ANC93FA114

NTSB accident investigation · Piper PA-16 · Fairbanks, AK · July 9, 1993

Accident · FatalField investigationFinal report
Date
July 8, 1993, 21:45 local (Jul 9, 1993, 05:45 UTC)
Place
Fairbanks, AK
Injuries
4 fatal
Phase of flight
Enroute
Aircraft
N5960HPiper PA-16N87568Piper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report January 18, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
2306

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

Failure of the pilots of both airplanes to see and avoid each other, and the alcohol impairment of the pilot-in-command of the PA-16, N5960H. A factor which contributed to the accident was the sunglare.

Failure of the pilots of both airplanes to see and avoid each other, and the alcohol impairment of the pilot-in-command of the PA-16, N5960H. A factor which contributed to the accident was the sunglare.

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.

Midair collisionCruise
Visual lookout - inadequatePilot in commandCause
Impairment(alcohol)Pilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
Light condition - sunglareFactor
In flight collision with terrain/waterDescent - uncontrolled
Midair collisionCruise
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
Impairment(alcohol)Pilot of other aircraftCause
Light condition - sunglareFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The PA-16, N5960H, had contacted the tower 5 mi east for landing, and was cleared to enter a right base. Shortly thereafter, the airplane called & said he was being pushed up and collided with another airplane. Impact marks showed that the left wing of the PA-18, N87568, had collided with the right float of the PA-16. Both airplanes were on a westerly heading. At the time of the collision, the sun was 9.5 deg above the horizon and on a 303.7 deg true azimuth. The left wing struts of both airplanes failed, and both airplanes descended out of control. The toxicological sample from the pilot-in-command of the the PA-16, N5960H, showed a blood alcohol level of 0.060 gm/dl, and a urine alcohol level of 0.046 gm/dl.

The PA-16, N5960H, had contacted the tower 5 mi east for landing, and was cleared to enter a right base. Shortly thereafter, the airplane called & said he was being pushed up and collided with another airplane. Impact marks showed that the left wing of the PA-18, N87568, had collided with the right float of the PA-16. Both airplanes were on a westerly heading. At the time of the collision, the sun was 9.5 deg above the horizon and on a 303.7 deg true azimuth. The left wing struts of both airplanes failed, and both airplanes descended out of control. The toxicological sample from the pilot-in-command of the the PA-16, N5960H, showed a blood alcohol level of 0.060 gm/dl, and a urine alcohol level of 0.046 gm/dl.

Factual narrative

History of flight

On July 8, 1993, at 2145 Alaska daylight time, a float equipped Piper PA-16 airplane, N5960H, registered to Jonathan L. Finkel of Fairbanks, Alaska, and operated by the Pilot in Command, collided with another airplane, N87568, a Piper PA 18 airplane, while in cruise flight and preparing to enter a right base for the Float Pond at the Fairbanks International Airport, Fairbanks, Alaska. The accident occurred 10 miles east of the airport on the 100 degree radial of the Fairbanks VOR. The personal flight, operating under 14 CFR Part 91, last departed the Float Pond for a local fishing trip at an unknown location and was returning to the Float Pond. No flight plan was filed and visual meteorological conditions prevailed. The airplane was substantially damaged and the Pilot in Command and the passenger were fatally injured.

The Piper PA-18 airplane, N87568, registered to and operated by the Pilot-in-Command, Ralph J. Stuhr, departed the housing subdivision's airstrip in North Pole, Alaska, between 2130 and 2145. A flight plan was filed but not activated. The destination was the Tanana Flats.

According to Fairbanks Tower Tapes, N5960H called in and stated he was 5 miles to the east for landing on the float pond. The tower cleared him for entry into a right base. Shortly after acknowledging the call, N5960H called and stated he was being pushed up and collided with another airplane; he was coming apart and going down out of control. The airplane crashed approximately 10 miles to the east of Fairbanks International Airport.

Damage to aircraft

N5960H

All flight control surfaces and major components of the airplane were located at the accident scene except for the floats. The floats were located 1 mile north of the accident site. The airplane did not burn and was substantially damaged.

N87568

All flight controls and major components with the exception of the outboard 2 feet of the left wing were found at the accident site. The main wreckage was destroyed by fire and impact forces.

The floats from N5960H and the outboard 2 feet of the left wing from N87568 were located approximately 1 mile north of N87568 wreckage site. The floats were 100 yards west of the 2 foot wing section.

Personnel information

N5960H

The Pilot-in-Command of N5960H, was the holder of an Airline Transport Pilot Certificate, number 317443971, with ratings in airplane single engine and multi engine land. He had commercial privileges in airplane single engine sea. He held a flight instructor certificate with airplane single and multi engine, and instrument airplane ratings. He was the holder of a Federal Aviation Administration (FAA) Class 2 Medical Certificate, issued on 01/25/93, with a restriction that required him to wear glasses for near and distant vision. According to information provided by the FAA, Oklahoma City, Oklahoma, he had a total flight time of 6925 hours.

The passenger of N5960H was also a certificated pilot, certificate number 427255340. He held a Private Pilot Certificate with an airplane single engine land rating only. He was the holder of a FAA Class 3 Medical Certificate, issued on 03/03/93, with a restriction that required him to wear corrective lenses and was not valid for night flying or by color signal control. He was seated in the left seat.

According to the registered airplane owner, the Pilot-in- Command was authorized to use the airplane and he used it for float plane flight instruction.

N87568

The Pilot-in-Command of N87568 was the holder of a Private Pilot Certificate, number 1729006, with airplane single engine land and sea ratings. He was the holder of a FAA Class 3 Medical Certificate, issued on 09/03/92, with a restriction that required him to wear lenses for distant vision and possess glasses for near vision. According to information provided by the FAA the pilot had a total flight time of 1400 hours.

Meteorological information

Visual meteorological conditions prevailed through out the Tanana and Fairbanks area. According to the Fairbanks International Airport 2058 hourly observation the skies were 7,500 scattered, 8,000 broken and 27,000 overcast. The sun however was low in the sky and near the horizon. The trajectory of the sun at that time of the year is very shallow and even when the sky is overcast the sun becomes visible when it is low on the horizon. The sun was visible below the clouds and above the horizon and was situated in the northwestern sky.

According to an azimuth and elevation computation program from MACSWAIN Enterprises, V1.1, the sun was 9.5 degrees above the horizon and on a 303.7 degree azimuth.

Communications

N5960H contacted Fairbanks Tower at 2134 when he was 8 miles east of the airport. He stated he was inbound for the float pond and had information "MIKE." He was told to report a right base for float pond one. According to the Fairbanks Tower Controller at 2153 he heard N5960H state he hit another aircraft and was about five miles east, out of control, going down. There was no other call or response from N5960H.

There is no record of any radio contact with N87568.

Wreckage and impact information

N5960H

This airplane wreckage was located at coordinates 64 degrees 42.295' North and 147 degrees 41.199' West. The general elevation of the area varies between 400 to 600 feet above mean sea level. The area in which the airplane crashed was a small stand of trees surrounded by swamp and marsh. The airplane was laying on its right side with the nose of the airplane pointing to 345 degrees magnetic. The right wing was attached to the fuselage and was crushed by the fuselage. The left wing was attached to the fuselage at the wing roots and was resting parallel to the airplane's heading and forward of the main wreckage.

Examination of the wreckage showed that no flaps were applied, that the airplane was equipped with dual controls, the mixture control was full rich, the throttle was full on, and the primer was locked. All flight control surfaces were located at the scene. The floats were missing and only the rear vertical float struts were found.

According to the strikes on the surrounding trees, the airplane descended into the stand of trees moving in an easterly direction of 073 degrees magnetic. According to information supplied by Fairbanks Tower and the location of the wreckage and the float pond, the airplane's flight path was generally a west, northwest direction.

There was no fire.

N87568

This airplane was located approximately 1/4 mile north of the wreckage of N5960H, a magnetic bearing of 356 degrees. The airplane was destroyed by post impact fire and was resting on its left side in a brush covered area. The nose of the airplane was pointing to a heading of 110 degrees magnetic. The left wing was destroyed by the fire, however, enough of the spar was located to show that it came to rest perpendicular to the main fuselage, pointing in a northerly direction. The right wing was located forward of the nose of the airplane and nearly parallel to the fuselage. The floats remained attached to the fuselage and were resting against two trees.

The flight path of this airplane is not known, however, according to the wife of the Pilot-in-Command of N87568, he departed North Pole and was destined for the Tanana Flats which would have required a westerly general direction.

Approximately 1/2 mile further north of the wreckage of N87568, the floats of N5960H were located. They were resting in a swamp on their left side. They remained attached to each other only through the water rudder cable system. The left float was positioned ahead of the left float and was crushed at the bow of the float. The right float had a hole on its right side approximately 3 feet aft o

History of flight

On July 8, 1993, at 2145 Alaska daylight time, a float equipped Piper PA-16 airplane, N5960H, registered to Jonathan L. Finkel of Fairbanks, Alaska, and operated by the Pilot in Command, collided with another airplane, N87568, a Piper PA 18 airplane, while in cruise flight and preparing to enter a right base for the Float Pond at the Fairbanks International Airport, Fairbanks, Alaska. The accident occurred 8 miles east of the airport on the 100 degree radial of the Fairbanks VOR. The personal flight, operating under 14 CFR Part 91, last departed the Float Pond for a local fishing trip at an unknown location and was returning to the Float Pond. No flight plan was filed and visual meteorological conditions prevailed. The airplane was substantially damaged and the Pilot in Command and the passenger were fatally injured.

The Piper PA-18 airplane, N87568, registered to and operated by the Pilot-in-Command, Ralph J. Stuhr, departed the housing subdivision's airstrip in North Pole, Alaska, between 2130 and 2145. A flight plan was filed but not activated. The destination was the Tanana Flats.

According to Fairbanks Tower Tapes, N5960H called in and stated he was 5 miles to the east for landing on the float pond. The tower cleared him for entry into a right base. Shortly after acknowledging the call, N5960H called and stated he was being pushed up and collided with another airplane; he was coming apart and going down out of control. The airplane crashed approximately 10 miles to the east of Fairbanks International Airport.

Damage to aircraft

N5960H

All flight control surfaces and major components of the airplane were located at the accident scene except for the floats. The floats were located 1 mile north of the accident site. The airplane did not burn and was substantially damaged.

N87568

All flight controls and major components with the exception of the outboard 2 feet of the left wing were found at the accident site. The main wreckage was destroyed by fire and impact forces.

The floats from N5960H and the outboard 2 feet of the left wing from N87568 were located approximately 1 mile north of N87568 wreckage site. The floats were 100 yards west of the 2 foot wing section.

Personnel information

N5960H

The Pilot-in-Command of N5960H, was the holder of an Airline Transport Pilot Certificate, number 317443971, with ratings in airplane single engine and multi engine land. He had commercial privileges in airplane single engine sea. He held a flight instructor certificate with airplane single and multi engine, and instrument airplane ratings. He was the holder of a Federal Aviation Administration (FAA) Class 2 Medical Certificate, issued on 01/25/93, with a restriction that required him to wear glasses for near and distant vision. According to information provided by the FAA, Oklahoma City, Oklahoma, he had a total flight time of 6925 hours.

The passenger of N5960H was also a certificated pilot, certificate number 427255340. He held a Private Pilot Certificate with an airplane single engine land rating only. He was the holder of a FAA Class 3 Medical Certificate, issued on 03/03/93, with a restriction that required him to wear corrective lenses and was not valid for night flying or by color signal control. He was seated in the left seat.

According to the registered airplane owner, the Pilot-in- Command was authorized to use the airplane and he used it for float plane flight instruction.

N87568

The Pilot-in-Command of N87568 was the holder of a Private Pilot Certificate, number 1729006, with airplane single engine land and sea ratings. He was the holder of a FAA Class 3 Medical Certificate, issued on 09/03/92, with a restriction that required him to wear lenses for distant vision and possess glasses for near vision. According to information provided by the FAA the pilot had a total flight time of 1400 hours.

Meteorological information

Visual meteorological conditions prevailed through out the Tanana and Fairbanks area. According to the Fairbanks International Airport 2058 hourly observation the skies were 7,500 scattered, 8,000 broken and 27,000 overcast. The sun however was low in the sky and near the horizon. The trajectory of the sun at that time of the year is very shallow and even when the sky is overcast the sun becomes visible when it is low on the horizon. The sun was visible below the clouds and above the horizon and was situated in the northwestern sky.

According to an azimuth and elevation computation program from MACSWAIN Enterprises, V1.1, the sun was 9.5 degrees above the horizon and on a 303.7 degree azimuth.

Communications

N5960H contacted Fairbanks Tower at 2134 when he was 8 miles east of the airport. He stated he was inbound for the float pond and had information "MIKE." He was told to report a right base for float pond one. According to the Fairbanks Tower Controller at 2153 he heard N5960H state he hit another aircraft and was about five miles east, out of control, going down. There was no other call or response from N5960H.

There is no record of any radio contact with N87568.

Wreckage and impact information

N5960H

This airplane wreckage was located at coordinates 64 degrees 42.295' North and 147 degrees 41.199' West. The general elevation of the area varies between 400 to 600 feet above mean sea level. The area in which the airplane crashed was a small stand of trees surrounded by swamp and marsh. The airplane was laying on its right side with the nose of the airplane pointing to 345 degrees magnetic. The right wing was attached to the fuselage and was crushed by the fuselage. The left wing was attached to the fuselage at the wing roots and was resting parallel to the airplane's heading and forward of the main wreckage.

Examination of the wreckage showed that no flaps were applied, that the airplane was equipped with dual controls, the mixture control was full rich, the throttle was full on, and the primer was locked. All flight control surfaces were located at the scene. The floats were missing and only the rear vertical float struts were found.

According to the strikes on the surrounding trees, the airplane descended into the stand of trees moving in an easterly direction of 073 degrees magnetic. According to information supplied by Fairbanks Tower and the location of the wreckage and the float pond, the airplane's flight path was generally a west, northwest direction.

There was no fire.

N87568

This airplane was located approximately 1/4 mile north of the wreckage of N5960H, a magnetic bearing of 356 degrees. The airplane was destroyed by post impact fire and was resting on its left side in a brush covered area. The nose of the airplane was pointing to a heading of 110 degrees magnetic. The left wing was destroyed by the fire, however, enough of the spar was located to show that it came to rest perpendicular to the main fuselage, pointing in a northerly direction. The right wing was located forward of the nose of the airplane and nearly parallel to the fuselage. The floats remained attached to the fuselage and were resting against two trees.

The flight path of this airplane is not known, however, according to the wife of the Pilot-in-Command of N87568, he departed North Pole and was destined for the Tanana Flats which would have required a westerly general direction.

Approximately 1/2 mile further north of the wreckage of N87568, the floats of N5960H were located. They were resting in a swamp on their left side. They remained attached to each other only through the water rudder cable system. The left float was positioned ahead of the left float and was crushed at the bow of the float. The right float had a hole on its right side approximately 3 feet aft of

Aircraft · 2

Registration
N5960H
Reported as
Piper PA-16
Category
Airplane
Serial number
16-584
Airframe hours
2,470
Engine
Lycoming O-290-D2, 135 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Sparks, Donald K
Registered owner
Finkel, Jonathan L.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 15, 1993

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.

Registration
N87568
Reported as
Piper PA-18
Category
Airplane
Serial number
18-8116
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Stuhr, Ralph J.
Registered owner
Stuhr, Ralph J.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 29, 1992
Departed
North Pole, AK
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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N5960H
Age
48
Certificates
Commercial, Flight instructor, Airline transport
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Toxicology
Performed
Flight hours
6,925 total
Role
Pilot, aircraft N87568
Age
52
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Toxicology
Performed
Flight hours
1,400 total

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 4 knots
Visibility
40 statute miles
Lowest ceiling
8,000 ft broken
Temperature
68 °F, dew point 45 °F
Altimeter
30.00 inHg
Observed at
FAI, 10 nm away

FAA reports on this event · 2

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