ANC84LA029

NTSB accident investigation · Cessna 172RG · Big Lake, AK · January 7, 1984

Accident · No injuriesLimited investigationFinal report
Date
January 7, 1984, 10:15 local (19:15 UTC)
Place
Big Lake, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N4856VCessna 172RG
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19840107006439A
Case key
4266

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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/waterApproach - vfr pattern - final approach
Terrain condition - snowbankCause
Emergency procedure - simulatedPilot in command(cfi)Cause
Proper altitude - not maintainedPilot in command(cfi)Cause
Clearance - improperDual studentCause
Procedures/directives - not followedPilot in command(cfi)Cause

Analysis

The dual student and instructor were practicing emergency procedures. During the turn onto final approach the left main landing gear and left wing struck a snowbank. Flying club procedures state that no emergency practice procedure will be conducted below 500 ft AGL.

Aircraft

Registration
N4856V
Reported as
Cessna 172RG
Category
Airplane
Serial number
172RG0401
Airframe hours
1,105
Engine
Lycoming O-350-F1A6, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Elmendorf Aero Club
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 4, 1983 · 72 hours before
Departed
EDF · Elmendorf, 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
23
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,823 total · 80 in this make and model · 1,703 as pilot in command · 213 in the last 90 days · 150 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None
Temperature
5 °F, dew point 10 °F
Altimeter
29.00 inHg
Observed at
EDF, 23 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.

Other investigations on N4856V · 1

Matched to the same aircraft by N-number and date.