WPR10CA270

NTSB accident investigation · Beech C24R · Boise, ID · May 29, 2010

Accident · No injuriesData collectionFinal report
Date
May 29, 2010, 15:05 local (21:05 UTC)
Place
Boise, ID
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N23995Beech C24R
Defining event
Landing-flare/touchdown: Landing gear not configured
Weather
Visual (VMC) · Day
Status
Completed · report October 21, 2010
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA Boise FSDO
FAA report
20100529006109A
Case key
76161

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 properly configure the landing gear for landing and the flight instructor's inadequate supervision.

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.

Landing gear systemAircraft › Aircraft systems · Not used/operatedBeech C24R: 1 caseAll aircraft: 113 casesProbable cause
Action: forgotten action/omissionPersonnel issues › Action/decision · PilotBeech C24R: 1 caseAll aircraft: 440 casesProbable cause
Attention/monitoring: monitoring other personPersonnel issues › Psychological · Instructor/check pilotBeech C24R: 1 caseAll aircraft: 200 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 receiving instruction and the certified flight instructor (CFI) reported that while attempting a simulated engine-out approach, the pilot failed to lower the airplane’s landing gear. During the landing flare the stall warning horn activated followed by the activation of the gear warning horn. The gear warning horn had not activated during the power-off approach. The CFI immediately took the controls and attempted to add full power, but the pilot's hand on the controls prevented him from achieving full throttle application. The CFI was only able to add approximately half power. The airplane subsequently landed in a gear-up configuration. The operator of the airplane indicated that there were no known mechanical malfunctions or failures with the airplane. The pilot stated that he had not specifically checked the gear warning horn on that flight, but it had been operating properly earlier that day.

Factual narrative

The pilot receiving instruction and the certified flight instructor (CFI) reported that while attempting a simulated engine-out approach, the pilot failed to lower the airplane’s landing gear. During the landing flare the stall warning horn activated followed by the activation of the gear warning horn. The gear warning horn had not activated during the power-off approach. The CFI immediately took the controls and attempted to add full power, but the pilot's hand on the controls prevented him from achieving full throttle application. The CFI was only able to add approximately half power. The airplane subsequently landed in a gear-up configuration. The operator of the airplane indicated that there were no known mechanical malfunctions or failures with the airplane. The pilot stated that he had not specifically checked the gear warning horn on that flight, but it had been operating properly earlier that day.

Aircraft

Registration
N23995
Reported as
Beech C24R
Category
Airplane
Serial number
MC-473
Airframe hours
3,505
Engine
Lycoming IO-360-A1B6, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
P-Factor LLC, doing business as Glass Cockpit Aviation
Registered owner
Jessen Aircraft LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 3, 2010
Departed
KBOI · Boise, ID
Destination
KBOI · Boise, ID
Airport
KBOI · Boise, runway 28L, 9,736 × 150 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
34
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Seat
Left
Flight hours
367 total · 11 in this make and model
Role
Flight instructor
Age
38
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Seat
Right
Flight hours
550 total · 50 in this make and model · 518 as pilot in command · 100 in the last 90 days · 35 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 8 knots
Visibility
10 statute miles
Temperature
57 °F, dew point 36 °F
Altimeter
30.19 inHg
Observed at
KBOI

Docket · 3

The files NTSB released with the investigation on July 14, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 727 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.