LAX97LA236

NTSB accident investigation · Grumman American AA-5B · Susanville, CA · July 9, 1997

Accident · No injuriesLimited investigationFinal report
Date
July 9, 1997, 12:40 local (19:40 UTC)
Place
Susanville, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N28299Grumman American AA-5B
Weather
Visual (VMC) · Day
Status
Completed · report December 15, 1997
Report
Approved by Office Director
FAA report
19970709017389A
Case key
29831

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 inadvertent encounter with unfavorable weather conditions during the landing, and his failure to maintain runway alignment. The sudden onset of crosswind gusts beyond the capability of the aircraft was a related factor.

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.

In flight encounter with weatherLanding - flare/touchdown
Weather condition - unfavorable windCause
Weather condition - crosswindFactor
Weather condition - gustsFactor
Flight into adverse weather - inadvertentPilot in commandCause
In flight collision with objectLanding - aborted
Proper alignment - not maintainedPilot in commandCause
Object - fence
In flight collision with terrain/waterLanding - aborted
Terrain condition - water

Analysis

The pilot flew over the airport to checked the wind, which he said favored Runway 16. He noted there was a little ripple on a lake adjacent to the runway, but no waves or white caps. He determined that the wind was probably 170 to 180 degrees at 6 to 7 knots, with the windsock about 1/2 way out. The landing approach was normal. During the landing flare, a gust of wind caused the right wing to rise unexpectedly to approximately a 45-degree angle, almost forcing the left wing on to the runway surface. The pilot reported that he attempted to go around; however, the wind was blowing the aircraft to the left, and the aircraft was 'behind the power curve.' The pilot also stated that 'I think I touched [down] but am not sure.' The aircraft ultimately crashed through a barbed wire perimeter fence before coming to rest in a lake. Rescue personnel reported that near the time the accident, the winds were 'kicking from the west' with short gusts of approximately 20 to 30 mph. Also, they noted that in the general area of the accident, 'gusts come out of nowhere on a moments notice.' Density altitude was computed to be 8,000 feet msl.

Factual narrative

On July 9, 1997, at 1240 hours Pacific daylight time, a Grumman American AA-5B, N28299, veered off the runway, collided with an airport perimeter fence, and came to rest in a lake during an aborted landing attempt at Spaulding Airport, Susanville, California. The aircraft was operated by the pilot for the personal cross-country flight. The aircraft was substantially damaged, and the certificated private pilot, the sole occupant, was not injured. The flight originated from the Nervino airport, Beckwourth, California, earlier that same day, and visual meteorological conditions prevailed at the time.

According to the pilot's written statement he flew over the airport at 7,000 feet msl and "checked [the] wind, which favored Rwy 16 . . . there was a little ripple on the water but no waves or white caps." He further noted that the wind was "probably 170-180 degrees at 6-7" knots and the "wind sock [was] about 1/2 way out." The landing approach was normal. During the landing flare, a gust of wind caused the right wing to rise unexpectedly to approximately a 45-degree angle, almost forcing the left wing on to the runway surface. The pilot reported that he attempted to go-around, however, the wind was blowing the aircraft to the left and the aircraft was "behind the power curve." The pilot also stated that "I think I touched [down] but am not sure." The aircraft ultimately crashed through a barbed wire fence before coming to rest in Eagle Lake.

Rescue personnel reported that near the time the accident occurred, the winds were "kicking from the west" with short gusts of approximately 20 to 30 mph. Additionally, they noted that in the general area of the accident, "gusts come out of nowhere on a moments notice."

The rescue personnel reported that the temperature was between 85 to 90 degrees Fahrenheit at the time the accident occurred. Based on that temperature and the airport elevation, the density altitude was computed to be 8,000 feet msl.

Aircraft

Registration
N28299
Reported as
Grumman American AA-5B
Category
Airplane
Serial number
AA5B0537
Engine
Lycoming O-360-A4K, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jerry R. Attaway
Registered owner
Catherine S. Haas
Airworthiness certificate
Standard, Normal; Standard, Utility
Departed
O02 · Beckwourth, CA
Destination
1Q2
Airport
1Q2 · Spaulding, runway 16, 4,600 × 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
51
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
305 total · 41 in this make and model · 246 as pilot in command · 10 in the last 90 days · 7 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
213° at 6 knots, gusting 13
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 25 °F
Observed at
GRS, 8 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.

Other investigations on N28299 · 1

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