DEN89LA075

NTSB accident investigation · Cessna 152 · Gill, CO · February 9, 1989

Accident · No injuriesLimited investigationFinal report
Date
February 9, 1989, 13:15 local (20:15 UTC)
Place
Gill, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N69117Cessna 152
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 1991
Report
Approved by Office Director
FAA report
19890209002049A
Case key
17672

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

Improper use of the powerplant controls by the CFI during descent through low temperature air.

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 engine powerDescent - normal
Emergency procedure - simulatedPilot in command(cfi)
Throttle/power control - improper use ofPilot in command(cfi)Cause
Weather condition - temperature extremesFactor
Forced landingDescent - emergency
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - rough/unevenFactor
Terrain condition - snow covered
Nose overLanding - roll

Analysis

An ATP rated CFI and a dual student were practicing simulated forced landings over snow covered fields. During a descent, the CFI said he attempted to add full power but the engine would not accelerate. The CFI landed the acft in a snow covered corn field and the nose gear hit an embankment. The acft bounced into the air for another 100 feet. On the second touchdown, the nose gear dug in and the acft nosed over. A post accident engine run failed to reveal any evidence of a mechanical failure. The engine started and ran normally.

Aircraft

Registration
N69117
Reported as
Cessna 152
Category
Airplane
Serial number
15282493
Airframe hours
1,926
Engine
Lycoming O-235-L2C, 110 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Northern Colorado Aviation Inc
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
100 hour · November 18, 1988 · 60 hours before
Departed
GXY · Greeley, CO
Destination
GXY

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
34
Certificates
Flight instructor, Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
5,181 total · 1,400 in this make and model · 5,111 as pilot in command · 178 in the last 90 days · 78 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
60 statute miles
Lowest ceiling
None
Temperature
19 °F

FAA reports on this event · 1

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