ANC03FA075

NTSB accident investigation · Cessna 206 · English Bay, AK · July 11, 2003

Accident · FatalField investigationFinal report
Date
July 11, 2003, 11:05 local (19:05 UTC)
Place
English Bay, AK
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N505SDCessna 206
Weather
Visual (VMC) · Day
Status
Completed · report March 30, 2004
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20030711037239A
Case key
57482

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 failure to maintain adequate airspeed during an aborted landing, resulting in an inadvertent stall and subsequent collision with water. Factors were the high velocity crosswind conditions, the pilot's inadequate compensation for the wind conditions, and his delay in aborting the landing.

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.

Loss of control - in flightLanding - aborted
Aborted landing - delayedPilot in commandFactor
Compensation for wind conditions - inadequatePilot in commandFactor
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in command
Weather condition - high windFactor
Weather condition - crosswindFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water

Analysis

The solo certificated commercial pilot of the Title 14, CFR 135, cargo flight was attempting to land the airplane on a 1,850 foot long by 50 foot wide gravel-covered airstrip. Several witnesses reported gusty east-southeast winds, ranging between 25 and 40 knots, blowing directly across the runway. They reported that as the airplane proceeded on its final approach to runway 19, which required a correction for a left crosswind, the airplane "floated down the runway" after passing over the runway threshold, and eventually touched down about mid-field. As it touched down, the airplane bounced twice, which was immediately followed by the sound of full engine power. As it began to climb, the airplane made a sharp right turn to the west, to avoid terrain at the end of the runway. As the westerly turn continued, the airplane climbed to about 150 feet, over the ocean waters to the south of the airport. The witnesses said that the nose of the airplane then pitched up, and the left wing suddenly dropped. The airplane subsequently descended, struck the surface of the ocean, and sank in 30 feet of water about 200 yards from shore. Examination of the airplane revealed no evidence of any preimpact mechanical anomalies. Pilots who regularly use the accident airport stated that they routinely encounter substantial downdrafts on final approach to runway 19 when the prevailing strong east-southeast winds are present. The pilots added that when the east-southeasterly winds are blowing, the approach requires a significant correction for a left crosswind. A pilot who had recently departed from the accident airport, talked with the accident pilot via radio about 45 minutes before the accident. The pilot told the accident pilot, in part: "Be careful. You've got the typical strong southeast winds blowing right across the runway."

Factual narrative

History of flight

On July 11, 2003, about 1105 Alaska daylight time, a wheel-equipped Cessna 206 airplane, N505SD, was destroyed when it impacted ocean waters following a loss of control during an aborted landing at the English Bay Airport, English Bay, Alaska. The airplane was operated by Smokey Bay Air, Inc., Homer, Alaska, as a visual flight rules (VFR) cross-country cargo flight under Title 14, CFR Part 135, when the accident occurred. The solo commercial pilot was fatally injured. Visual meteorological conditions prevailed, and a company VFR flight plan was filed. The flight originated at the Homer Airport, Homer, about 1015.

During telephone conversations with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on July 11, a number of English Bay residents reported that on the day of the accident, strong southeasterly to easterly winds prevailed. A number of witnesses reported gusty wind conditions, estimated to be between 25 and 35 knots, blowing directly across runway 19.

The accident was witnessed by several individuals located at various locations around the community of English Bay. The witnesses consistently reported that as the airplane proceeded on its final approach to runway 19, which required a correction for a left crosswind, the airplane "floated down the runway" after passing over the runway threshold. The witnesses said that the airplane eventually touched down about mid-field on the 1,850-foot long by 50-foot wide gravel-covered runway. The witnesses added that as it touched down, the airplane bounced twice, which was immediately followed by the sound of full engine power. As it began to climb, the airplane made a sharp right turn to the west to avoid terrain at the end of the runway. As the westerly turn continued, the airplane climbed to about 150 feet, over the ocean waters of Cook Inlet. The witnesses said that the nose of the airplane then pitched up, and the left wing suddenly dropped. The airplane subsequently descended, struck the surface of the ocean, and sank in 30 feet of water, about 200 yards from shore.

The witnesses consistently reported that the accident airplane's engine appeared to be producing full power prior to striking the water.

Responding search and rescue personnel from the Alaska State Trooper's Tactical Dive Unit (TDU), U.S. Coast Guard, and various residents of English Bay, conducted an extensive search for survivors. At approximately 1315, divers located the submerged airplane wreckage, and discovered the pilot's body inside, still restrained within the pilot's seat.

Crew information

The pilot held a commercial pilot certificate with airplane single-engine land, and single-engine sea ratings. He also held a flight instructor certificate with airplane single-engine, and instrument airplane ratings. The most recent second-class medical certificate was issued to the pilot on May 5, 2003, and contained the limitation that he must wear corrective lenses.

The pilot was hired by the company on July 1, 2002. On July 10, 2002, the pilot completed his initial Part 135 check ride.

According to the NTSB Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the operator, the pilot's total aeronautical experience consisted of about 3,203 hours, of which 1,185 were accrued in the accident airplane make and model. In the 90 and 30 days prior to the accident, the pilot had flown a total of 146 and 46 hours, respectively.

According to the operator, in the two days preceding the accident, the pilot accrued 10.7 hours of flight time.

Aircraft information

The airplane had accumulated a total time in service of 11,628.0 hours. The airplane's most recent 100 hour inspection was accomplished on June 17, 2003, 80.0 hours before the accident.

The engine had accrued a total time in service of 2,818.0 hours. The maintenance records note that a major overhaul was accomplished 1,641 hours before the accident.

Meteorological information

The closest official weather observation station is Homer, located about 26 miles northeast of the accident site. On July 11, 2003, at 1053, an Aviation Routine Weather Report (METAR) was reporting in part: Wind, variable at 5 knots; visibility, 10 statute miles; clouds, 1,100 feet overcast; temperature, 61 degrees F; dew point, 48 degrees F; altimeter, 29.93 inHg. The remarks section of the report noted that winds in the area of the Homer Spit were from 140 degrees at 15 knots, with peak gusts to 22 knots. The Homer Spit is a narrow peninsula of land that extends about 5 miles southward, into the ocean waters of Kachemak Bay.

Witnesses located at the accident site consistently reported strong southeasterly gusting winds. One witness, in a boat located about one-half mile from the accident site, reported that just before the accident took place, his boat encountered very strong east-southeasterly winds, with peak gusts from 35 to 40 knots.

Communications

During a telephone conversation with the NTSB IIC on July 14, a pilot, reported that he talked with the accident pilot via radio about 45 minutes before the accident. The pilot, who was flying another Smokey Bay Air Cessna 206, which had recently departed from the English Bay Airport, related that the accident pilot inquired as to the current weather conditions, specifically the wind conditions, at the English Bay Airport. The pilot of the other company airplane said that he told the accident pilot, in part: "Be careful. You've got the typical strong southeast winds blowing right across the runway."

Aerodrome and ground facilities

The English Bay Airstrip is equipped with a single, gravel-covered surface on a 010 and 190 degree magnetic orientation. The airstrip is 1,850 feet long by 50 feet wide. The airstrip elevation is sea level, adjacent to the ocean waters of Cook Inlet. The airstrip is surrounded by upsloping mountainous terrain to the north, east, and south. The village of English Bay is built on the northerly slopes, overlooking the airstrip. The waters of Cook Inlet surround the west side of the airstrip. English Bay is often frequented by southeasterly onshore storms with associated strong east-southeasterly winds. A significant number of the storms originate in the Gulf of Alaska, then move southwesterly towards the Cook Inlet.

During telephone conversations with the NTSB IIC, pilots who regularly fly into English Bay reported that while on approach for a landing on runway 19, while flying over the village of English Bay, flights routinely encounter substantial downdrafts when strong, east-southeast winds are present. The pilots added that when east-southeasterly winds are blowing, the approach to runway 19 requires a significant correction for a left crosswind.

The Federal Aviation Administration's Airport/Facility Directory, Alaska Supplement, airport remarks for the English Bay Airstrip, state, in part: "Airport remarks, Unattended. Runway not regularly maintained; visually inspect runway for conditions prior to use." "...Runway 19 approach restricted by village on hillside. Runway 01 approach restricted by abrupt mountain face .21 nautical miles off runway end."

Wreckage and impact information

The airplane's wreckage sank in 30 feet of water about 200 yards from shore. Responding members from the Alaska State Trooper's Tactical Dive Unit reported to the NTSB IIC that when the submerged wreckage was located, they noted that the engine assembly had been torn from the airplane's firewall, the left wing was severely damaged, and the entire empennage was separated from the fuselage at the forward vertical stabilizer attach point. They said that the airplane's empennage was only being held by the control cables. The airplane's right wing remained attached. The engine was eventually located wit

Aircraft

Registration
N505SD
Reported as
Cessna 206
Category
Airplane
Serial number
2060947
Airframe hours
11,628
Engine
Continental IO-520, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Smokey Bay Air, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 17, 2003 · 80 hours before
Departed
HOM · Homer, AK
Destination
KEB · English Bay, AK
Flight plan
Company VFR
Airport
KEB · English Bay, runway 19, 1,850 × 50 ft, gravel

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
49
Injuries
Fatal
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
July 10, 2002
Seat
Left
Toxicology
Performed
Flight hours
3,203 total · 1,185 in this make and model · 146 in the last 90 days · 46 in the last 30 days · 11 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 20 knots, gusting 40
Visibility
10 statute miles
Lowest ceiling
8,000 ft overcast
Temperature
59 °F, dew point 50 °F
Altimeter
29.94 inHg

FAA reports on this event · 1

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