ANC99LA005

NTSB accident investigation · Beech G-35 · Neah Bay, WA · October 4, 1998

Accident · FatalLimited investigationFinal report
Date
October 3, 1998, 20:00 local (Oct 4, 1998, 03:00 UTC)
Place
Neah Bay, WA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Unknown
Aircraft
N4479DBeech G-35
Weather
Night/dark
Status
Completed · report January 11, 2000
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19981003045939A
Case key
45238

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.

Undetermined. Missing Aircraft.

Analysis

The certificated private pilot departed a rural airport in Alaska on a VFR cross country flight along remote, coastal terrain, without filing a flight plan. Ten days later, the airplane was reported overdue when it did not arrive at a possible intermediate stop in the Seattle, Washington, area, or at the pilot's planned destination in Michigan. After the overdue report, Coast Guard personnel in Alaska began to gather data about the airplane, pilot, and possible routes. They were not aware that a wing mounted auxiliary fuel tank had been found the day after the airplane departed, in the Port Angeles, Washington, area. On the day the fuel tank was found, Coast Guard personnel from Port Angeles conducted a search for other debris, but found none. Since the pilot did not file a flight plan, Coast Guard and FAA personnel in the Seattle area did not have any reports of overdue airplanes. After the airplane was reported overdue, FAA personnel in Alaska recalled a report of the fuel tank being found in the Seattle area. The missing airplane report, and the fuel tank, were eventually linked together. Family members positively identified the fuel tank as part of the accident airplane. The pilot is presumed to have received fatal injuries. After an additional search, no other parts of the airplane have been located. Weather data in the Port Angeles area on the presumed day of the accident, included a wide area of rain showers.

Factual narrative

The factual narrative1,299 words

History of flight

On October 3, 1998, about 1300 Alaska daylight time (ADT), a wheel equipped Beech G-35 airplane, N4479D, departed the Haines Airport, Haines, Alaska, on a visual flight rules (VFR) cross-country flight to the Seattle, Washington, area. The flight was the first portion of a continuing flight to Fenton, Michigan. No flight plan was filed for the Title 14 CFR Part 91 personal flight. At an estimated time of 2000 Pacific daylight time (PDT), the airplane is presumed to have crashed into the ocean in the vicinity of Neah Bay, Washington, in the Strait of Juan de Fuca. The certificated private pilot, the sole occupant, has not been found, and is presumed to have received fatal injuries.

Review of recorded telephone weather briefings from the Federal Aviation Administration's (FAA), Automated Flight Service Station (AFSS), Juneau, Alaska, revealed the pilot telephoned the AFSS on October 2, 1998, about 2312. The pilot first inquired about weather conditions by asking the AFSS specialist how long the high pressure over the Haines area was expected to last. The AFSS specialist said the high pressure should last for another two days. The pilot then inquired about expected weather conditions for a route of flight from Haines, direct to Cut Bank, Montana, and then to Michigan. The flight service station specialist advised the pilot that the areas around Terrace, Smithers, and Prince George, British Columbia, Canada, were experiencing snow and rain showers. The AFSS specialist said the conditions were expected to persist for a couple of days.

The pilot then inquired about the weather conditions along the coast of Alaska, and Canada. The AFSS specialist advised that a route through Ketchikan, Alaska, Prince Rupert, and Port Hardy, Canada, was expected to have better weather conditions. The pilot then inquired about weather conditions over the Cascade Mountains. The specialist said Abbotsford, and Penticton, Canada, were nice. He said the main area of poor weather was above Prince George, but once past Williams Lake, Canada, conditions improved. He added that the coast was a better route. The pilot said he had friends in Seattle, and he could take a break there. The pilot added that his mind was made up, and planned to go through Seattle. He said he would call in the morning to file a flight plan.

Other than inquiring about the weather conditions, the pilot did not receive a formal weather briefing.

Family members reported the pilot had voiced tentative plans to stop in the Seattle area on his way to Fenton, where he was scheduled to arrive before October 10, 1998. A personal friend in Seattle reported the pilot had mentioned that he may stop in Seattle, but the friend had not received any communication from the pilot to confirm any plans.

Following the airplane's departure from Haines, on October 3, 1998, no further communication was received from the pilot.

A fuel attendant at the Petersburg, Alaska, airport, reported observing a V-tailed Beechcraft Bonanza land at the airport about 1400 on October 3, 1998. He reported the airplane, a white color with wing tip tanks, taxied to the southwest side of the airport ramp. One person exited the airplane. He did not pay any further attention to the airplane, and no record of a fuel purchase was found. The identity of this airplane was not established.

No evidence of the airplane's location was found until October 4, 1998, about 0730 PDT. At that time, an airplane fuel tank was discovered floating about 200 yards from Chito Beach, Clallam Bay, Washington, which is located about 8 miles east of Neah Bay. The operator of a local resort recovered the tank.

The route of accident flight from Haines to Neah Bay, the time en route, and the airplane's fuel consumption, all were estimated to establish a probable time of the accident.

Search and rescue information

The recovery of the fuel tank was reported to the Clallam County Sheriff's Office, Washington, the U.S. Coast Guard, Port Angeles, Washington, and Federal Aviation Administration (FAA) personnel in Seattle. Since no flight plan had been filed, the FAA was not aware of any overdue airplanes. FAA personnel asked the finder of the tank to transport it to Port Angeles, and leave it with Rite Brothers Aviation, at the Fairchild International Airport. FAA inspectors planned to retrieve the tank at their next visit to Port Angeles, near the end of the month.

The Coast Guard Station, Port Angeles, was notified of the fuel tank on October 4, 1998, at 1030 PDT. Search personnel did not have any report of an overdue airplane from the FAA, or from Canadian Air Traffic Control personnel. A helicopter search of the area around Clallam Bay did not reveal any airplane debris. After an aerial search, the Coast Guard initiated an Urgent Marine Information Broadcast (UMIB) at 1220 PDT to local area marine vessels, advising boaters to look for any wreckage debris.

When the pilot did not arrive in Fenton, the flight was reported overdue by family members on October 13, 1998, to the Alaska State Troopers. An alert notice (ALNOT) for the airplane was issued by the FAA in Alaska, on October 14, 1998, at 0155 ADT.

Following the overdue report, U.S. Coast Guard personnel in Juneau, Alaska, on October 14, 1998, began to coordinate a search for the airplane in Alaska, Canada, and the Port Angeles area. They confirmed the pilot inquired about weather conditions, and possible routes, from the Juneau AFSS. Investigation of the proposed route of flight provided by family members initiated the Coast Guard's coordination with FAA personnel in Alaska and Seattle. On October 14, 1998, at 1905 ADT, Juneau FSS personnel recalled a report of recovery of a fuel tank near Neah Bay on October 4, 1998. This information provided the link for Coast Guard personnel to connect the overdue airplane with the found fuel tank.

Following the linking of the overdue airplane and the found fuel tank, Coast Guard personnel from Port Angeles reopened their search of the Chito Beach area. An extensive aerial, and surface search, utilizing ocean drift data from the Canadian Coast Guard, failed to locate any additional wreckage debris.

Aircraft information

The airplane was equipped with external, wing tip mounted auxiliary fuel tanks. Each tank had a capacity of 20 gallons. They were installed on the airplane on May 14, 1998, in Fenton, Michigan. Coast Guard personnel obtained information that the airplane had a Supplemental Type Certificate (STC) to utilize automotive fuel.

Investigators from the National Transportation Safety Board office in Seattle, retrieved the fuel tank from Rite Brothers Aviation on October 15, 1998. The tank was dented along the underside and had a torn, separated portion of wing structure attached to the inboard end. Electrical wires were attached to a position light assembly. A fuel cap was still retained in the tank fuel spout. About one quart of water and amber colored fuel was found within the tank. Family members traveled to Seattle, and met with NTSB personnel. On the evening of October 15, 1998, family members positively identified the recovered fuel tank as a part of the accident airplane. They identified previous repairs made to the underside of the tank. The fuel tank was released to a representative of the owner.

No maintenance logbooks for the engine or airframe were located. A mechanic in Fenton, Michigan, reported he previously worked on the airplane. A work order, dated May 14, 1998, contained a record of the tip tank installation, and an annual inspection. At that time, the airplane's recording hour meter indicated 3,970.80 hours. The engine's time since a major overhaul was recorded as 1,046.95 hours.

Personnel information

The pilot held a private pilot certificate with an airplane single-engine land rating. It was issued on March 16, 1997. The most recent

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.

UndeterminedUnknown
Reason for occurrence undeterminedCause

Aircraft

Registration
N4479D
Reported as
Beech G-35
Category
Airplane
Serial number
D-4634
Airframe hours
3,971
Engine
Continental E-225-8, 225 horsepower, reciprocating
Damage
Destroyed
Fire
Unknown
Flight
Personal · Part 91
Registered owner
Martin R. Coughlin
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 14, 1998
Departed
HNS · Haines, AK
Destination
Seattle, WA

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
53
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
260 total

Weather

Conditions
Night/dark
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
7,000 ft broken
Temperature
50 °F, dew point 46 °F
Altimeter
29.00 inHg
Observed at
CLM, 40 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.