CEN20LA431

NTSB accident investigation · Cessna 172 · Big Rapids, MI · September 29, 2020

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 29, 2020, 18:40 local (22:40 UTC)
Place
Big Rapids, MI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N79300Cessna 172
Defining event
Takeoff: Wildlife encounter (non-bird)
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20200929012269A
Case key
102083

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

The airplane’s impact with a deer during takeoff.

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: animal(s)/bird(s)Environmental issues › Physical environment · Ability to respond/compensateCessna 172K: 2 casesAll aircraft: 358 casesProbable cause
Object/animal/substance: animal(s)/bird(s)Environmental issues › Physical environment · Effect on equipmentCessna 172K: 2 casesAll 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 instructor pilot reported that the pilot was taking off following a night touch and go landing when he and the pilot heard a loud thump and the airplane yawed strongly to the left. The instructor pilot took control of the airplane, continued the takeoff, brought the airplane back to the airport, and landed uneventfully. As the instructor pilot was taxiing the airplane to the ramp, both he and the pilot saw several deer adjacent to the runway. A postaccident examination revealed the airplane sustained substantial damage to the right horizontal stabilizer and elevator, and aft fuselage. The following morning a 100-pound deceased deer was found about 80 yards south of the departure runway. The pilot reported there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The damage the airplane sustained was consistent with a deer strike.

Aircraft

Registration
N79300
Reported as
Cessna 172 (K)
Category
Airplane
Serial number
17258029
Built
1969
Airframe hours
4,412
Engine
Lycoming O-320, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Majestic Air LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 10, 2020 · 104 hours before
Destination
13C · Lakeview, MI
Airport
RQB · Roben Hood, runway 27, 4,300 × 75 ft, asphalt
Equipment
Unknown

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
62
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Seat
Left
Restraint
4-point
Flight hours
7,000 total · 2,500 in this make and model · 120 in the last 90 days · 40 in the last 30 days · 4 in the last 24 hours
Role
Pilot
Age
45
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Unknown
Seat
Left
Restraint
4-point
Flight hours
800 total · 100 in this make and model · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 10 knots
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
55 °F, dew point 46 °F
Altimeter
29.79 inHg
Observed at
KFFX, 28 nm away
METAR
KFFX 292135Z AUTO 27010KT 10SM BKN025 BKN040 BKN050 13/08 A2979 RMK AO2 T01300078

Docket · 2

The files NTSB released with the investigation on September 1, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.4 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.