ERA12CA416

NTSB accident investigation · Cessna 172M · Churchville, MD · June 15, 2012

Accident · No injuriesData collectionFinal report
Date
June 15, 2012, 13:30 local (17:30 UTC)
Place
Churchville, MD
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N73134Cessna 172M
Defining event
Landing-landing roll: Ground collision
Weather
Visual (VMC) · Day
Status
Completed · report September 13, 2012
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20120615012039A
Case key
84096

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 tractor operator's failure to confirm the landing airplane's position before entering an active runway, which resulted in a ground collision.

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.

Object/animal/substance: ground equipmentEnvironmental issues › Physical environment · Effect on equipmentCessna 172M: 1 caseAll aircraft: 52 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · Airport personnelCessna 172M: 15 casesAll aircraft: 792 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 preparing to land at the airport and that he made radio calls on the common traffic advisory frequency (CTAF) to announce the airplane's position on the downwind, base, and final legs of the traffic pattern. While on the landing roll, as the airplane traveled over a crest in the runway, the pilot observed a tractor crossing the runway from left to right. The pilot steered the airplane to the right to avoid a collision, and the airplane's left wing contacted the tractor, which resulted in substantial damage. The operator of the tractor stated that he heard the airplane's CTAF transmissions but proceeded to cross the runway because he assumed that the airplane was already clear of the runway. The pilot reported there were no mechanical malfunctions or anomalies with the airplane.

Factual narrative

The pilot stated that he was preparing to land at the airport and made radio calls on the common traffic advisory frequency (CTAF) to announce the airplane's position on the downwind, base, and final legs of the traffic pattern. While on the landing roll, as the airplane traveled over a crest in the runway, the pilot observed a tractor crossing the runway from left to right. The pilot steered the airplane to the right to avoid a collision, and the airplane's left wing contacted the tractor, resulting in substantial damage. The operator of the tractor stated that he heard the airplane's CTAF transmissions, but proceeded to cross because he assumed that the airplane was clear of the runway. The pilot reported there were no mechanical malfunctions or anomalies with the airplane.

Aircraft

Registration
N73134
Reported as
Cessna 172M
Category
Airplane
Serial number
17267281
Airframe hours
10,540
Engine
Lycoming O-320 SERIES, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Ck Leasing Services LLC
Registered owner
Ck Leasing Services LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 20, 2012
Departed
0W3 · Churchville, MD
Destination
0W3 · Churchville, MD
Airport
0W3 · Harford County Airport, runway 01, 2,000 × 75 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
67
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
September 30, 2011
Seat
Left
Flight hours
520 total · 204 in this make and model · 506 as pilot in command · 6 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 4 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 55 °F
Altimeter
30.23 inHg
Observed at
APG, 6 nm away

Docket · 4

The files NTSB released with the investigation on July 19, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.9 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.