ATL00LA018

NTSB accident investigation · Cessna 208B · Adjuntas, PR · December 23, 1999

Accident · Serious injuriesLimited investigationFinal report
Date
December 23, 1999, 16:00 local (21:00 UTC)
Place
Adjuntas, PR
Injuries
1 serious, 1 minor
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N1315ACessna 208B
Weather
Visual (VMC) · Day
Status
Completed · report December 4, 2000
Report
Approved by Office Director
FAA report
19991223041859A
Case key
48374

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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Probable cause

The pilot continued flight into adverse weather conditions that included low ceiling and turbulence. Factors to the accident were trees.

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 encounter with weatherCruise
Weather condition - low ceilingCause
Flight into adverse weather - continuedPilot in commandCause
Weather condition - turbulenceCause
In flight collision with objectManeuvering
Object - tree(s)Factor

Analysis

While en route to the first schedule stop, the pilot heard a radio transmission that weather conditions in the vicinity of his next destination were 'bad.' Upon arriving, the pilot attempted to telephone Flight Service for a weather briefing and to file a flight plan. After efforts to contact Flight Service failed, the pilot elected to takeoff without a filing a flight plan. A few minutes into the flight, the pilot decided to return to the departure airport after the flight encountered deteriorating weather conditions that included heavy turbulence, and low ceilings. The airplane collided with trees as the pilot maneuvered the airplane. The post-accident examination of the airplane failed to disclose a mechanical malfunction or a component failure. The pilot did not report a mechanical problem with the airplane. A review of the en route flight charts disclosed that the terrain elevation at the departure point was approximately 24 feet. The terrain elevation at the approximate location of the accident site was 2,500 feet.

Factual narrative

On December 23, 1999, at 1600 atlantic standard time, a Cessna 208B, N1315A, collided with trees in a heavily wooded area near Adjuntas, Puerto Rico. The air taxi cargo flight was operated by M & N Aviation under the provisions of Title 14 CFR Part 135 with no flight plan filed. Visual weather conditions prevailed at the nearest weather reporting facility at the time of the accident. The airplane sustained substantial damage. The commercial pilot received minor injuries and his passenger received serious injuries. The flight departed Ponce, Puerto Rico, at 1532.

While en route to Ponce, the pilot heard a radio transmission that weather conditions in the vicinity of his next destination was "bad." Upon arriving in Ponce, the pilot attempted to telephone Flight Service for a weather briefing and to file a flight plan. After efforts to contact Flight Service failed, the pilot elected to takeoff without filing a flight plan. After a few minutes into the flight, the pilot decided to return to Ponce. Reportedly, the flight encountered deteriorating weather conditions that included heavy turbulence, and low ceilings. While attempting to maintain visual contact with the ground the pilot anticipated executing a left turn to avoid colliding with the high terrain. The airplane collided with trees as the pilot maneuvered the airplane.

The post-accident examination of the airplane failed to disclose a mechanical malfunction or a component failure. The pilot did not report a mechanical problem with the airplane. A review of the en route flight charts disclosed that the terrain elevation at the departure point was approximately 24 feet. The terrain elevation at the approximate location of the accident site was 2,500 feet.

Aircraft

Registration
N1315A
Reported as
Cessna 208B
Category
Airplane
Serial number
208-0655
Airframe hours
1,427
Engine
P&W PT6A-114A, 675 horsepower, turbo prop
Damage
Destroyed
Flight
Part 135
Operator
M&N Aviation
Registered owner
Ge Capital Corp Of P.R.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · December 2, 1999 · 1,343 hours before
Departed
PSE · Ponce, PR
Destination
BQN · Aguadzilla, PR

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
21
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,985 total · 550 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 8 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 66 °F
Altimeter
30.00 inHg
Observed at
PSE, 30 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.