CEN12LA444

NTSB accident investigation · Piper PA-44-180 · Grand Forks, ND · July 15, 2012

Accident · No injuriesLimited investigationFinal report
Date
July 14, 2012, 23:20 local (Jul 15, 2012, 04:20 UTC)
Place
Grand Forks, ND
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N580NDPiper PA-44-180
Defining event
Landing-flare/touchdown: Landing gear not configured
Weather
Visual (VMC) · Night
Status
Completed · report November 26, 2012
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration - Fargo FSDO
FAA report
20120714017399A
Case key
84324

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 receiving instruction's failure to extend the landing gear and the flight instructor's failure to adequately monitor his student's actions during the approach.

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: forgotten action/omissionPersonnel issues › Action/decision · Student/instructed pilotPiper PA-44-180: 8 casesAll aircraft: 440 casesProbable cause
Attention/monitoring: task monitoring/vigilancePersonnel issues › Psychological · Instructor/check pilotPiper PA-44-180: 3 casesAll aircraft: 330 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 receiving instruction reported that during the downwind leg, after the flight instructor had simulated a single-engine failure of the twin-engine airplane, he began to fall behind on completing required checklist items, and, as result, he inadvertently forgot to extend the landing gear. He recalled hearing the landing gear warning horn while on the crosswind leg but reportedly was too distracted with flying the airplane to extend the landing gear at that point. He reported seeing sparks and hearing a grinding noise upon touchdown, at which time he also recalled hearing the landing gear warning horn. The flight instructor recalled that the airplane tail impacted the runway shortly after the pilot receiving instruction reduced engine power during the landing flare. The flight instructor noted that he heard the landing gear warning horn shortly after the airplane made contact with the runway. The airplane slid 200 to 300 feet on the lower fuselage before coming to a stop. A postaccident examination revealed that the landing gear selector handle was in the "UP" position. The landing gear extended normally into a down-and-locked position after the airplane was lifted off the ground and the landing gear selector handle was placed into the "DOWN" position. The operator reported that there were no mechanical anomalies that would have prevented the landing gear from extending normally.

Factual narrative

On July 14, 2012, at 2320 central daylight time, a Piper model PA-44-180 airplane, N580ND, was substantially damaged during a wheels-up landing at Grand Forks International Airport (KGFK), Grand Forks, North Dakota. The flight instructor and pilot receiving instruction were not injured. The airplane was registered to and operated by the University of North Dakota, under the provisions of 14 Code of Federal Regulations Part 91 without a flight plan. Night visual meteorological conditions prevailed for the local instructional flight that originated from KGFK about 2200. The flight instructor reported that the accident occurred while the pilot receiving instruction was demonstrating a landing with a simulated single engine failure of the twin-engine airplane. He recalled that the airplane tail impacted the runway shortly after the pilot receiving instruction reduced engine power during the landing flare. The flight instructor noted that he heard the landing gear warning horn shortly after the airplane made contact with the runway. The airplane slid 200 to 300 feet on the lower fuselage before coming to a stop. The pilot receiving instruction reported that during downwind, after the flight instructor had simulated the single engine failure, he began to fall behind on completing required checklist items, and as result, he inadvertently forgot to extend the landing gear. He recalled hearing the landing gear warning horn while on crosswind, but reportedly was too distracted with flying the airplane to extend the landing gear at that point. He reported seeing sparks and hearing a grinding noise upon touchdown, at which time he also recalled hearing the landing gear warning horn. A postaccident examination revealed that the landing gear selector handle was in the "UP" position. The landing gear extended uneventfully into a down-and-locked position after the airplane was lifted off the ground and the landing gear selector handle was placed into the "DOWN" position. The operator reported that there were no mechanical anomalies that would have prevented the landing gear from extending normally. Additionally, the operator stated that several lower fuselage structural components were damaged during the wheels-up landing. The pilot receiving instruction held a private pilot certificate with an airplane single engine land rating. He was not endorsed to act as pilot-in-command of a complex airplane. A complex airplane is equipped with a retractable landing gear, flaps, and a controllable pitch propeller. According to the operator, the pilot was receiving flight instruction towards a complex airplane endorsement in conjunction with the multi-engine training that he was receiving. He had accumulated 6 hours in a complex, multi-engine airplane when the accident occurred. At 2253, the airport's automatic weather observing station reported the following weather conditions: wind from 040 degrees at 6 knots, visibility 10 statute miles, broken ceiling 25,000 feet,temperature 25 degrees Celsius, dew point 19 degrees Celsius, altimeter 29.99 inches of mercury.

Aircraft

Registration
N580ND
Reported as
Piper PA-44-180
Category
Airplane
Serial number
4496257
Airframe hours
2,950
Engines
Lycoming LO-360-A1H6, 180 horsepower, reciprocatingLycoming O-360-A1H6, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
University of North Dakota
Registered owner
University of North Dakota
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · July 13, 2012
Departed
KGFK · Grand Forks, ND
Destination
KGFK · Grand Forks, ND
Airport
KGFK · Grand Forks International, runway 35L, 7,351 × 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
22
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
November 10, 2011
Seat
Right
Flight hours
766 total · 281 in this make and model · 664 as pilot in command · 149 in the last 90 days · 52 in the last 30 days · 4 in the last 24 hours
Role
Student pilot
Age
21
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, With waivers/limitations
Last flight review
May 31, 2012
Seat
Left
Flight hours
221 total · 6 in this make and model · 36 as pilot in command · 6 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night
Wind
40° at 6 knots
Visibility
10 statute miles
Lowest ceiling
25,000 ft broken
Temperature
77 °F, dew point 66 °F
Altimeter
29.98 inHg
Observed at
KGFK

Docket · 4

The files NTSB released with the investigation on September 14, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 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.