to the windscreen. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

The pilot in the tailwheel-equipped airplane with tundra tires reported that, he made an approach to the lake. He flew the approach, and landed the airplane in the water, "Only then did I realize that I was still on wheels." Water entered the flight deck and the airplane sank. The airplane sustained substantial damage to the windscreen. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N61339
Reported as
Maule MX7 (180A)
Category
Airplane
Serial number
20013C
Built
1994
Airframe hours
796.3
Engine
Lycoming O-360-C4F, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Other
Last inspection
Annual · June 7, 2019
Departed
L85 · Soldatna, AK
Destination
L85 · Soldatna, AK
Airport
L85 · Mackeys Lakes, runway S, 3,000 × 1,000 ft, water
Equipment
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
72
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Medical
BasicMed, With waivers/limitations
Last flight review
June 22, 2019
Seat
Left
Restraint
3-point
Flight hours
3,000 total · 600 in this make and model · 3,000 as pilot in command · 12 in the last 90 days · 7 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 14 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 46 °F
Altimeter
29.95 inHg
Observed at
PASX, 4 nm away

Docket · 2

The files NTSB released with the investigation on November 5, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.2 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.