NYC90LA055

NTSB accident investigation · Cessna 150M · Schuyler, NY · January 20, 1990

Accident · Serious injuriesLimited investigationFinal report
Date
January 20, 1990, 10:40 local (15:40 UTC)
Place
Schuyler, NY
Injuries
1 serious, 1 minor
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N66787Cessna 150M
Weather
Visual (VMC) · Day
Status
Completed · report September 10, 1992
Report
Approved by Office Director
FAA report
19900120000879A
Case key
36601

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

The pilot's improper use of carburetor heat, which resulted in a loss of engine power due to carburetor ice.

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 power(total) - nonmechanicalCruise - normal
Weather condition - carburetor icing conditionsFactor
Carburetor heat - improper use ofPilot in commandCause
Fuel system,carburetor - iceCause
Forced landingDescent - emergency
Nose overLanding

Analysis

The student and instructor (CFI) were on a dual training flight practicing slow flight. When they returned to normal cruise, the engine started to sputter. Addition of carburetor heat did not clear up the problem. The aircraft was set for a forced landing. At approximately 50 feet a.g.l., the engine went to full power and the CFI decided to abort the landing and began raising the flaps. The engine quite again and the pilot lowered the nose; however, the aircraft struck the ground and nosed over. The temperature was 25 deg and the dew point 17, which falls within the 'icing glide and cruise power range of a carb icing probability chart. The a/c and engine were examined by FAA a/w inspectors. No descrepancies were noted.

Aircraft

Registration
N66787
Reported as
Cessna 150M
Category
Airplane
Serial number
15076280
Airframe hours
2,597
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Destroyed
Flight
Instructional · Part 91
Operator
Galaxy Aviation, Inc.
Registered owner
Bob Morse, Inc.
Airworthiness certificate
Standard, Utility
Last inspection
Unknown · November 1, 1989 · 42 hours before
Departed
4B2 · Marcy, NY

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
56
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
2,623 total · 1,204 in this make and model · 2,495 as pilot in command · 60 in the last 90 days · 13 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 10 knots
Visibility
20 statute miles
Lowest ceiling
10,000 ft overcast
Temperature
25 °F, dew point 18 °F
Altimeter
30.00 inHg
Observed at
UCA, 12 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.