Grumman G-21A N21A accident near Marathon, Florida

Jan 29, 2008 · NTSB number MIA08LA048 · Final report

Probable cause

The pilot’s failure to maintain control of the airplane during a water landing.

NTSB analysis

After departing an airport and completing the checklist, the pilot proceeded to a water-work area. The pilot stated that other than that, he had no further recollection of the flight. The passenger stated that the pilot was practicing takeoffs and landings, and that during a water landing, the left wing contacted the water, and the airplane water looped. Examination of the airplane by the FAA revealed no mechanical malfunctions or failures of the airplane or engine, and none were reported by the pilot or passenger.

Text from the NTSB. Open the NTSB docket for MIA08LA048 for the full record.

Event

Date
Jan 29, 2008
Type
Accident
Place
Marathon, Florida
Nearest airport
The Florida Keys Marathon Arpt (MTH)
Highest injury
Serious
Serious injuries
2
Weather
Visual (VMC)
Light
Day

Grumman G-21A

N-number
N21A
Category
Airplane
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.