MIA87FA015

NTSB accident investigation · de Havilland DHC-3 · San Juan, PR · October 29, 1986

Accident · FatalField investigationFinal report
Date
October 29, 1986, 13:10 local (17:10 UTC)
Place
San Juan, PR
Injuries
1 fatal, 1 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N778Lde Havilland DHC-3
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19861029052159A
Case key
31730

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with objectTakeoff - initial climb
Preflight planning/preparation - inadequatePilot in commandCause
Aircraft weight and balance - exceededPilot in commandCause
Object - tree(s)Factor
Clearance - not attained
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Witnesses stated that the acft used most of the rwy to takeoff, reached an aprx altitude of 60 feet, then pulled up to clear an embankment. However, the acft struck a tall palm tree & crashed between 2 roads, near an intersection, where the roads merged. The cargo was removed from the acft & weighed. Computations showed that the maximum allowable gross weight of the acft was exceeded by approximately 1928 lbs. No preimpact part failure or malfunction was evident.

Aircraft

Registration
N778L
Reported as
de Havilland DHC-3
Category
Airplane
Serial number
S5-3245
Airframe hours
6,290
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Indep-Line Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 22, 1986
Airport
SIG · Isla Grande, runway 9, 5,317 × 100 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
37
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
8,000 total · 100 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 5 knots
Visibility
15 statute miles
Lowest ceiling
8,000 ft broken
Temperature
82 °F, dew point 77 °F
Altimeter
30.00 inHg
Observed at
SJU, 5 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.