GAA16CA129

NTSB accident investigation · Pilatus PC12 · Lawrenceville, GA · January 27, 2016

Accident · No injuriesData collectionFinal report
Date
January 26, 2016, 20:15 local (Jan 27, 2016, 01:15 UTC)
Place
Lawrenceville, GA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N338PCPilatus PC12
Defining event
Takeoff: Wildlife encounter (non-bird)
Weather
Visual (VMC) · Night
Status
Completed · report April 5, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA Atlanta FSDO
FAA report
20160126000439A
Case key
92728

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

An unintentional collision with a white-tailed deer during the takeoff roll in night visual conditions.

Findings · 1

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: animal(s)/bird(s)Environmental issues › Physical environment · Effect on equipmentAll aircraft: 358 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 operator reported that during the takeoff roll, at the moment of rotation during night visual conditions, the pilot observed two white-tailed deer (Odocoileus virginianus) running across the runway. The pilot maneuvered the airplane to avoid the deer, however one of the deer impacted the nose wheel. The pilot decided to continue the takeoff, the airplane orbited the airport for about 1.5 hours, and then landed without further incident. A postflight inspection revealed substantial damage to the fuselage. The operator verified that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. As a safety recommendation, the operator stated that wildlife strikes can be dealt with proactively through accurate reports from the airport users and airport management establishing a program of regular wildlife population control. The operator further stated that reporting wildlife activity is the most important element of this proactive approach and that without these reports airport managers cannot properly gauge the amount of timing of their response. The operator reported that from a conversation with the airport manager that the deer population has increased on the airport because of hunting pressure in the surrounding areas. The airport manager reported that all of the movement areas at the airport are fenced. He also reported that the airport fencing is "standard FAA (Federal Aviation Administration) specification 6 foot tall chain link fence with triple strand barbed wire at the top on standard 45 degree angle outriggers." The FAA has published CERTALERT 04-16 Deer Hazard to Aircraft and Deer Fencing (December 2004). This document describes the deer hazard to aircraft and recommends various airport fencing options to mitigate deer and aircraft strikes. This document states in part: "Elevated deer populations in the United States represent an increasingly serious threat to both commercial and general aviation aircraft. It is currently estimated that there over 26 million deer in the United States. Because of increasing urbanization and rapidly expanding deer populations, deer are adapting to human environments, especially around airports, where they often find food and shelter. Proper fencing is the best way of keeping deer off aircraft movement areas. The FAA recommends a 10-12 foot chain link fence with 3-strand barbed wire outriggers. In some cases an airport may be able to use an 8-foot chain link fence with 3-strand barbed wire outriggers, depending upon the amount of deer activity in a local area. All fencing must be properly installed and maintained. If deer are observed on or near the aircraft movement area, immediate action must be taken to remove them." The Georgia Department of National Resources Wildlife Resources Division has published White-Tailed Deer Fact Sheet (April 2004). This document describes the behavior patterns of the white-tailed deer and states inpart: "Deer are most active around dawn and dusk. This is called a crepuscular activity pattern."

Factual narrative

The operator reported that during the takeoff roll, at the moment of rotation during night visual conditions, the pilot observed two white-tailed deer (Odocoileus virginianus) running across the runway. The pilot maneuvered the airplane to avoid the deer, however one of the deer impacted the nose wheel. The pilot decided to continue the takeoff, the airplane orbited the airport for about 1.5 hours, and then landed without further incident. A postflight inspection revealed substantial damage to the fuselage. The operator verified that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. As a safety recommendation, the operator stated that wildlife strikes can be dealt with proactively through accurate reports from the airport users and airport management establishing a program of regular wildlife population control. The operator further stated that reporting wildlife activity is the most important element of this proactive approach and that without these reports airport managers cannot properly gauge the amount of timing of their response. The operator reported that from a conversation with the airport manager that the deer population has increased on the airport because of hunting pressure in the surrounding areas. The airport manager reported that all of the movement areas at the airport are fenced. He also reported that the airport fencing is "standard FAA (Federal Aviation Administration) specification 6 foot tall chain link fence with triple strand barbed wire at the top on standard 45 degree angle outriggers." The FAA has published CERTALERT 04-16 Deer Hazard to Aircraft and Deer Fencing (December 2004). This document describes the deer hazard to aircraft and recommends various airport fencing options to mitigate deer and aircraft strikes. This document states in part; Elevated deer populations in the United States represent an increasingly serious threat to both commercial and general aviation aircraft. It is currently estimated that there over 26 million deer in the United States. Because of increasing urbanization and rapidly expanding deer populations, deer are adapting to human environments, especially around airports, where they often find food and shelter. Proper fencing is the best way of keeping deer off aircraft movement areas. The FAA recommends a 10-12 foot chain link fence with 3-strand barbed wire outriggers. In some cases an airport may be able to use an 8-foot chain link fence with 3-strand barbed wire outriggers, depending upon the amount of deer activity in a local area. All fencing must be properly installed and maintained. If deer are observed on or near the aircraft movement area, immediate action must be taken to remove them. The Georgia Department of National Resources Wildlife Resources Division has published White-Tailed Deer Fact Sheet (April 2004). This document describes the behavior patterns of the white-tailed deer and states inpart; Deer are most active around dawn and dusk. This is called a crepuscular activity pattern.

Aircraft

Registration
N338PC
Reported as
Pilatus PC12 (45)
Category
Airplane
Serial number
338
Built
2000
Airframe hours
5,948.4
Engine
Pratt and Whitney Canada PT6A-67B, 1,200 horsepower, turbo prop
Damage
Substantial damage
Flight
Business · Part 91
Operator
Quest Diagnostics, Inc.
Registered owner
Spectrum Air, LLC.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 12, 2016
Departed
LZU · Lawrenceville, GA
Destination
PNS · Pensacola, FL
Flight plan
IFR
Airport
LZU · Gwinnett County - Briscoe Fiel, runway 25, 6,000 × 100 ft, asphalt
Equipment
Electronic primary flight display, Electronic multifunction display, Electronic flight bag or handheld device, Auto-pilot, Stall warning system

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
29
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
February 12, 2016
Seat
Left
Restraint
4-point
Flight hours
8,200 total · 450 in this make and model · 7,900 as pilot in command · 90 in the last 90 days · 30 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night
Wind
Calm
Visibility
5 statute miles
Lowest ceiling
3,500 ft overcast
Temperature
48 °F, dew point 46 °F
Altimeter
30.13 inHg
Observed at
KLZU

Docket · 6

The files NTSB released with the investigation on March 22, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.2 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.