No fatalities

Unauthorized Flight Ends in Ocean Crash for Student Pilot (N70CZ)

Key West, United States of AmericaTakeoff (climb)

On January 17, 1985, a Piper PA-31-350 Navajo Chieftain (registration N70CZ) operated by Southern Express Airways was involved in an aviation accident near Key West, United States of America during takeoff. No fatalities were reported. Investigators recorded the probable cause as: Loss of control during takeoff initial climb due to improper use of flight controls, impaired visual/aural perception, improper procedures/directives, overconfidence, poor judgment, failure to maintain altitude, emotional reaction, failure to attain proper… This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary report: the U.S. National Transportation Safety Board (NTSB) historical archiveUpdated 2026-07-04Data APIEditorial standards

A student pilot took an unattended aircraft without permission, conducted a solo flight around 0200 hours, and crashed into the ocean 300 yards off Key West, Florida. The pilot suffered minor injuries.

Incident Overview

A student pilot, who worked as an aircraft refueler, took an unattended parked aircraft without authorization and initiated a solo flight at approximately 0200 hours. The flight ended shortly after takeoff when the aircraft crashed into the ocean about 300 yards offshore from Key West, Florida. The aircraft sank in 10 feet of water, and the pilot sustained minor injuries.

Sequence of Events

The unauthorized flight began with the student pilot taking the parked aircraft without permission. The takeoff and initial climb were executed under dark night conditions. Almost immediately after becoming airborne, the aircraft lost control and descended uncontrollably, colliding with the water.

Official Findings

The investigation identified the primary occurrence as a loss of control during the takeoff initial climb phase. The probable cause was attributed to the pilot's improper use of flight controls, impaired visual and aural perception, failure to follow proper procedures and directives, overconfidence in personal ability, poor judgment, failure to maintain altitude, emotional reaction, failure to attain proper climb rate, lack of total experience in the type of operation, failure to maintain clearance, and spatial disorientation. The secondary occurrence was an in-flight collision with terrain/water during an uncontrolled descent.

Pilot Status

The pilot was slightly injured in the crash. No other injuries were reported. The aircraft was substantially damaged and sank in shallow water.

Frequently asked questions

What happened in the 17 Jan 1985 Piper PA-31-350 Navajo Chieftain accident near Key West, United States of America?

A student pilot took an unattended aircraft without permission, conducted a solo flight around 0200 hours, and crashed into the ocean 300 yards off Key West, Florida. The pilot suffered minor injuries.

Were there any fatalities in the 17 Jan 1985 Piper PA-31-350 Navajo Chieftain accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 17 Jan 1985 involved a Piper PA-31-350 Navajo Chieftain, registration N70CZ, operated by Southern Express Airways, at Key West, United States of America.

What was the probable cause of the accident?

Loss of control during takeoff initial climb due to improper use of flight controls, impaired visual/aural perception, improper procedures/directives, overconfidence, poor judgment, failure to maintain altitude, emotional reaction, failure to attain proper climb rate, lack of total experience, failure to maintain…