ERA11CA497

NTSB accident investigation · Piper PA-28-161 · Okeechobee, FL · September 21, 2011

Accident · No injuriesData collectionFinal report
Date
September 21, 2011, 16:15 local (20:15 UTC)
Place
Okeechobee, FL
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9249LPiper PA-28-161
Defining event
Approach-VFR pattern final: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report December 27, 2011
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20110921024759A
Case key
81860

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 student pilot's failure to maintain the proper glidepath during a power-off landing and the flight instructor's delayed remedial action.

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.

Action: incorrect action performancePersonnel issues › Action/decision · Student/instructed pilotPiper PA-28-161: 8 casesAll aircraft: 1,386 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotPiper PA-28-161: 10 casesAll aircraft: 894 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28-161: 8 casesAll aircraft: 809 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

According to the certified flight instructor (CFI), the student pilot entered the downwind leg of the traffic pattern and reduced the power to idle when the airplane was abeam the runway numbers in order to perform a power-off landing. The airplane slowed to glide speed, and the student pilot selected 10 degrees of flaps and turned onto the base leg. After turning onto final approach, the airplane's airspeed decreased to below 60 knots, and the CFI advised the student pilot to perform a go-around. The CFI then took control of the airplane to prevent an "imminent stall" and applied full power, but the airplane continued to descend. The airplane struck trees and a fence and then impacted the ground. The CFI subsequently reduced the power to idle and applied the brakes. However, the airplane struck another fence, turned 180 degrees, and came to rest in a grassy area to the left of the runway. The airplane sustained substantial damage to the wings and fuselage during the accident sequence. The CFI did not report any preexisting mechanical anomalies with the airplane.

Factual narrative

According to the flight instructor, he and the student pilot were on the second leg of a cross country flight when the student pilot entered the downwind leg of the traffic pattern at an intermediate airport. The flight instructor directed the student pilot to perform a power-off landing, and power was reduced to idle when the airplane was abeam the runway numbers. The airplane slowed to glide speed, and the student pilot selected 10 degrees of flaps and turned it to the base leg of the traffic pattern. After turning onto the final leg of the traffic pattern, the airplane's airspeed decreased to below 60 knots, and the flight instructor advised the student pilot to perform a go around. The flight instructor then took control of the airplane to prevent an "imminent stall" and applied full power, but the airplane continued to descend. The airplane struck trees and a fence, then impacted the ground. The flight instructor subsequently reduced the power to idle and applied the brakes. However, the airplane struck another fence, turned 180 degrees, and came to rest in a grassy area to the left side of the runway. The airplane sustained substantial damage to the wings and fuselage during the accident sequence. The flight instructor did not report any preexisting mechanical anomalies with the airplane.

Aircraft

Registration
N9249L
Reported as
Piper PA-28-161
Category
Airplane
Serial number
2841257
Airframe hours
11,787
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Flightsafety International
Registered owner
Flightsafety International
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
AAIP · September 16, 2011
Departed
PHK · Pahokee, FL
Destination
OBE · Okeechobee, FL
Flight plan
VFR
Airport
OBE · Okeechobee County Airport, runway 14, 4,000 × 75 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
26
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
May 31, 2010
Seat
Right
Flight hours
964 total · 253 in this make and model · 871 as pilot in command · 132 in the last 90 days · 18 in the last 30 days · 3 in the last 24 hours
Role
Student pilot
Age
31
Injuries
None
Certificate
Student
Medical
Class 1, Without waivers/limitations
Seat
Left
Flight hours
38 total · 38 in this make and model · 3 as pilot in command · 38 in the last 90 days · 14 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
100° at 7 knots
Visibility
10 statute miles
Lowest ceiling
5,500 ft broken
Temperature
82 °F, dew point 91 °F
Altimeter
29.97 inHg
Observed at
OBE

Docket · 4

The files NTSB released with the investigation on November 10, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 443 KB 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.