CEN11LA307

NTSB accident investigation · Cessna 320 · Lake Heron, NM · April 24, 2011

Accident · FatalLimited investigationFinal report
Date
April 24, 2011, 10:30 local (16:30 UTC)
Place
Lake Heron, NM
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N320AZCessna 320
Weather
Instrument (IMC) · Day
Status
Completed · report May 30, 2013
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20110424009159A
Case key
78983

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’s controlled flight into terrain while conducting a flight at low altitude in instrument meteorological conditions.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Personnel issuesPersonnel issues › Action/decision · PilotCessna 320F: 1 caseAll aircraft: 56 casesProbable cause
Ceiling/visibility/precipEnvironmental issues › Conditions/weather/phenomena · Not specifiedCessna 320F: 1 caseAll aircraft: 65 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The airplane was on a cross-country flight. A witness, who was on a lake, reported that he heard the sound of an airplane pass low over his head. He added that the engine sound went silent and that he saw a splash of water as the airplane impacted the lake. The airplane was not recovered from the lake; however, highly fragmented parts of the airplane were recovered. Numerous packages, reportedly illegal narcotics, surfaced from the wreckage and were seized by the authorities. At the time of the accident, rain and thunderstorms were reported in the area. The accident is consistent with controlled flight into terrain, while the pilot was operating at low altitude in reduced visibility conditions.

Factual narrative

On April 24, 2011, about 1030 mountain daylight time a Cessna 320F airplane, N320AZ, impacted Heron Lake, near Los Ojos, New Mexico, after departing from cruise flight. The pilot, sole occupant, received fatal injuries. The airplane was substantially damaged in the collision and the wreckage submerged in deep water. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Instrument meteorological conditions prevailed for the flight, which was not operating on a flight plan. The flight originated from Prescott, Arizona, about 0730 mountain daylight time. A witness who was on the water at the time, reported that he heard the engine sound of an airplane flying low overhead. He stated that the engine noise suddenly went silent and he saw a large splash of water. At the time of the accident, weather reported in the area was stormy with rain and thunderstorms. The airplane wreckage was not recovered from the water; an examination of the engines and airframe was not possible. However, pieces that were recovered indicated the airplane fragmented on impact. The airplane’s maintenance records were not available for this investigation. The severity of the water accident meant that the pilot’s identity was determined by DNA and a toxicology test was not performed. A review of records on file with the Federal Aviation Administration revealed the pilot held a private pilot certificate, with single and multi-engine land, airplane ratings. The pilot did not possess an instrument rating. Additionally, the records revealed that he held a third class medical certificate dated December 30, 2009. During the investigation, the pilot’s logbook was not recovered, and as a result his time in make and model, as well as a breakdown of pilot times were not determined. Numerous packages, reportedly illegal narcotics, surfaced from the wreckage and were seized by the authorities.

Aircraft

Registration
N320AZ
Reported as
Cessna 320 (F)
Category
Airplane
Serial number
320-0027
Engines
Continental IO-520 series, reciprocatingContinential IO-520 series, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Departed
Prescott, AZ

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
59
Injuries
Fatal
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 3, Without waivers/limitations

Weather

Conditions
Instrument (IMC) · Day
Wind
Calm
Visibility
0.5 statute miles
Lowest ceiling
1,000 ft overcast
Temperature
36 °F, dew point 34 °F
Observed at
KE33, 15 nm away

Docket · 4

The files NTSB released with the investigation on April 16, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 879 KB in all.

FAA reports on this event · 1

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