ANC89FA049

NTSB accident investigation · Cessna A-185-F · Puntilla Lake, AK · March 6, 1989

Accident · Minor injuriesField investigationFinal report
Date
March 6, 1989, 11:30 local (15:30 UTC)
Place
Puntilla Lake, AK
Injuries
1 minor, 2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N1292FCessna A-185-F
Weather
Visual (VMC) · Day
Status
Completed · report September 28, 1990
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890306003099A
Case key
5103

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's failure to obtain an adequate airspeed, the turn to reverse course maneuver performed at the reduced airspeed and poor preflight planning. Contributing to the accident were the mountainous terrain and the downdraft conditions.

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.

Altitude deviation,uncontrolledTakeoff - initial climb
Terrain condition - mountainous/hillyFactor
Airspeed(vlof) - reducedPilot in commandCause
Weather condition - downdraftFactor
Maneuver - improperPilot in commandCause
Preflight planning/preparation - poorPilot in commandCause
In flight collision with terrain/waterManeuvering - turn to reverse direction

Analysis

Immediately after takeoff, the pilot became unsure of clearing the mountainous terrain. A 180 deg turn was initiated during which the pilot encountered a strong downdraft. Passengers and witnesses stated that the airplane maintained an unusual nose-high attitude and low airspeed from lift-off to just before impact. The pilot had taken off from a rough area on the frozen lake, different from the usual takeoff area.

Aircraft

Registration
N1292F
Reported as
Cessna A-185-F
Category
Airplane
Serial number
18502812
Airframe hours
3,793
Engine
Continental IO-520-D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Jim & Julie Okonek
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 19, 1988 · 6 hours before
Departed
NONE
Destination
NONE · Rohn River, 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
57
Certificates
Flight instructor, Flight engineer, Airline transport, Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
11,500 total · 1,000 in this make and model · 9,010 as pilot in command · 23 in the last 90 days · 23 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 10 knots
Visibility
25 statute miles
Lowest ceiling
None
Temperature
16 °F, dew point 10 °F
Altimeter
29.00 inHg
Observed at
PTI, 5 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.