No fatalities

Aircraft Collides with Trees on Final Approach, Eight Injured (N68DD)

Nantucket, United States of AmericaLanding (descent or approach)

On April 6, 1985, a Piper PA-31-310 Navajo (registration N68DD) operated by Will's Air was involved in an aviation accident near Nantucket, United States of America during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: Occurrence #1: in flight encounter with weather - Phase of operation: approach - iaf to faf/outer marker (ifr). Occurrence #2: in flight collision with terrain/water - Phase of operation: approach - faf/outer marker to threshold (ifr). Findings: 1. 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

During final approach to runway 24 in low visibility, an aircraft collided with trees. All eight occupants were injured, three seriously. No pre-impact failure was found.

Accident Overview

An aircraft collided with trees during the final approach to runway 24. The aircraft was destroyed, and all eight occupants sustained injuries, three of which were serious. Investigators found no evidence of pre-impact failure or malfunction of the aircraft.

Weather Conditions

The reported weather at the crash site included an indefinite ceiling of 100 feet with sky obscured. Runway visual range (RVR) was 2,400 feet. According to the report, the aircraft should have encountered a decreasing headwind and probably moderate turbulence on the final descent.

Approach and Collision

The accident occurred during the approach phase, specifically during the segment from the initial approach fix to the final approach fix (IAF to FAF) and then from the FAF to the threshold. The aircraft entered instrument meteorological conditions with low visibility and low cloud ceiling.

Injuries and Damage

The impact with trees destroyed the aircraft. All eight occupants were injured, with three classified as serious. No further details on the nature of injuries were provided.

Investigation Findings

The official investigation identified multiple findings related to the pilot and the weather encounter. The pilot was found to have descended below the minimum descent altitude, exhibited anxiety or apprehension, failed to correct the descent, and did not perform a missed approach. The probable cause includes two occurrences: an in-flight encounter with weather, and an in-flight collision with terrain/water.

Probable Cause (Official Findings)

Occurrence #1: In-flight encounter with weather during approach (IAF to FAF/outer marker under IFR). Occurrence #2: In-flight collision with terrain/water during approach (FAF/outer marker to threshold under IFR). Findings: 1. (c) Minimum descent altitude – below – pilot in command. 2. (f) Anxiety/apprehension – pilot in command. 3. (c) Descent – not corrected – pilot in command. 4. (f) Missed approach – not performed – pilot in command.

Frequently asked questions

What happened in the 6 Apr 1985 Piper PA-31-310 Navajo accident near Nantucket, United States of America?

During final approach to runway 24 in low visibility, an aircraft collided with trees. All eight occupants were injured, three seriously. No pre-impact failure was found.

Were there any fatalities in the 6 Apr 1985 Piper PA-31-310 Navajo accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 6 Apr 1985 involved a Piper PA-31-310 Navajo, registration N68DD, operated by Will's Air, at Nantucket, United States of America.

What was the probable cause of the accident?

Occurrence #1: in flight encounter with weather - Phase of operation: approach - iaf to faf/outer marker (ifr). Occurrence #2: in flight collision with terrain/water - Phase of operation: approach - faf/outer marker to threshold (ifr). Findings: 1. (c) minimum descent altitude - below - pilot in command. 2. (f)…