MIA08FA115

NTSB accident investigation · Cessna T206H · Cedar Key, FL · June 7, 2008

Accident · FatalField investigationFinal report
Date
June 7, 2008, 00:39 local (04:39 UTC)
Place
Cedar Key, FL
Injuries
3 fatal
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N206GGCessna T206H
Defining event
Approach-VFR pattern downwind: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Night/dark
Status
Completed · report May 28, 2010
Report
Approved by Office Director
Parties
McCauley Propeller System, Cessna Aircraft Company, FAA/FSDO, Lycoming
FAA report
20080607854919A
Case key
68186

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

On this page

Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The pilot’s failure to maintain clearance from the water during a dark night approach to a coastal airport.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.

Analysis

The accident occurred less than 4 minutes after takeoff in dark night conditions and over open water, as the airplane was maneuvering near the airport. The flight departed about 15 minutes after midnight and the moon was below the horizon. Radar captured the airplane on the upwind, crosswind, and downwind legs for runway 5, reaching an altitude of 900 feet mean sea level (msl). The airplane’s last radar contact indicated a turn to base leg at 600 feet msl, while the airplane was flying toward the ocean. Witnesses at the departure airport observed the airplane on the downwind leg and then lost sight of it as the airplane turned southwest. Shortly after, a bright flash of light was observed in the water just west from their location. Wreckage examination concluded that the airplane was in a 30- to 40-degree left bank and a 5- to 10-degree nose-below-horizon attitude at the time of water impact. There was no evidence of preimpact failure or malfunction with the airplane and its systems.

Factual narrative

The factual narrative1,258 words

History of flight

On June 7, 2008, about 0039 eastern daylight time, a Cessna T206H, N206GG, impacted ocean waters shortly after takeoff from the George T Lewis Airport (CDK), Cedar Key, Florida. The pilot and two passengers were killed; the airplane incurred substantial damage. The flight was operated by a private individual under the provisions of Title 14 Code of Federal Regulations Part 91, as a personal flight. Visual meteorological conditions prevailed and a flight plan was not filed for the local flight.

Witnesses stated to a Cedar Key police representative that the owner of the airplane hired the pilot to fly him and two couples to Cedar Key for dinner. When they arrived, they met with two women, who where at the airport watching the sunset. The two women gave the group of six a ride from the airport to a local restaurant area in town. Later on that evening, the two women gave the group a ride back to the airport. Once at the airport, one of the group members noticed that their camera was left back at the restaurant. One of the women offered to take them back to retrieve the camera. The owner of the airplane offered the other woman a ride in the airplane to see the city from the air at night. The pilot, owner and the woman boarded the airplane for the short flight as the others went back for the camera. One of the witnesses stated he observed the airplane takeoff in a northerly direction, then turn toward the west. The witnesses lost site of the airplane when it turned southwest. Shortly after that, a bright flash of light was observed in the water just west of North Key Island. At that time, the witnesses did not know what the flash of light was. They contacted the authorities when ample time had past and the airplane did not return.

The United States Coast Guard, the Florida Fish and Wildlife Conservation Commission, and several surrounding county law enforcement agencies began the search and rescue operations. The Citrus County Sheriff's dive team located a possible wreckage site with the use of side scan sonar equipment. The operations to locate the wreckage were stopped due to safety concerns. During that time, the back seat passenger onboard was located near the shore of North Key Island.

The Levy County Sheriff's dive team resumed the search operations later that morning. The wreckage was located near where the sonar indicated, about 2.5 miles southwest from CDK. The forward cockpit area, with engine and propeller attached, was partially separated from the fuselage. The airplane's wings separated at the fuselage attachment area. The roof section spanning across the wings was ripped open and remained with the left wing. The empennage section was partially separated and buckled under the fuselage. All the sections remained attached to the fuselage by their respective flight control cables. The pilot was located in the left seat and the female passenger was located in the right seat, both had their respective seat belt and shoulder harnesses secured inside the fuselage.

The Federal Aviation Administration (FAA) Standard Terminal Automation Replacement System (STAR) Radar for the area captured the accident flight shortly after departure from runway 5 at CDK. At 00:36:43, the airplane was at 500 feet means sea level (msl) in a climbing left turn. At 00:37:31, the airplane was at 900 feet msl, on a downwind leg for runway 5. At 00:38:31, the last radar capture, the airplane was 600 feet msl and turning on to base leg.

Personnel information

The pilot, age 48, held a commercial pilot certificate, with ratings for airplane single-engine land, airplane multiengine land, and instrument airplane. He also held a flight instructor certificate, with ratings for airplane single-engine land, airplane multiengine land, and instrument airplane. He was issued a second-class medical certificate on May 21, 2008, with no limitations. A review of the pilot’s flight logbooks revealed that he had 1,370 total flight hours, 12.3 hours in the accident airplane, and a total of 225 hours of night time flying. He also had 157 hours of actual instrument flight time.

Aircraft information

The accident airplane, a Cessna T206H, serial number T20608495, was manufactured in 2004 as a six-seat, high-wing airplane, with fixed tricycle landing gear. The airplane was equipped with a Garmin G1000 avionics system, which displayed all flight, engine, and sensor data on two digital screens. Backup vacuum and pitot-static instruments were located below the displays in the form of an attitude indicator, airspeed indicator, and altimeter. The airplane was powered by a turbocharged Lycoming TIO-540-AJ1A, 310-horsepower engine.

Review of the airplane’s maintenance logbooks indicated that the last annual inspection was performed on February 13, 2008, at a total time of 719.5 hours. The last maintenance performed was on May 9, 2008, at a total time of 764.50 hours.

Meteorological information

The nearest official weather reporting station was Cross City Airport (CTY), Cross City, Florida, located 30 miles north of the accident site. The 0053 surface observation was: winds light and variable; visibility 10 statute miles; sky condition clear; temperature 16 degrees Celsius; dew point 12 degrees Celsius; altimeter 30.00 inches of mercury.

The United States Naval Observatory Astronomical Applications Department recorded the phase of the Moon, on 7 June, 2008, for Cedar Key, Levy County, Florida (longitude W83.0, latitude N29.1), as waxing crescent with 20 percent of the Moon's visible disk illuminated. The Moon’s position was recorded below the horizon during the time of the accident.

Wreckage and impact information

A postrecovery wreckage examination was conducted by the airplane’s airframe and engine manufacturer representatives, with NTSB oversight.

All airframe components and flight control surfaces were present. The airplane’s wings had separated from the fuselage at the wing attachment points, and the empennage had separated forward of the horizontal stabilizer in a downward direction. The forward section of the fuselage was bent downward. The left outboard wing sustained leading edge compression damage, and was separated approximately mid-span. The right wing strut separated from the fuselage and remained attached to the right wing. The vertical stabilizer was bent to the left, and the right horizontal stabilizer was bent downward. Fire damage was observed on the left and right wing roots, left inboard flap, center wing section and the top of the fuselage near the cargo door. All fire damage was consistent with a postcrash fuel fire on the surface of the water.

Flight control continuity was established from all control surfaces to the flight controls in the cockpit. Examination of cable separations revealed evidence of tension overload or cutting by wreckage recovery personnel. The flap actuator was found in the flaps retracted position. The elevator trim was found in an approximately 20 degrees tab up position. No evidence of preimpact failure or malfunction was observed with the airplane’s flight controls that would have prevented normal operation.

The engine remained attached to the firewall, which had separated from the fuselage. The engine throttle, fuel mixture, and propeller pitch control continuity was established to their respective components. The control levers were found in the full forward position. Engine drivetrain continuity and cylinder compression was established. The vacuum pump drive coupling was intact and the rotor vanes were undamaged. Damage observed to the engine and accessories were consistent with salt water immersion and impact forces. No evidence of preimpact failure or malfunction was observed with the engine that would have prevented normal operation.

The propeller remained attached to the engine. It was removed and examined by the propeller manufacturer, with FAA oversigh

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.

Aircraft

Registration
N206GG
Reported as
Cessna T206H
Category
Airplane
Serial number
T20608495
Airframe hours
840
Engine
Lycoming TIO-540, 310 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 13, 2008 · 120 hours before
Departed
CDK · Cedar Key, FL
Destination
CDK
Airport
CDK · George T Lewis

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
48
Injuries
Fatal
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
August 24, 2007
Seat
Left
Toxicology
Performed
Flight hours
1,370 total · 12 in this make and model · 1,316 as pilot in command

Weather

Conditions
Visual (VMC) · Night/dark
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
CTY, 30 nm away

Docket · 21

The files NTSB released with the investigation on February 26, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 13.8 MB in all.

Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1Item 1 · .PDF · 9 KBReports from Local Agencies: Cedar Key Police Report.Item 2 · .PDF · 460 KBOther Pertinent Forms and Reports:Radar Information.Item 3 · .PDF · 157 KBMiscellaneous: Excerpts From the Airplane's Maintenance Records.Item 4 · .PDF · 840 KBReports from Parties to the Investigation: Excerpts From Cessna Aircraft Company Final Report.Item 5 · .PDF · 259 KBReports from Parties to the Investigation: Excerpt from Lycoming Final Report.Item 6 · .PDF · 254 KBReports from Parties to the Investigation: Excerpt From McCauley Propeller Systems Final Report.Item 7 · .PDF · 114 KBMiscellaneous: Moon Position on June 6 & 7, 2008, at Cedar Key, Fl.Item 8 · .PDF · 297 KBMiscellaneous: Excerpts From the Pilot's Flight Log Records.Item 9 · .PDF · 8.5 MBToxicological Report: On PilotItem 10 · .PDF · 63 KBToxicological Report: On Front Seat PassengerItem 11 · .PDF · 60 KBMiscellaneous: NTSB Interpretation of Blood Alcohol levels found in Transportation Operators.Item 12 · .PDF · 43 KBStatement of Party Representatives to NTSB InvestigationItem 13 · .PDF · 70 KBRelease of Aircraft Wreckage, NTSB Form 6120.15Item 14 · .PDF · 307 KBPhoto - View From Airport Looking West, Over The Gulf of MexicoItem 15 · .PDF · 134 KBPhoto - View of Wreckage in The Water (Photo Provided by Quality Aircraft Salvage).Item 16 · .PDF · 462 KBPhoto - View of Engine And Propeller (Photo Provided by Lycoming).Item 17 · .PDF · 456 KBPhoto - Right Side View of Wreckage (Photo Provided by Lycoming.)Item 18 · .PDF · 493 KBPhoto - Left Side View of Wreckage (Photo Provided by Lycoming).Item 19 · .PDF · 474 KBPhoto - View of The FirewallItem 20 · .PDF · 192 KBPhoto - View of The Cabin Floor and Dash AreaItem 21 · .PDF · 160 KB

FAA reports on this event · 1

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