WPR18TA212

NTSB accident investigation · ICP Savannah · Fairfield, UT · August 5, 2018

Accident · Minor injuriesFinal report
Date
August 5, 2018, 08:00 local (14:00 UTC)
Place
Fairfield, UT
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N951RAICP Savannah
Defining event
Approach-VFR pattern base: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report September 27, 2019
Report
Approved by Office Director
NTSB office
Western Pacific Region
FAA report
20180805010129A
Case key
97998

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to maintain airplane control after encountering a downdraft on approach to the runway.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotJensen Paul G SAVANNAH: 1 caseAll aircraft: 9,295 casesProbable cause
Wind: downdraftEnvironmental issues › Conditions/weather/phenomena · Effect on operationJensen Paul G SAVANNAH: 1 caseAll aircraft: 178 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 private pilot was on a personal cross-country flight and had maneuvered the airplane onto the base leg of the traffic pattern for his destination airport. He stated that the airplane likely encountered a downdraft and experienced a loss of lift. Despite his attempts to arrest the descent by adding full throttle, the airplane impacted terrain short of the runway. The pilot thought that the accident may have been prevented if he had configured the airplane to land in a steeper and higher approach, combined with more airspeed. He reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

On August 05, 2018, about 0800 mountain daylight time, an experimental Jensen ICP Savannah airplane, N951RA, encountered a downdraft and impacted terrain short of the runway at the West Desert Airpark, Fairfield, Utah. The private pilot received minor injuries; the airplane sustained substantial damage to the right wing. The airplane was registered to and operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91. Day visual meteorological conditions prevailed, and no flight plan had been filed. The personal cross-country flight originated from Spanish Fork Airport Springville-Woodhouse Field, Spanish Fork, Utah, about 0700 and was destined for Fairfield. The pilot stated that while on the base leg of the traffic pattern, the airplane experienced a loss of lift. Despite his attempts to arrest the descent by adding full throttle, the airplane collided with the desert terrain short of the runway. The pilot opined that the airplane had likely encountered a severe downdraft and the engine power was not sufficient to overcome the resulting descent rate. He thought that the accident may have been prevented if he had configured the airplane to land in a steeper and higher approach combined with more airspeed. He further stated that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N951RA
Reported as
ICP Savannah
Category
Airplane, amateur-built
Serial number
05-01-51-365
Built
2010
Engine
Rotax 912ULS, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · December 12, 2017
Departed
SPK · Spanish Fork, UT
Destination
UT99 · Fairfield, UT
Airport
UT99 · West Desert Airpark

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
61
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
March 19, 2017
Seat
Left
Restraint
3-point
Flight hours
606 total · 379 in this make and model · 555 as pilot in command · 8 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 55 °F
Altimeter
29.98 inHg
Observed at
KPVU, 17 nm away

Docket · 1

The files NTSB released with the investigation on October 30, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 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.