SEA98FA089

NTSB accident investigation · Mooney M20A · Canyon Creek, MT · June 7, 1998

Accident · FatalField investigationFinal report
Date
June 7, 1998, 09:45 local (15:45 UTC)
Place
Canyon Creek, MT
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N1048BMooney M20A
Weather
Instrument (IMC) · Day
Status
Completed · report January 10, 2000
Report
Approved by Office Director
FAA report
19980607012399A
Case key
42716

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 design stress limits of the aircraft was exceeded. The pilot's inadequate preflight planning/preparation, lack of an instrument rating, poor weather evaluation and low ceilings and mountain obscuration were factors.

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.

Airframe/component/system failure/malfunctionManeuvering
Weather condition - low ceilingFactor
Design stress limits of aircraft - exceededPilot in commandCause
Lack of total experiencePilot in commandFactor
Weather condition - obscurationFactor
Preflight planning/preparation - inadequatePilot in commandFactor
Weather evaluation - poorPilot in commandFactor

Analysis

Prior to takeoff, the pilot received a weather briefing for his proposed route of flight. The specialist reported low ceilings and mountain obscuration along the route, and suggested a route of flight away from the mountains and poor weather conditions. The pilot filed a visual flight rules flight plan for his original route. Approaching his destination, the pilot contacted air traffic and advised that he needed assistance in locating an airport that was clear of the weather, as he was on top of an overcast layer and could not see the ground. The controller informed the pilot of the multiple cloud layers in the area and to remain in visual conditions. With the aid of other pilots in the area who were reporting actual weather conditions, the controller was maneuvering the aircraft to an area where he might be able to get below the overcast layer. While en route, the pilot notified the controller that he saw a hole and was going to try and punch through it. Shortly after this time, the aircraft dropped off radar contact and there was no further communication from the pilot. Evidence found at the accident site indicated that the aircraft broke-up in flight. The low-time, non-instrument rated pilot had just purchased the airplane and had not received the complex aircraft sign-off for solo operation.

Factual narrative

History of flight

On June 7, 1998, approximately 0945 Mountain daylight time, a Mooney M20A, N1048B, registered to and operated by the pilot as a 14 CFR Part 91 personal flight was destroyed when it broke up while in flight over Canyon Creek, Montana. Instrument meteorological conditions prevailed at the time and a visual flight rules flight plan was filed. The private pilot, the sole occupant, was fatally injured. The flight had originated from Lewiston, Idaho, about three hours and forty-five minutes before the accident, and was en route to Great Falls, Montana.

The pilot had just purchased the aircraft and was in the process of flying the aircraft back to his home in Harrisburg, Pennsylvania.

Radar data provided by the Salt Lake City Air Route Traffic Control Center, Salt Lake City, Utah, indicates that the aircraft was flying in a northerly direction between 13,200 feet and 14,500 feet, ten minutes before the accident. The last two radar targets at 14,300 feet and 13,700 feet indicate that the flight path deviated to the east and then southeast before the radar target was lost. The wreckage was located south of the last radar target at an elevation of approximately 5,100 feet.

Personnel information

At the time of the accident, the pilot held a private pilot certificate for single-engine land airplanes. The certificate was issued on July 7, 1997. The pilot's flight logbook indicates that a total flight time of 153 hours had been accumulated, with 130 hours as pilot-in-command. The logbook indicates that a majority of the flight time was in a Cessna 152 (85 hours), and in a Piper PA28-151 (42 hours).

On May 22, 1998, the logbook indicates the pilot's first flight in the Mooney M20A. At this time, the aircraft was owned by another individual who was in the process of selling the aircraft to the pilot. Two other flights were flown with the previous owner on May 23, 1998, and May 24, 1998. The three flights totaled 7.2 hours. The pilot logged these three flights as "dual received" and "Pilot-in Command." During an interview with the previous owner, it was learned that he is not a flight instructor. The owner also stated that the pilot was not signed-off for complex aircraft. The owner stated that he had recommended a flight instructor at the local airport, who could give the pilot the flight instruction needed for the complex aircraft sign off.

On June 6, 1998, the logbook indicates a one-hour "dual received" flight in the local area of Kennewick, Washington. The entry was signed by a flight instructor. During an interview with the flight instructor, he reported that, although the pilot was competent, he did not endorse the pilot's logbook for solo operation in a complex aircraft as required by 14 CFR Part 61.31. The instructor recommended to the pilot at least ten hours of additional instruction.

Meteorological information

At 0423, the pilot contacted Boise, Idaho, Flight Service Station for the weather, and informed the specialist that he was in Lewiston, Idaho, and planning an east northeast route to Great Falls, Montana or Billings, Montana, that morning. The specialist asked the pilot if Billings was his destination, and the pilot stated that he did not have a specific location, only that he had the next seven days to head east to Pennsylvania and preferred a Great Plains route. The specialist informed the pilot that western Montana, and eastern Idaho were forecasting some areas of mountain obscuration with low overcast ceilings as low as 2,000 feet. The specialist suggested that heading south over Baker, Oregon, then southeast into Boise and then east across southern Idaho, into Rock Springs, Wyoming, and Rawlins, Wyoming, then to Rapid City, South Dakota, would be a better route.

The pilot continued to question the specialist on the route of flight to the south. The specialist stated that since it was apparent that the pilot was not familiar with the area, he continued to suggest the route that would keep the pilot away from the mountains. The specialist continued to inform the pilot of the mountain obscurement. The pilot indicated that Rock Springs, would be his first destination and the specialist provided the weather for this route of flight. The pilot again questioned the specialist on the route of flight and the specialist continued to suggest the southerly route away from the mountain obscurement in Idaho and Montana. The pilot concluded the conversion by informing the specialist that he would probably make Cheyenne, Wyoming, his final destination for the day, and that he was going to plan his route of flight and call back with a flight plan.

At 0956, Helena Airport was reporting the weather as the wind calm with light rain/mist. The visibility was six miles. The sky conditions were 2,300 feet broken, 2,800 feet broken, and overcast at 4,900 feet.

At 0856, Great Falls Airport was reporting the weather as the wind from 60 degrees at 10 knots. The visibility was 10 miles with light rain/mist. The sky conditions were scattered at 3,500 feet, broken at 4,800 feet and 6,000 feet.

At 0956, Great Falls Airport was reporting the weather as the wind from 20 degrees at eight knots. The visibility was 10 miles. The sky conditions were broken at 6,500 feet and overcast at 8,000 feet.

Communications

At 0649, the pilot contacted Boise Flight Service Station in flight and stated that he had just departed from Lewiston, Idaho, en route to Great Falls, Montana, via the Missoula, Montana, VOR, and to open his flight plan. The controller informed the pilot that his flight plan was activated and asked the pilot if he had the airmet for mountain obscuration along the route of flight. An unintelligible response from the pilot was transmitted. The controller repeated that last transmission with no response from the pilot.

At 0925 mountain daylight time, the pilot contacted Salt Lake City, Utah, Air Route Traffic Control Center, and informed the controller that he was about 20 miles west of Helena, Montana, at 11,500 feet, and dodging clouds to remain in visual conditions. The pilot requested radar services to a clear airport for landing, in which he stated "hopefully Great Falls." The controller asked the pilot to squawk a transponder code and radar indicated that the aircraft was 17 miles southwest of Helena. The controller asked the pilot if he was instrument capable. The pilot responded that he was a VFR pilot. The controller informed the pilot that there was a lot of precipitation running north and south just west of Great Falls, down to the Helena area. The controller instructed the pilot to maintain VFR conditions.

At 0932, the controller informed the pilot that the weather conditions for the area were not good. Great Falls was probably the best which was showing few clouds at 5,500 feet, and scattered at 10,000 feet. The controller then communicated with other aircraft in the area for actual conditions. The other aircraft were reporting layers of clouds. One aircraft who departed out of Great Falls, indicated that there was some breaks in the cloud layer at the airport. The controller informed the pilot that a heading to the west and then approaching Great Falls from the west might be a better option. The pilot turned and headed in that direction. The controller asked the pilot if he could see the ground, and the pilot responded that he could not.

At 0942, the controller informed the pilot that another aircraft reported no build-ups about 50 miles northwest of his position, and this pilot thought that the pilot could get into Great Falls by that route. The controller informed the pilot that his current heading was okay and to remain clear of the clouds.

At 0945, the pilot informed the controller that he was looking at a hole and was going to try and "punch through." The controller responded that he saw that the flight had altered

Aircraft

Registration
N1048B
Reported as
Mooney M20A
Category
Airplane
Serial number
1275
Airframe hours
2,992
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Thomas A. Berwager
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 14, 1998 · 10 hours before
Departed
LWS · Lewiston, ID
Destination
GTF · Great Falls, MT
Flight plan
VFR

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
46
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
153 total · 1 in this make and model · 130 as pilot in command · 33 in the last 90 days · 13 in the last 30 days

Weather

Conditions
Instrument (IMC) · Day
Wind
Calm
Visibility
6 statute miles
Lowest ceiling
2,300 ft broken
Temperature
48 °F, dew point 45 °F
Altimeter
29.00 inHg
Observed at
HLN, 16 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.