Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Juneau, Alaska
Investigation Docket - National Transportation Safety Board:
Location: Anchorage, Alaska
Accident Number: ANC20CA045
Date & Time: April 30, 2020, 17:15 Local
Registration: N91040
Aircraft: Grumman G44
Aircraft Damage: Substantial
Defining Event: Landing gear not configured
Injuries: 2 None
Flight Conducted Under: Part 91: General aviation - Personal
Analysis
The pilot reported that he failed to extend the landing gear on the amphibious airplane for a landing to an asphalt runway. Subsequently, the airplane landed with the landing gear in the retracted position, which resulted in substantial damage to the fuselage.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's failure to extend the landing gear for a runway landing, which resulted in a gear-up landing.
Findings
Aircraft Gear extension and retract sys - Not used/operated
Personnel issues Forgotten action/omission - Pilot
Factual Information
History of Flight
Landing-flare/touchdown Landing gear not configured (Defining event)
Pilot Information
Certificate: Airline transport; Commercial
Age: 53,Male
Airplane Rating(s): Single-engine land; Single-engine sea; Multi-engine land; Multiengine sea
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 With waivers/limitations
Last FAA Medical Exam: March 17, 2020
Occupational Pilot: Yes
Last Flight Review or Equivalent: October 11, 2019
Flight Time: (Estimated) 16028 hours (Total, all aircraft), 228 hours (Total, this make and model), 15768 hours (Pilot In Command, all aircraft), 57 hours (Last 90 days, all aircraft), 48 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Make: Grumman
Registration: N91040
Model/Series: G44
Aircraft Category: Airplane
Year of Manufacture: 1942
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 1267
Landing Gear Type: Retractable - Tailwheel
Seats: 6
Date/Type of Last Inspection: December 27, 2019 Annual
Certified Max Gross Wt.: 5500 lbs
Time Since Last Inspection:
Engines: 2 Reciprocating
Airframe Total Time: 10946 Hrs as of last inspection
Engine Manufacturer: Continental
ELT: C126 installed, not activated
Engine Model/Series: IO-470D
Registered Owner:
Rated Power: 260 Horsepower
Operator: On file
Operating Certificate(s) Held: On-demand air taxi (135)
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual (VMC)
Condition of Light: Day
Observation Facility, Elevation: PAMR,138 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 00:53 Local
Direction from Accident Site: 281°
Lowest Cloud Condition:
Visibility: 8 miles
Lowest Ceiling: Broken / 5500 ft AGL
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: /
Wind Direction: 180°
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 29.63 inches Hg
Temperature/Dew Point: 10°C / -1°C
Precipitation and Obscuration: Light - None - Rain
Departure Point: Wasilla, AK (IYS)
Type of Flight Plan Filed: Company VFR
Destination: Anchorage, AK (MRI)
Type of Clearance: None
Departure Time:
Type of Airspace: Class D
Airport Information
Airport: MERRILL FIELD MRI
Runway Surface Type: Asphalt
Airport Elevation: 137 ft msl
Runway Surface Condition: Dry
Runway Used: 25 IFR
Approach: None
Runway Length/Width: 4000 ft / 100 ft
VFR Approach/Landing: Full stop; Straight-in
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 61.215831,-149.84194(est)
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