CEN10CA026

NTSB accident investigation · Piper PA-44-180 · Grand Forks, ND · October 22, 2009

Accident · No injuriesData collectionFinal report
Date
October 22, 2009, 10:01 local (15:01 UTC)
Place
Grand Forks, ND
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N593NDPiper PA-44-180
Defining event
Landing: Landing gear not configured
Weather
Visual (VMC) · Day
Status
Completed · report April 19, 2010
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration - Fargo FSDO
FAA report
20091022050499A
Case key
74945

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 flight instructor's failure to ensure the landing gear was extended prior to landing.

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.

Landing gear systemAircraft › Aircraft systems · Not used/operatedPiper PA-44-180: 3 casesAll aircraft: 113 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · Instructor/check pilotPiper PA-44-180: 1 caseAll aircraft: 1,391 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 accident occurred during an instructional flight while practicing landings. The flight instructor reported that he became distracted while teaching his student and forgot to ensure that the landing gear was extended before landing. He stated that the landing gear warning horn was sounding before touchdown, but he did not realize that the landing gear was not configured until it was too late. Post accident inspection revealed that several fuselage structural components were damaged during the gear-up landing. The flight instructor reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation of the airplane.

Factual narrative

The accident occurred during an instructional flight while practicing landings. The flight instructor reported that he became distracted while teaching his student and forgot to ensure that the landing gear was extended before landing. He stated that the landing gear warning horn was sounding before touchdown, but he did not realize that the landing gear was not configured until it was too late. Post accident inspection revealed that several fuselage structural components were damaged during the gear-up landing. The flight instructor reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation of the airplane.

Aircraft

Registration
N593ND
Reported as
Piper PA-44-180
Category
Airplane
Serial number
4496270
Airframe hours
298
Engines
Lycoming LO-360-A1H6, 180 horsepower, reciprocatingLycoming O-360-A1H6, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
UND Aerospace Foundation
Registered owner
UND Aerospace Foundation
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · October 15, 2009
Departed
KGFK · Grand Forks, ND
Destination
KGFK · Grand Forks, ND
Airport
KGFK · Grand Forks International, runway 17L, 7,349 × 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
28
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
August 14, 2008
Seat
Right
Flight hours
1,050 total · 176 in this make and model · 829 as pilot in command · 168 in the last 90 days · 73 in the last 30 days · 2 in the last 24 hours
Role
Student pilot
Age
22
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, Without waivers/limitations
Last flight review
April 8, 2009
Seat
Left
Flight hours
258 total · 26 in this make and model · 70 as pilot in command · 45 in the last 90 days · 8 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
36 °F, dew point 32 °F
Altimeter
30.28 inHg
Observed at
KGFK

Docket · 1

The files NTSB released with the investigation on January 19, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 446 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.