1 fatality

Aircraft Exceeds Maximum Gross Weight, Strikes Tree and Crashes (N778L)

San Juan-Isla Grande (Fernando Luis Ribas Dominicci), Puerto RicoTakeoff (climb)

On October 29, 1986, a De Havilland DHC-3 Otter (registration N778L) operated by Jamie Muñoz was involved in an aviation accident near San Juan-Isla Grande (Fernando Luis Ribas Dominicci), Puerto Rico during takeoff. One person was killed. Investigators recorded the probable cause as: Occurrence #1: in flight collision with object Phase of operation: takeoff - initial climb Findings 1. (c) preflight planning/preparation - inadequate - pilot in command 2. (c) aircraft weight and balance - exceeded - pilot in command 3. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards

An aircraft exceeding its maximum gross weight by about 1,928 lbs struck a tall palm tree after takeoff, then crashed between two roads near an intersection. The passenger was injured and the pilot was killed.

Accident Summary

An aircraft on takeoff used most of the runway, reached an altitude of approximately 60 feet, then pulled up to clear an embankment. During the initial climb, the aircraft struck a tall palm tree and subsequently crashed between two roads near an intersection where the roads merged.

Investigation Findings

After the accident, the cargo was removed from the aircraft and weighed. Computations showed that the maximum allowable gross weight of the aircraft was exceeded by approximately 1,928 lbs. No preimpact part failure or malfunction was evident. The passenger sustained injuries and the pilot was killed.

Probable Cause (Official Findings)

Occurrence #1: In-flight collision with object during takeoff initial climb. Findings: (1) Inadequate preflight planning/preparation by the pilot-in-command; (2) Aircraft weight and balance exceeded by the pilot-in-command; (3) The object was tree(s); (4) Clearance was not attained.

Occurrence #2: In-flight collision with terrain/water during uncontrolled descent.