NYC01LA054

NTSB accident investigation · Embraer 120RT · Charleston, WV · December 7, 2000

Accident · Serious injuriesLimited investigationFinal report
Date
December 6, 2000, 20:38 local (Dec 7, 2000, 01:38 UTC)
Place
Charleston, WV
Injuries
1 serious, 18 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N504ASEmbraer 120RT
Weather
Visual (VMC) · Night/dark
Status
Completed · report September 27, 2001
Report
Approved by Office Director
FAA report
20001206032489A
Case key
51307

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

Deer on the runway. Factors included reduced visibility due to nighttime lighting and light snow conditions, breaches in the perimeter fence, increased seasonal deer activity, and the rural location of the airport.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

On ground/water collision with objectLanding - roll
Object - animal(s)Cause
Light condition - nightFactor
Airport facilities,perimeter fence - not maintainedFactor
Airport/facilities - otherFactor
Object - animal(s)Factor
Weather condition - snowFactor

Analysis

An Embraer 120RT struck two deer on the runway during a night landing at a tower-operated, rural, mountaintop airport. At the time, skies were overcast, and light snow was falling. The tip of a propeller blade from the number 2 engine separated, and punctured the airplane's fuselage. A runway inspection had commenced shortly before the accident, but the inspection vehicle had not yet reached the area where the accident occurred. There were two breaches in the perimeter fence. Perimeter fence maintenance inspections had been conducted monthly, but were later scheduled to be increased during fall and winter seasons due to higher volumes of deer and greater deer activity. A program to clear the fence line of all brush and weeds, and remove all trees and brush inside the fence, was scheduled to begin during the spring of 2002. Deer elimination procedures within the fence perimeter were in effect; however, as a result of the accident, they were expanded to include deer near the fence. At the time of the accident, a yearlong wildlife management study was scheduled to commence in August 2001.

Factual narrative

On December 6, 2000, at 2038 eastern standard time, an Embraer 120RT, N504AS, operating as Atlantic Southeast Airways flight 71, was substantially damaged when it collided with deer during landing roll-out at Yeager Airport (CRW), Charleston, West Virginia. The 3-person crew and 15 passengers were uninjured, and 1 passenger received serious injuries. The accident occurred at night, during visual meteorological conditions. An instrument flight rules flight plan was filed for the flight, between The William B. Hartsfield Atlanta International Airport (ATL), Atlanta, Georgia, and Yeager Airport. The scheduled passenger flight was conducted under 14 CFR Part 121.

According to the captain, within seconds of landing on runway 23, the airplane struck two deer. The flight attendant then contacted the cockpit crew, and informed them that there was an injured passenger. After parking at the gate, a walk-around inspection revealed that the tip of a propeller blade from the number 2 engine had separated, and punctured the airplane's fuselage.

Weather at the time of the accident included overcast skies and light snow.

According to a Federal Aviation Administration (FAA) inspector, one of the deer was hit by the nose landing gear and the other was hit by the right engine propeller. The separated blade tip was about 4 inches long and 3 inches wide. It entered the cabin just aft of frame 21, between stringers 14R and 15R. The passenger was sitting in seat 3C.

A review of the tower audio recording revealed that an airport runway inspection had commenced shortly before the accident, but that the inspection vehicle had not yet reached the area where the accident occurred.

An airport inspection following the accident revealed breaches in the perimeter fence, in gully areas near the approach end of runway 15, and abeam runway 23, about 1,300 feet from the runway threshold.

According to the airport authority's assistant director, a wildlife inspection program was in effect at the time of the accident. Inspections of airport surfaces, including the one noted in the audio recordings, were conducted twice daily.

Higher deer activity was typically observed between October and January due to the mating season. Perimeter fence maintenance inspections, which were conducted monthly, were scheduled to be increased during upcoming fall and winter seasons, due in part, to the higher volume of deer at that time. A program to clear the fence line of all brush and weeds, and remove all trees and brush inside the fence, was scheduled to commence in the spring of 2002.

The Airport Authority was also authorized to eliminate deer as needed. While the program had been conducted within the perimeter fence for over 2 years, as a result of the accident, it was expanded to include deer near the perimeter fence as well.

At the time of the accident, a wildlife management study had been approved by the FAA. The yearlong study, to include management procedures, was scheduled to begin in August 2001.

Aircraft

Registration
N504AS
Reported as
Embraer 120RT
Category
Airplane
Serial number
120278
Engine
P&W PW-118, 1,800 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 121
Registered owner
Atlantic Southeast Airways
Airworthiness certificate
Standard, Transport
Departed
ATL · Atlanta, GA
Destination
CRW
Flight plan
IFR
Airport
CRW · Yeager Airport, runway 23, 6,302 × 150 ft, asphalt

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
28
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,510 total · 2,817 in this make and model · 1,890 as pilot in command · 235 in the last 90 days · 76 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
Variable at 4 knots
Visibility
7 statute miles
Lowest ceiling
2,900 ft overcast
Temperature
82 °F, dew point 68 °F
Altimeter
30.00 inHg
Observed at
CRW

FAA reports on this event · 1

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