# NTSB GAA16CA044: Cessna 172G, N3679L, Newfane, NY, November 9, 2015

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: November 9, 2015, 11:10 local (16:10 UTC)
- Place: Newfane, NY
- Coordinates: 43.320835, -78.729164 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.3208&lon=-78.7292&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Wildlife encounter (non-bird)](https://openairdocs.org/ntsb-events/310)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 15, 2016
- Report: Approved by Office Director
- NTSB office: General Aviation Accidents
- Parties: FAA
- NTSB case key (mKey): 92312
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA16CA044
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/92312/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=92312
- Page: https://openairdocs.org/ntsb/GAA16CA044

## Probable cause

An evasive maneuver during landing to avoid deer on the runway, which resulted in a runway overrun and collision with trees.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Object/animal/substance: animal(s)/bird(s)](https://openairdocs.org/ntsb-findings/03022045): Environmental issues › Physical environment · Ability to respond/compensate (probable cause); cases with it: [Cessna 172G, 1 case](https://openairdocs.org/ntsb-findings/03022045/cases.md?model=2072420), [All aircraft, 358 cases](https://openairdocs.org/ntsb-findings/03022045/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Landing-landing roll: Wildlife encounter (non-bird)](https://openairdocs.org/ntsb-events/310) (defining event); cases with it: [Cessna 172G, 1 case](https://openairdocs.org/ntsb-events/310/sequence.md?model=2072420), [All aircraft, 107 cases](https://openairdocs.org/ntsb-events/310/sequence.md)
- [Landing-landing roll: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Cessna 172G, 4 cases](https://openairdocs.org/ntsb-events/060/sequence.md?model=2072420), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md)
- [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Cessna 172G, 6 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2072420), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md)
- [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna 172G, 21 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2072420), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md)

## Analysis

The pilot reported that during the landing roll he observed two deer walk onto the runway. He reported that he avoided the deer by adding power and applying back pressure to the yoke. After he "cleared" the deer, the airplane "dropped" back onto the runway and began to porpoise. The pilot reported that he did not have enough airspeed to take off, and there was not enough remaining runway to stop prior to impacting the trees at the end of the runway. The pilot reported that there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The airplane sustained substantial damage to both wings.

## Factual narrative

The pilot reported that during the landing roll he observed two deer walk onto the runway. He reported that he avoided the deer by adding power and applying back pressure to the yoke. After he "cleared" the deer, the airplane "dropped" back onto the runway and began to porpoise. The pilot reported that he did not have enough airspeed to take off, and there was not enough remaining runway to stop prior to impacting the trees at the end of the runway. The pilot reported that there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The airplane sustained substantial damage to both wings.

## Aircraft

- Registration: [N3679L](https://openairdocs.org/deregistered/N3679L-2018-02-15), registration cancelled 2018-02-15, S/N 17253848, built 1965 (OpenAirDocs)
- Reported make and model: CESSNA 172G (G)
- Registry model: [Cessna 172G](https://openairdocs.org/model/cessna-172g) (registry code 2072420) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17253848
- Year built: 1965
- Engines: Lycoming O-320-E2D 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 26, 2015
- Departed: IAG, NIAGARA FALLS, NY
- Destination: D80, Newfane, NY
- Airport: D80, Olcott-Newfane, runway 24, 2,408 × 30 ft, grass/turf
- Equipment: None

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review February 15, 2015; seat: left; restraint: 4-point; flight hours: 400 total, 400 in this make and model, 400 as pilot in command, 20 in the last 90 days, 9 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 5 knots
- Visibility: 10 statute miles
- Temperature: 50 °F, dew point 37 °F
- Altimeter: 30.36 inHg
- Observed at: KIAG, 16 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 20151109022019A](https://openairdocs.org/incident/20151109022019A), Nov 9, 2015: Cessna 172G, Burt, NY, Substantial damage. Aircraft left kiag on a VFR flight to west Virginia. Before departing the area the pilot flew north toward lake ontario to sight see around fort niagara then…

## Docket (2 files)

The files NTSB released with the investigation on December 28, 2015, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=92312. 2.4 MB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40435228&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF
- Accident Photos (Courtesy of FAA) (item 2, .PDF, 2 photos, 536 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40435229&FileExtension=.PDF&FileName=Accident%20Photos%20(Courtesy%20of%20FAA)-Master.PDF

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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