CEN13CA335

NTSB accident investigation · Cessna 172S · Ann Arbor, MI · June 9, 2013

Accident · No injuriesData collectionFinal report
Date
June 9, 2013, 11:00 local (15:00 UTC)
Place
Ann Arbor, MI
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N857SPCessna 172S
Defining event
Landing-flare/touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 23, 2013
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards District Office
FAA report
20130609009259A
Case key
87148

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 pilot’s failure to make a go-around in a timely manner and his loss of control during landing.

Findings · 3

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.

Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeCessna 172S: 9 casesAll aircraft: 594 casesProbable cause
Action: incorrect action selectionPersonnel issues › Action/decision · PilotCessna 172S: 3 casesAll aircraft: 397 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotCessna 172S: 32 casesAll aircraft: 1,386 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 pilot was cleared to land on runway 30. The recorded wind was 110 degrees at 12 knots, gusting to 17 knots. The airplane touched down at 50 to 60 knots and about 700 feet short of the intersection with runway 6-24. A slight upward slope at the intersection caused the airplane to bounce and become airborne. The pilot contemplated making a go-around, but elected to continue the landing. Upon touching down again, the airplane began to porpoise, the nose wheel collapsed, and the airplane came to a stop.

Factual narrative

According to the pilot's statements contained in both the NTSB and Pittsfield Police Department accident reports, he made a stop-and-go landing on runway 6. Due to other airplanes in the traffic pattern, the pilot requested and was cleared to land on runway 12. He inadvertently aligned the airplane with runway 30 and was subsequently cleared to land on that runway. The recorded wind was almost a direct tailwind (110 degrees) at 12 knots, gusting to 17 knots. The pilot said he touched down at 50 to 60 KIAS (knots indicated airspeed) and about 700 feet short of the intersection with runway 06-24. A slight upward slope at the intersection caused the airplane to bounce and become airborne. The pilot contemplated making a go-around, but elected to continue the landing. Upon touching down again, the airplane began to porpoise, the nose wheel collapsed, and the airplane came to a stop. The passengers and a witness corroborated the pilot's statements. Postaccident examination revealed buckling of the engine firewall and a hole in the bottom of the fuselage.

Aircraft

Registration
N857SP
Reported as
Cessna 172S
Category
Airplane
Serial number
172S8115
Airframe hours
4,367
Engine
Lycoming IO-360-L2A, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
BTG Aviation, LLC, doing business as Aviation Center
Registered owner
BTG Aviation, LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 22, 2012 · 49 hours before
Departed
KARB · Ann Arbot, MI
Destination
KARB · Ann Arbot, MI
Airport
KARB · Ann Arbor Municipal, runway 30, 2,750 × 110 ft, grass/turf

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
37
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
September 25, 2012
Seat
Left
Flight hours
1,597 total · 22 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 12 knots, gusting 17
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 57 °F
Altimeter
30.07 inHg
Observed at
KARB

Docket · 3

The files NTSB released with the investigation on June 26, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.0 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.