CEN10CA533

NTSB accident investigation · Piper PA46-310P · Farmington, NM · September 12, 2010

Accident · No injuriesData collectionFinal report
Date
September 12, 2010, 12:04 local (18:04 UTC)
Place
Farmington, NM
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N24WWPiper PA46-310P
Defining event
Landing-flare/touchdown: Landing gear not configured
Weather
Visual (VMC) · Day
Status
Completed · report May 5, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Albuquerque FSDO
FAA report
20100912045299A
Case key
77258

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 premature retraction of the landing gear and the flaps during landing. Contributing to the accident was the inadvertent dimming of the cockpit lighting, resulting in a perceived unsafe gear configuration.

Findings · 4

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 system: gear extension and retract sysAircraft › Aircraft systems · Incorrect use/operationPiper PA-46-310P: 2 casesAll aircraft: 416 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotPiper PA-46-310P: 4 casesAll aircraft: 1,386 casesProbable cause
Indicating/recording systems: central warningAircraft › Aircraft systems · Incorrect use/operationPiper PA-46-310P: 1 caseAll aircraft: 9 casesProbable cause
Environmental issuesEnvironmental issues › Task environment · Effect on operationPiper PA-46-310P: 1 caseAll aircraft: 7 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 landing after completing a practice instrument landing system approach in bright day conditions. The pilot reported that he extended the landing gear and flaps when he was about three miles from the airport. The airplane crossed the threshold of the runway and was just about to touch down when the pilot noticed that the landing gear green indicator lights appeared not to be illuminated. The pilot applied full throttle and immediately raised the landing gear and flaps. During the go-around attempt the airplane settled and the propeller struck the runway. The pilot held full power and a nose-high attitude as the airspeed decreased. The airplane struck obstructions on the side of the runway, resulting in substantial damage to the left wing. It then came to rest upright approximately halfway down the length of the runway. An inspection of the aircraft systems by a Federal Aviation Administration inspector revealed that the cockpit lighting dimmer switch, which controlled the illumination intensity of the landing gear lights, was set to the “Night Dim” position.

Factual narrative

The pilot was landing at mid-day in bright sunny conditions after completing a practice instrument landing system (ILS) approach. The pilot reported that he extended the landing gear and flaps when he was about three miles from the airport. The airplane crossed the threshold of the runway and was just about to touchdown when he noticed that the landing gear green indicator lights appeared not to be illuminated. The pilot went to full throttle, and immediately raised the landing gear and flaps. During the go-around attempt the airplane settled and the propeller struck the runway. The pilot held full power and a nose high attitude as the airspeed decreased. The airplane struck obstructions on the side of the runway and came to rest upright approximately 3,000 feet down the 6,704 foot long runway. There was substantial damage to the left wing. The solo pilot was not injured. An inspection of the aircraft systems by a Federal Aviation Administration inspector revealed that the cockpit lighting dimmer switch was set to the “Night Dim” position.

Aircraft

Registration
N24WW
Reported as
Piper PA46-310P
Category
Airplane
Serial number
46-8508071
Airframe hours
4,713
Engine
Continental Motors TSIO 520 Seri, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
Avionta LLC
Registered owner
Avionta LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 25, 2010
Departed
00C · Durango, CO
Destination
Farmington, NM
Airport
FMN · Four Corners Regional Airport, runway 25, 6,704 × 100 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
55
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
March 5, 2010
Seat
Left
Flight hours
2,644 total · 1,060 in this make and model · 2,564 as pilot in command · 123 in the last 90 days · 44 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 32 °F
Altimeter
30.29 inHg
Observed at
KFMN

Docket · 1

The files NTSB released with the investigation on November 4, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 424 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.

Other investigations on N24WW · 1

Matched to the same aircraft by N-number and date.