LAX01LA187

NTSB accident investigation · Bennett Glastar · Grass Valley, CA · May 19, 2001

Accident · Minor injuriesLimited investigationFinal report
Date
May 19, 2001, 14:45 local (21:45 UTC)
Place
Grass Valley, CA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N241GSBennett Glastar
Weather
Visual (VMC) · Day
Status
Completed · report March 30, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20010519014719A
Case key
52310

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 arrest the excessive descent rate. A contributing factor was the gusty wind conditions.

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
Weather condition - gustsFactor
Airspeed - not maintainedPilot in commandCause
Descent - excessivePilot in command
Hard landingLanding - flare/touchdown
Nose overLanding - roll

Analysis

According to the commercial pilot, he reduced power on final approach and then experienced an "extreme downdraft." He increased power in an attempt to arrest the excessive descent rate that ensued; however, he was unsuccessful. The airplane struck the ground and bounced back into the air. The pilot performed a go-around and conducted a low pass so that a person on the ground could examine the airplane. He was told that the nose landing gear was collapsed and the right wing was bent down approximately 20 degrees. The pilot performed another landing, during which the airplane skidded along the runway for 350 feet prior to veering off the side and nosing over. The closest weather reporting facility, which was 18 miles away, reported the wind at 14 knots with gusts to 23 knots. The pilot had accumulated a total of 32.2 hours of flight time in the accident airplane. The pilot indicated he could have landed with additional power and airspeed as a possible way of preventing the accident.

Factual narrative

On May 19, 2001, about 1445 Pacific daylight time, an experimental Bennett Glastar single engine airplane, N241GS, was substantially damaged when it nosed over after a hard landing at the Alta Sierra private airport near Grass Valley, California. The commercial pilot and his passenger received minor injuries. The airplane was registered to and operated by the pilot under the provisions of 14 CFR Part 91. Visual meteorological conditions prevailed for the personal flight, and a flight plan had not been filed. The local flight originated from Auburn, California, and was destined for Alta Sierra.

The pilot was returning to Alta Sierra after a local flight to Auburn for refueling. According to the pilot's written statement, they were approaching the south end of runway 01 when he reduced engine power for landing. He reported that at the same time, the flight "experienced an extreme downdraft and fell vertically onto the runway at the [runway] numbers." The pilot attempted to apply power to arrest the descent rate, but was unable to do so in time, indicating the throttle control was in the full power position at the time the airplane struck the ground.

The airplane bounced back into the air with the right wing "dipping down approximately 20 degrees" and the nose veering to the right. The pilot stabilized the airplane in ground effect and elected to conduct a go-around. He conducted a low pass so a person on the ground could examine the undercarriage, which is when he learned the nose landing gear was bent aft 90 degrees and the right wing was bent down approximately 20 degrees. The pilot landed the airplane a second time, and it skidded approximately 350 feet before veering off the side of the runway, where it nosed over. The airplane came to rest inverted.

At 1455, the Beale Air Force Base (BAB) weather observation facility, located 18 miles west of the accident site, reported the wind from the northwest at 14 knots with gusts to 23 knots. According to the pilot, the Alta Sierra airport did not have weather reporting capabilities.

The pilot built the experimental airplane and had flown it 32.2 hours. The pilot reported having logged a total of 1,178.6 hours of flight time. In the submitted Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), under the section titled, "Recommendations (How Could This Accident Have Been Prevented)," the pilot responded with, "possibly by landing with additional power and airspeed."

Aircraft

Registration
N241GS
Reported as
Bennett Glastar
Category
Airplane, amateur-built
Serial number
5113
Airframe hours
36
Engine
Lycoming O-360-A1F6, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gary R. Bennett
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · December 5, 2000 · 36 hours before
Departed
AUN · Auburn, CA
Destination
Q62 · Grass Valley, CA
Airport
Q62 · Alta Sierra, runway 01, 3,000 × 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
56
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
March 15, 2000
Seat
Left
Flight hours
1,179 total · 32 in this make and model · 998 as pilot in command · 19 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 15 knots, gusting 23
Visibility
25 statute miles
Temperature
99 °F, dew point 54 °F
Altimeter
29.86 inHg
Observed at
BAB, 18 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.