WPR23LA290

NTSB accident investigation · Beech 23 · Coolin, ID · July 30, 2023

Accident · Serious injuriesClass 4 · LimitedFinal report
Date
July 30, 2023, 15:45 local (22:45 UTC)
Place
Coolin, ID · Lakeside, Cavanaugh Bay (66S)
Injuries
2 serious, 1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N2362ZBeech 23
Defining event
Takeoff: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20230730012769A
Case key
192756

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 from trees after takeoff, during high density altitude weather conditions.

Findings · 6

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.

Temp/humidity/pressure: high density altitudeEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentBeech 23: 1 caseAll aircraft: 278 casesProbable cause
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedBeech 23: 3 casesAll aircraft: 1,310 casesProbable cause
Attention/monitoring: monitoring environmentPersonnel issues › Psychological · PilotBeech 23: 2 casesAll aircraft: 809 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · PilotBeech 23: 2 casesAll aircraft: 792 casesProbable cause
Fuel systemAircraft › Aircraft systems · Incorrect use/operationBeech 23: 1 caseAll aircraft: 181 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 reported that during the takeoff roll, he “saw rotate speed” and then pitched for best climb speed. He had no further memory of the event. A witness reported that they saw the airplane lift off from the runway and remain in ground effect until it crossed the departure end of the runway. As it crossed the departure end of the runway, it was in a left bank and then struck a tree. The airplane impacted a public beach and came to rest upright, in shallow water. The wings and fuselage sustained substantial damage. At 1535, the temperature was 30°C, the dewpoint was 4°C, and the altimeter setting was 29.98. The calculated density altitude was 4,790 ft. The pilot reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operation.

Aircraft

Registration
N2362Z
Reported as
Beech 23
Category
Airplane
Serial number
M-76
Built
1962
Airframe hours
2,078.97
Engine
Lycoming O-360-D2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 25, 2022
Destination
KPUW · Pullman, WA
Airport
66S · Cavanaugh Bay, runway 15/33, 3,100 × 120 ft, grass/turf
Equipment
ADS-B, Electronic flight bag or handheld device

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
46
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
June 19, 2023
Seat
Left
Restraint
Lap only
Flight hours
108 total · 9 in this make and model · 44 as pilot in command · 4 in the last 90 days · 2 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 39 °F
Altimeter
29.98 inHg
Observed at
KSZT, 17 nm away
METAR
METAR KSZT 302235Z AUTO 24008KT 198V308 10SM CLR 30/04 A2998

Docket · 4

The files NTSB released with the investigation on November 16, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.9 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 N2362Z · 2

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