CEN13LA198

NTSB accident investigation · Piper PA 46-350P · Rogers, AR · March 11, 2013

Accident · No injuriesLimited investigationFinal report
Date
March 10, 2013, 19:55 local (Mar 11, 2013, 00:55 UTC)
Place
Rogers, AR
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N71DHPiper PA 46-350P
Defining event
Landing-flare/touchdown: Turbulence encounter
Weather
Instrument (IMC) · Night
Status
Completed · report June 24, 2013
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20130310003359A
Case key
86447

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 failure to maintain control due to a sudden turbulence encounter while on final approach. Contributing to the accident was ice buildup on the wings’ leading edges.

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.

Turbulence: convective turbulenceEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA 46-350P: 1 caseAll aircraft: 145 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA 46-350P: 40 casesAll aircraft: 9,295 casesProbable cause
Temp/humidity/pressure: conducive to structural icingEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA 46-350P: 5 casesAll aircraft: 103 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

While on approach, ice accumulated on the wings’ leading edges. The pilot stated that the airplane was flying and handling well but that the air was turbulent during the descent. According to the pilot, when the airplane was about 75 to 100 feet above ground level, he encountered “severe turbulence” and a “downdraft,” which resulted in his inability to control the airplane's descent. Subsequently, the airplane landed hard on the runway. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. The sudden loss of control was consistent with inadequate airspeed for the weather conditions and leading edge ice buildup on the wings, which led to an aerodynamic stall.

Factual narrative

On March 10, 2013, about 1955 central daylight time, a Piper PA-46-350P airplane, N71DH, made a hard landing at the Rogers Municipal Airport (KROG), Rogers, Arkansas. The airline transport pilot and 3 passengers were not injured. The airplane sustained substantial damage to the wings. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Instrument meteorological conditions prevailed for the flight, which operated on an instrument flight rules flight plan. The flight originated from Chattanooga, Tennessee at 1800 eastern daylight time and was destined for KROG. In a statement provided by the pilot, he reported about one quarter inch of ice buildup on the wings during the approach. He recalls that the automated weather report at KROG reported the wind from 280 at 12 knots and gusting 22 to 30 knots. He stated that the airplane was flying and handling well, but the air was turbulent during the descent. He broke out of the clouds about 800 feet above the ground and was using the rudder to point the nose of the airplane 20-30 degrees right of the runway heading. He then encountered severe turbulence and a downdraft about 75 to 100 feet above ground level (AGL) so he applied full power to stop the decent. When he realized the decent wasn’t going to stop, he tried to flare the airplane. The airplane landed hard on the runway and sustained substantial damage to the wings. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation. At 1957, the aviation routine weather report for KROG reported wind from 290 degrees at 13 knots, gusting at 21 knots, 7 miles visibility, clouds overcast at 600 feet above ground level (AGL), temperature 0 degrees Celsius (C), dew point negative 1 degree C, and a barometric pressure of 29.89 inches of mercury. Pictures of the airplane following the accident revealed ice on the wings and leading edges.

Aircraft

Registration
N71DH
Reported as
Piper PA 46-350P
Category
Airplane
Serial number
4636027
Airframe hours
1,986
Engine
Lycoming TIO-540 SER, 310 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 22, 2012
Departed
KCHA · Chattanooga, TN
Destination
KROG · Rogers, AR
Flight plan
IFR
Airport
KROG · Rogers Municipal Airport-Carte, runway 20, 6,011 × 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
53
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
September 27, 2012
Seat
Left
Flight hours
3,964 total · 601 in this make and model · 3,853 as pilot in command · 89 in the last 90 days · 36 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night
Wind
290° at 13 knots, gusting 21
Visibility
7 statute miles
Lowest ceiling
600 ft overcast
Temperature
32 °F, dew point 30 °F
Altimeter
29.88 inHg
Observed at
ROG

Docket · 4

The files NTSB released with the investigation on April 30, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.8 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.

Other investigations on N71DH · 1

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