- Date
- February 23, 2019, 18:40 local (23:40 UTC)
- Place
- Princeton, NJ
- Injuries
- 3 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N5338NCessna 172
- Defining event
- Landing: Wildlife encounter (non-bird)
- Weather
- Visual (VMC) · Night
- Status
- Completed · report September 26, 2019
- Report
- Approved by Office Director
- NTSB office
- General Aviation Accidents
- Parties
- FAA
- FAA report
- 20190223014949A
- Case key
- 99032
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
A collision with deer on the runway while landing at night and the airport's lack of a complete perimeter fence.
Findings · 4
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.
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 reported that, while landing at night, the airplane struck two deer on the runway. He added that he did not see the deer on the runway during the approach and landing. The airplane sustained substantial damage to the right horizontal stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration (FAA) Airport Facility Directory for the accident airport, stated, in part, "Deer and birds on and [in the vicinity of the airport]." The pilot stated that the airport's fencing was intermittent and that deer were frequently seen around the airport. The airport manager added that the airport's perimeter fence only covered the eastern and southern perimeter and that a deer strike occurred at least once every 2 years. However, according to the FAA Wildlife Strike Database the last reported wildlife strike at the accident airport occurred on April 10, 2012. The FAA's Part 139 CertAlert, No. 16-03, "Recommended Wildlife Exclusion Fencing," which provides airfield exclusion methods for deer and other large mammals, recommends constructing fencing "fully around the airfield without gaps."
Factual narrative
The pilot reported that, while landing at night, the airplane struck two deer on the runway. He added that he did not see the deer on the runway during the approach and landing. The airplane substantial damage to the right horizontal stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration (FAA) Airport Facility Directory, for the accident airport, in part stated: "Deer and birds on and [in the vicinity of the airport]." The pilot stated that the airport's fencing was intermittent, and that deer were frequently seen in and around the airport. Airport Manager added that the airport's perimeter fence only covered the eastern and southern perimeter and that a deer strike occurred at least once every two years. According to the Federal Aviation Administration (FAA) Wildlife Strike Database, for the accident airport, the last reported wildlife strike occurred on April 10, 2012. The FAA maintains a comprehensive program to address wildlife hazard through a database and a reporting strike form. (For more information, see Form Approved OMB No. 2120-0045 in the public docket.) The FAA, under National Part 139 CertALert, No. 16-03, Recommended Wildlife Exclusion Fencing, provides airfield exclusion methods for deer and other large mammals. (For more information, see CertALert No. 16-03 in the public docket.)
Aircraft
- Registration
- N5338N
- Reported as
- Cessna 172 (S)
- Category
- Airplane
- Serial number
- 172S9358
- Built
- 2003
- Airframe hours
- 8,772
- Engine
- Lycoming IO-360-L2A, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Raritan Valley Flying School
- Registered owner
- Raritan Valley Flying School
- Airworthiness certificate
- Standard, Utility; Standard, Normal
- Last inspection
- 100 hour · January 23, 2019
- Departed
- 39N · Princeton, NJ
- Destination
- 39N · Princeton, NJ
- Airport
- 39N · Princeton, runway 10, 3,499 × 75 ft, asphalt
- Equipment
- Handheld GPS, Electronic flight bag or handheld device
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
- 30
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- August 23, 2017
- Seat
- Left
- Restraint
- 3-point
- Flight hours
- 296.1 total · 129.1 in this make and model · 249.6 as pilot in command · 18.5 in the last 90 days · 2.2 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Night
- Wind
- 90° at 6 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 5,500 ft overcast
- Temperature
- 39 °F, dew point 30 °F
- Altimeter
- 30.29 inHg
- Observed at
- KTTN, 10 nm away
Docket · 6
The files NTSB released with the investigation on June 25, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 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.