Aviat A1B N990HP accident near Guntersville, Alabama

May 15, 2020 · NTSB number ERA20CA187 · Final report

Probable cause

The pilot's failure to retract the amphibious airplane's landing gear wheels prior to a water landing, which resulted in a nose over.

NTSB analysis

The pilot of the amphibious float equipped airplane reported that while landing on the water, he experienced a very hard, violent landing with a nose down pitch attitude and the airplane nosed over. He further reported that, prior to the landing on the water, he had previously departed a land-based airport and while on final approach to the lake for landing, he was distracted by a boat in the area and did not verify that the landing gear was retracted for a water landing. The airplane sustained substantial damage to both wings and right-wing lift struts. The pilot also reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for ERA20CA187 for the full record.

Event

Date
May 15, 2020
Type
Accident
Place
Guntersville, Alabama
Highest injury
None
Weather
Visual (VMC)
Light
Day

Aviat A1B

N-number
N990HP
Category
Airplane
Year built
2000
Damage
Substantial
Operating rule
Part 91 (general aviation)
Purpose of flight
Personal

From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.