ERA11CA017

NTSB accident investigation · Cessna 120 · Falls Village, CT · October 11, 2010

Accident · No injuriesData collectionFinal report
Date
October 11, 2010, 08:05 local (12:05 UTC)
Place
Falls Village, CT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N89603Cessna 120
Defining event
Takeoff: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report March 16, 2011
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20101011047249A
Case key
77535

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 abort the takeoff, which resulted in an in-flight collision with terrain.

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.

Action: lack of actionPersonnel issues › Action/decision · PilotCessna 120: 1 caseAll aircraft: 792 casesProbable cause
Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 120: 1 caseAll aircraft: 265 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 stated that he was repositioning the tail-wheeled airplane from a 720-foot grass strip to an airport for maintenance. He computed a takeoff distance of 450 feet and completed two practice takeoff runs to verify that the airplane was able to take off from the short runway. During the practice runs, with the airplane about 400 feet down the runway at an airspeed of 50 knots, the tail would rise normally and the pilot would abort the takeoff. During the accident takeoff roll, about 400 feet down the strip, the airplane encountered a dip in the terrain and briefly became airborne. The airplane settled back onto the runway and the pilot continued the takeoff, rotating airborne about 100 feet prior to a cornfield off the departure end of the runway. The pilot attempted to gain altitude, but the airplane struck corn stalks and descended into terrain. During the accident sequence that airplane incurred substantial damage to the fuselage, wings, and engine firewall. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

According to the pilot, he was repositioning the tail-wheeled airplane from a 720-foot grass strip to an airport for maintenance. He computed a takeoff distance of 450 feet and completed two practice takeoff runs to verify that the airplane was able to take off from the short runway. During the practice runs, about 400 feet down the runway, when the airspeed indicated 50 knots, the tail "came up normal" and the pilot aborted the takeoff. About 400 feet into the accident takeoff roll, the airplane encountered a "dip," briefly became airborne, then settled back onto the runway. The pilot continued the takeoff, and rotated the airplane 100 feet prior to a cornfield off the departure end of the runway. The pilot attempted to gain altitude, but the airplane struck corn stalks and descended into terrain, which resulted in substantial damage to the fuselage, wings, and engine firewall. The pilot reported there were no mechanical anomalies with the airplane. The winds reported at an airport 30 miles to the north of the accident location were calm.

Aircraft

Registration
N89603
Reported as
Cessna 120
Category
Airplane
Serial number
8650
Airframe hours
1,319
Engine
Cont Motor C85 SERIES, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
Willie Simon
Registered owner
Willie Simon
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 22, 1983
Departed
NONE · Falls Village, CT
Destination
GBR · Great Barringto, MA
Airport
NONE · Private Grass Strip, runway 18, 720 × 20 ft, grass/turf

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
55
Injuries
None
Certificates
Airline transport, Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Multi-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
September 23, 2010
Seat
Left
Flight hours
28,400 total · 12 in this make and model · 24,500 as pilot in command · 175 in the last 90 days · 35 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
45 °F, dew point 43 °F
Altimeter
29.78 inHg
Observed at
PSF, 30 nm away

Docket · 6

The files NTSB released with the investigation on November 21, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.0 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.