ERA14CA310

NTSB accident investigation · Jackson Fred M Clipper · Altamont, NY · June 14, 2014

Accident · No injuriesData collectionFinal report
Date
June 14, 2014, 12:30 local (16:30 UTC)
Place
Altamont, NY
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2754AJackson Fred M Clipper
Defining event
Enroute-descent: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report September 2, 2014
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
FAA report
20140614012189A
Case key
89535

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 failure to apply carburetor heat prior to descending in atmospheric conditions conducive to serious icing at all power settings, which resulted in a total loss of engine power.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Temp/humidity/pressure: conducive to carburetor icingEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentJackson Fred M JACKSON CLIPPER: 1 caseAll aircraft: 435 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that he had applied carburetor heat intermittently during the flight, but that during the final descent to the destination airport, he did not. The engine stopped producing power, and during the subsequent forced landing the airplane collided with trees which resulted in substantial damage to the fuselage. The pilot reported that there were no mechanical deficiencies with the airplane that would have precluded normal operation, and stated that the engine stopped producing power due to carburetor icing. Interpolation of a carburetor icing probability chart revealed that atmospheric conditions at the time of the accident were conducive to serious icing at all power settings.

Factual narrative

The pilot reported that he had applied carburetor heat intermittently during the flight, but that during the final descent to the destination airport, he did not. The engine stopped producing power, and during the subsequent forced landing the airplane collided with trees which resulted in substantial damage to the fuselage. The pilot reported that there were no mechanical deficiencies with the airplane that would have precluded normal operation, and stated that the engine stopped producing power due to carburetor icing. Interpolation of a carburetor icing probability chart revealed that atmospheric conditions at the time of the accident were conducive to serious icing at all power settings.

Aircraft

Registration
N2754A
Reported as
Jackson Fred M Clipper
Category
Airplane, amateur-built
Serial number
2003
Built
2004
Airframe hours
28
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jackson Fred M
Registered owner
Jackson Fred M
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · May 20, 2014
Departed
H30 · Hamilton, NY
Destination
PVT · Altamont, 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
75
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Seat
Left
Restraint
Lap only
Flight hours
538 total · 28 in this make and model · 0 in the last 90 days · 0 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 18 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 48 °F
Altimeter
29.95 inHg
Observed at
ALB, 14 nm away

Docket · 4

The files NTSB released with the investigation on August 20, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.0 MB in all.

FAA reports on this event · 1

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