LAX99LA239

NTSB accident investigation · Cessna 150K · Hesperia, CA · June 26, 1999

Accident · No injuriesLimited investigationFinal report
Date
June 26, 1999, 14:30 local (21:30 UTC)
Place
Hesperia, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6171GCessna 150K
Weather
Visual (VMC) · Day
Status
Completed · report August 14, 2001
Report
Approved by Office Director
FAA report
19990626023299A
Case key
46942

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 misjudged landing flare point and failure to maintain an adequate airspeed margin, resulting in a stall and 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.

Hard landingLanding - flare/touchdown
Flare - misjudgedPilot in commandCause
Airspeed(vso) - not maintainedPilot in commandCause
Stall/mush - inadvertentPilot in command

Analysis

After receiving no response from the Common Traffic Advisory Frequency, the pilot proceeded on a 45-degree entry for right traffic to runway 3. Prior to turning downwind, he observed the windsock at the east end of the field indicating the wind was almost directly down runway 21. He flew over the runway and turned left to enter left traffic for runway 21. He stated he was established on final at 60 miles per hour with 30 degrees flaps and a 500-foot per minute sink rate, but decided he was high and increased the flaps to 40 degrees. He felt the approach was normal and experienced turbulence, which he described as light to moderate chop, while crossing a road on the east perimeter of the airport. He thought the sink rate momentarily increased as he began to flare and observed his airspeed was 60 miles per hour. As he completed the flare, he felt the sink rate stop as expected. He stated the airplane was 10 to 15 feet above the runway when it quit flying, dropped straight down, and bounced hard on the main landing gear. Before he could respond by adding power, the nose gear hit the ground and collapsed. The airplane skidded 30 to 35 feet before coming to a rest off the left side of the runway.

Factual narrative

On June 26, 1999, at 1430 hours Pacific daylight time, a Cessna 150K, N6171G, sustained substantial damage during a hard landing at the Hesperia, California, airport. The rented airplane was operated by Learn to Fly Unlimited, LLC, under the provisions of 14 CFR Part 91. The private pilot, the sole occupant, was not injured. The personal flight originated from Redlands Municipal Airport, Redlands, California, at 1320. Visual meteorological conditions prevailed, and no flight plan was filed.

The pilot stated he practiced landings at Redlands, then departed for Big Bear, California. After determining that conditions at Big Bear were unfavorable, he decided to go to Hesperia. He received no response from the Common Traffic Advisory Frequency (CTAF) and proceeded on a 45-degree entry for right traffic to runway 3. Prior to turning downwind, he observed the windsock at the east end of the field indicating the wind was almost directly down runway 21. He flew over the runway and turned left to enter left traffic for runway 21.

The pilot stated he was established on final at 60 miles per hour with 30 degrees flaps and a 500-foot per minute sink rate, but decided he was high and increased the flaps to 40 degrees. He felt the approach was progressing normally. While crossing a road on the east perimeter of the airport, he experienced turbulence, which he characterized as light to moderate chop. He thought the sink rate momentarily increased as he began to flare and observed his airspeed was 60 miles per hour. As he completed the flare, he felt the sink rate stop as expected. He stated the airplane was 10 to 15 feet above the runway when it quit flying, dropped straight down, and bounced hard on the main landing gear. Before he could respond by adding power, the nose gear hit the ground and collapsed. The airplane skidded 30 to 35 feet before coming to rest off the left side of the runway.

Aircraft

Registration
N6171G
Reported as
Cessna 150K
Category
Airplane
Serial number
15071671
Airframe hours
2,930
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Learn To Fly Unlimited, LLC
Registered owner
Robert Iliff
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 1, 1999 · 40 hours before
Departed
L12 · Redlands, CA
Destination
L26
Airport
L26 · Hesperia, runway 21, 3,910 × 50 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
40
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
357 total · 81 in this make and model · 279 as pilot in command · 2 in the last 90 days · 2 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 12 knots, gusting 19
Visibility
8 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 57 °F
Altimeter
29.00 inHg
Observed at
RAL, 29 nm away

FAA reports on this event · 1

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