ERA13CA044

NTSB accident investigation · Cessna 172R · Miami, FL · October 20, 2012

Accident · No injuriesData collectionFinal report
Date
October 20, 2012, 07:15 local (11:15 UTC)
Place
Miami, FL
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N974BCCessna 172R
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Day
Status
Completed · report March 13, 2013
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20121020023709A
Case key
85482

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

The flight instructor's improper power management during a steep, obstacle-clearance approach, which resulted in a hard 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.

Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Incorrect use/operationCessna 172R: 37 casesAll aircraft: 1,285 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotCessna 172R: 7 casesAll aircraft: 894 casesProbable cause
Fuselage: gear attach fittings (on fus)Aircraft › Aircraft structures · Capability exceededCessna 172R: 1 caseAll aircraft: 16 cases

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

According to the flight instructor, he was demonstrating to a student pilot the technique required to land the airplane on a short runway over a 50-foot obstacle. About 50 feet over the runway, at an airspeed of 60 knots, with flaps fully deployed, the instructor reduced the throttle to idle and pitched the nose down to "increase airspeed" and flare the airplane before touchdown. Immediately after reducing the engine power to idle, the airplane "sunk," and the instructor responded with a full throttle application. However, the airplane was "too close to the ground," and the engine did not respond in time to prevent a hard landing, which resulted in substantial damage to the engine firewall. The instructor reported that there were no mechanical malfunctions or failures that would have precluded normal operation of the airplane.

Factual narrative

According to the flight instructor, he was demonstrating the technique required to land the airplane over a 50-foot obstacle to a short runway. At 50 feet over the runway, 60 knots airspeed, with flaps deployed, he reduced the throttle to idle and pitched the nose down to "increase airspeed" and flare the airplane prior to touchdown. Immediately after reducing the engine power to idle, the airplane "sunk" and the instructor responded with a full-throttle application. The airplane was "too close to the ground" and the engine did not respond in time to prevent a hard landing, which resulted in substantial damage to the engine firewall. The instructor reported that there were no mechanical malfunctions or failures that would have precluded normal operation of the airplane.

Aircraft

Registration
N974BC
Reported as
Cessna 172R
Category
Airplane
Serial number
17280044
Airframe hours
6,068
Engine
Lycoming IO360 SER A&C, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
ADF Airways
Registered owner
L & W Aircraft Investment LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 5, 2012 · 85 hours before
Departed
TMB · Miami, FL
Destination
Miami, FL
Airport
TMB · Kendall Tamiami, runway 27L, 5,999 × 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
37
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Seat
Right
Flight hours
993 total · 645 in this make and model · 906 as pilot in command · 120 in the last 90 days · 77 in the last 30 days · 0 in the last 24 hours
Role
Student pilot
Age
17
Injuries
None
Certificate
Student
Medical
Class 1, Without waivers/limitations
Seat
Left
Flight hours
49 total · 49 in this make and model · 5 as pilot in command · 49 in the last 90 days · 24 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
9 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 72 °F
Altimeter
29.88 inHg
Observed at
TMB

Docket · 3

The files NTSB released with the investigation on February 4, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.7 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.