ANC89LA116

NTSB accident investigation · Bellanca 7GCBC · Killey River, AK · July 6, 1989

Accident · No injuriesLimited investigationFinal report
Date
July 6, 1989, 13:30 local (21:30 UTC)
Place
Killey River, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N88273Bellanca 7GCBC
Weather
Visual (VMC) · Day
Status
Completed · report August 2, 1990
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890706020249A
Case key
5219

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 pilot failed to assure sufficient alt was obtained to compensate for the downdrafts near the ridge line.

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 flightManeuvering
Weather condition - mountain waveFactor
Aircraft control - not maintainedPilot in commandCause
Altitude - not maintainedPilot in commandCause
Remedial action - attemptedPilot in command
Airspeed - not maintainedPilot in commandCause
Airspeed(vyse) - improperPilot in commandCause
Stall
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The plt was flying at an alt of 50-75 feet AGL spotting bear when the accident occurred. The flt was traveling toward a ridge line and the plt reported a downdraft from the ridge caused the acft to lose alt. The plt attempted to recover with full pwr; however, the acft stalled at an alt of 10 ft AGL and descended to impact with the terrain.

Aircraft

Registration
N88273
Reported as
Bellanca 7GCBC
Category
Airplane
Serial number
75574
Airframe hours
1,060
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Thomas D. Dunn
Registered owner
Thomas D Dunn
Airworthiness certificate
Standard, Normal
Departed
Soldotna, AK

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
43
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
697 total · 624 in this make and model · 697 as pilot in command · 5 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point -0 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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