LAX06CA162

NTSB accident investigation · Beech BE23 · Kingman, AZ · May 5, 2006

Accident · No injuriesData collectionFinal report
Date
May 5, 2006, 08:25 local (15:25 UTC)
Place
Kingman, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8750MBeech BE23
Weather
Visual (VMC) · Day
Status
Completed · report August 29, 2006
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20060505006719A
Case key
63639

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 student pilot's failure to attain/maintain a proper glide path, which resulted in an encounter with wake turbulence and subsequent hard landing.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightLanding - flare/touchdown
Proper glidepath - not obtained/maintainedPilot in commandCause
Wake turbulence - encounteredPilot in commandCause
Hard landingDescent - uncontrolled
Terrain condition - runway

Analysis

The airplane encountered wake turbulence and landed hard. The student pilot was on a solo flight practicing touch-and-go takeoffs and landings. While the accident airplane was on the base leg of the traffic pattern, a twin engine airplane touched down on the runway surface. The accident airplane turned onto final approach and encountered wake turbulence about 5 to 6 feet above the runway surface. The airplane's left wing immediately lifted up about 45 degrees. The pilot recovered to a wings-level attitude just prior to the airplane slamming down on the runway surface. As a result of the hard impact, the nose wheel collapsed and a fire erupted as the airplane slid down the runway; fire consumed the airplane. The student pilot reported that there were no failures or malfunctions with the airplane prior to the accident.

Factual narrative

The airplane landed hard and was consumed by a post-impact fire. The student pilot was on a solo flight practicing touch-and-go takeoffs and landings. While the accident airplane was on the base leg of the traffic pattern, a twin engine airplane touched down on the runway surface. The accident airplane proceeded onto final approach and encountered wake turbulence about 5 to 6 feet above the runway surface. The airplane's left wing immediately lifted up about 45 degrees. The pilot recovered to a wings-level configuration just prior to the airplane slamming down on the runway surface. As a result of the hard impact the nose wheel collapsed and a fire erupted as the airplane slid down the runway; fire consumed the airplane.

The student pilot reported that there were no failures or malfunctions with the airplane prior to the accident. Weather recorded by the destination airport's Automated Surface Observing System about 25 minutes prior to the accident indicated calm winds. The student pilot reported 68 hours total flight time and 20 hours of pilot-in-command (solo) flight time.

Federal Aviation Administration Advisory Circular 90-23F, Aircraft Wake Turbulence, states that wake turbulence (vortices) are generated once the aircraft lifts off because wake turbulence (trailing vortices) are a by-product of wing lift. The advisory circular notes that when landing behind a larger aircraft on the same runway, the smaller aircraft should stay at or above the larger aircraft's final approach flight path and land beyond its touchdown point in order to avoid the wake turbulence.

Aircraft

Registration
N8750M
Reported as
Beech BE23
Category
Airplane
Serial number
M-538
Engine
Lycoming O-320, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Departed
IGM · Kingman, AZ
Destination
IGM · Kingman, AZ
Airport
IGM · Kingman Airport, runway 21, 6,831 × 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
48
Certificate
Student
Medical
Class 3
Flight hours
68 total · 68 in this make and model · 65 in the last 90 days · 40 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 25 °F
Altimeter
29.92 inHg
Observed at
IGM

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.