ANC23LA058

NTSB accident investigation · Cort J Neuman Apex · Wasilla, AK · August 1, 2023

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
August 1, 2023, 15:15 local (23:15 UTC)
Place
Wasilla, AK
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N907AXCort J Neuman Apex
Defining event
Takeoff: Ground collision
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20230801015929A
Case key
192778

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 clearance during takeoff, which resulted in impact with trees.

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.

Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Capability exceededCort J Neuman APEX: 1 caseAll aircraft: 265 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 stated that he planned to take the passenger on a local sightseeing flight. During takeoff from the 1,600 ft. long gravel-covered runway, the airplane performed as expected until reaching about 50 ft above ground level (agl), at which point the climb performance degraded significantly. He observed no change in engine performance or weather conditions. As the airplane neared the end of the runway, he realized that he would not be able to pass over the trees that bordered the airport and attempted to maintain direction control avoiding a heading to the larger trees. The airplane collided with the trees sustaining substantial damage to the wings and fuselage. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N907AX
Reported as
Cort J Neuman Apex
Category
Airplane, amateur-built
Serial number
1
Built
2022
Airframe hours
100
Engine
Custom O-360-C1G EXP, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Continuous airworthiness · April 6, 2023 · 31 hours before
Destination
Same as departure
Airport
97AK · High Ridge Association Airport, runway 080, 1,800 × 150 ft, gravel
Equipment
ADS-B, Satellite tracking device, Onboard weather, Electronic multifunction display

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
59
Injuries
Minor
Certificates
Airline transport, Military
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
February 14, 2023
Seat
Front
Restraint
3-point
Flight hours
12,200 total · 131 in this make and model · 2,500 as pilot in command · 60 in the last 90 days · 60 in the last 30 days · 0.2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 57 °F
Altimeter
30.07 inHg
Observed at
PAAQ, 6 nm away
METAR
PAAQ 012353Z 25006KT 10SM CLR 24/14 A3007 RMK AO2 SLP182 T02440139 10244 20178 56007

Docket · 2

The files NTSB released with the investigation on February 1, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.1 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.