ERA14CA431

NTSB accident investigation · Piper PA-18A-150 · Gunthersville, AL · September 6, 2014

Accident · No injuriesData collectionFinal report
Date
September 6, 2014, 12:00 local (17:00 UTC)
Place
Gunthersville, AL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7089BPiper PA-18A-150
Defining event
Landing-flare/touchdown: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2014
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
FAA report
20140906018699A
Case key
90057

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 failure to retract the landing gear wheels prior to a water landing, resulting in a nose over upon touchdown.

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.

Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotPiper PA-18A 150: 4 casesAll aircraft: 1,391 casesProbable cause
Action: forgotten action/omissionPersonnel issues › Action/decision · PilotPiper PA-18A 150: 1 caseAll aircraft: 440 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, he was performing both water and pavement touch-and-go landings in his amphibious airplane. On final approach for a water landing, he observed a jet ski come out of a slew area and his attention was drawn to it. Upon landing, "I found myself inverted." Federal Aviation Administration inspectors responded to the accident site and examined the wreckage. The landing gear and the cockpit-mounted landing gear switch were found in the down (extended) positions. A cockpit placard was installed, that stated, "DO NOT LAND ON WATER UNLESS GEAR IS FULLY RETRACTED." The pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

According to the pilot, he was performing both water and pavement touch-and-go landings in his amphibious airplane. On final approach for a water landing, he observed a jet ski come out of a slew area and his attention was drawn to it. Upon landing, "I found myself inverted." Federal Aviation Administration inspectors responded to the accident site and examined the wreckage. The landing gear and the cockpit-mounted landing gear switch were found in the down (extended) positions. A cockpit placard was installed, that stated, "DO NOT LAND ON WATER UNLESS GEAR IS FULLY RETRACTED." The pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N7089B
Reported as
Piper PA-18A-150
Category
Airplane
Serial number
18-5172
Built
1956
Engine
Lycoming 0-320 SERIES, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 1, 2014
Departed
8A1 · Guntersville, AL
Destination
8A1 · Guntersville, AL

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
62
Injuries
None
Certificates
Private, Commercial
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
October 31, 2013
Seat
Front
Restraint
4-point
Flight hours
3,300 total · 250 in this make and model · 2,800 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 77 °F
Altimeter
30.07 inHg
Observed at
8A0, 10 nm away

Docket · 6

The files NTSB released with the investigation on October 15, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.5 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.