# NTSB FTW90LA050: Cessna 152, N5414P, Glencoe, OK, January 6, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 6, 1990, 12:10 local (18:10 UTC)
- Place: Glencoe, OK
- Coordinates: 36.220462, -96.920234 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.2205&lon=-96.9202&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 4, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 23091
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW90LA050
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23091/pdf
- Page: https://openairdocs.org/ntsb/FTW90LA050

## Probable cause

THE POWER LOSS DUE TO CARBURETOR ICE, WHICH RESULTED FROM THE PILOT'S FAILURE TO ENGAGE CARBURETOR HEAT IN A TIMELY MANNER. A FACTOR IN THIS ACCIDENT WAS THE PILOT'S LACK OF TOTAL EXPERIENCE.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(partial) - nonmechanical, maneuvering
  - weather condition - carburetor icing conditions (cause)
  - carburetor heat - delayed, pilot in command (cause)
  - lack of total experience, pilot in command (contributing factor)
- Forced landing, descent - emergency
- In flight collision with object, descent - emergency
  - object - tree(s)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

DURING A SOLO SESSION, A STUDENT PILOT ATTEMPTED TO DO A PRACTICE FORCED LANDING. WEATHER CONDITIONS WERE VMC; HOWEVER, THE TEMPERATURE WAS 45 DEGREES FAHRENHEIT AND THE DEW POINT WAS 28 DEGREES FAHRENHEIT. THE PILOT ATTEMPTED RECOVERY BY ADVANCING THE THROTTLE AND APPLYING CARBURETOR HEAT SIMULTANEOUSLY. BECAUSE OF THE LATE APPLICATION OF CARBURETOR HEAT, ICING FORMED AND THE RECOVERY FROM THE PRACTICE FORCED LANDING COULD NOT BE ACCOMPLISHED. A FORCED LANDING WAS ATTEMPTED TO A ROAD; HOWEVER, VEHICULAR TRAFFIC FORCED THE PILOT TO CHANGE LANDING SITES. THE AIRPLANE CONTACTED TREES AND DESCENDED OUT OF CONTROL TO GROUND IMPACT. CONDITIONS WERE CONSISTENT WITH SERIOUS ICING POTENTIAL AT A GLIDE POWER SETTING.

## Aircraft

- Registration: [N5414P](https://openairdocs.org/deregistered/N5414P-1998-08-10), registration cancelled 1998-08-10, S/N 15284939 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs)
- Category: Airplane
- Serial number: 84939
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Stillwater Flight Center, Inc
- Registered owner: Unknown
- Departed: SWO, STILLWATER, OK
- Airport: NONE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; student; medical: class 3, valid medical--w/ waivers/lim; flight hours: 44 total, 44 in this make and model, 10 as pilot in command, 25 in the last 90 days, 7 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 340° at 6 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 45 °F, dew point 28 °F
- Observed at: WDG, 20 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 (OpenAirDocs).

- [Accident 19900106000139A](https://openairdocs.org/incident/19900106000139A), Jan 6, 1990: Cessna 152, Glencoe, OK, Substantial damage. Engine failed to respond after practicing a forced landing approach. Struck trees on real forced landing. Carb ice.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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