ANC89FA090

NTSB accident investigation · Bellanca 17-30 · Near Fairbanks, AK · June 8, 1989

Accident · FatalField investigationFinal report
Date
June 7, 1989, 20:00 local (Jun 8, 1989, 04:00 UTC)
Place
Near Fairbanks, AK
Injuries
3 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
CGLJMBellanca 17-30
Weather
Day
Status
Completed · report July 29, 1992
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
5111

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

Improper in-flight planning/decision by the pilot, and his failure to maintain sufficient altitude while entering a box canyon and/or crossing mountainous terrain in restricted weather condition. The terrain and weather were related factors.

Analysis

The plt rcvd a wx briefing earlier in the day. During a departure from Fairbanks, AK, he requested stage ii radar service to the south, en route to valdez, AK. The acft never arrived at valdez. On 7/12/89, it was located where it had crashed at an elevation of about 7000 ft, Near the top of a mtn ridge. Impact occurred on the north side of the mtn on steep snow covered terrain in a box canyon area. An exam of the wreckage indcd the landing gear was retracted during impact. The prop was not found, but 4 prop attach bolts were found that had been sheared. Aprx 37 mi west at healy river (elevation 1294 ft), the 1945 adt wx was in part: 5000 ft scattered, 12,000 ft scattered, 18,000 ft thin broken, visibity 35 mi. About 115 mi southeast at gulkana (elevation 1578) the 1952 adt sky condition was: 5000 ft scattered, 8000 ft broken.

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.

In flight collision with terrain/waterCruise
In-flight planning/decision - improperPilot in commandCause
Weather condition - cloudsFactor
Terrain condition - high terrainFactor
Terrain condition - blind/box canyonFactor
Proper altitude - not maintainedPilot in commandCause

Aircraft

Registration
CGLJM
Reported as
Bellanca 17-30
Category
Airplane
Serial number
30023
Airframe hours
2,131
Engine
Continental IO-520-D, 285 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
David Evans
Registered owner
David A Evans
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 24, 1989 · 9 hours before
Departed
FAI · Fairbanks, AK
Destination
VDZ · Valdez, AK

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
35
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
722 total · 415 in this make and model · 636 as pilot in command · 56 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Day
Wind
140° at 10 knots
Temperature
64 °F, dew point 25 °F
Altimeter
29.00 inHg
Observed at
HRR, 37 nm away