SEA01LA156

NTSB accident investigation · Schweizer G-164B · Twin Falls, ID · August 22, 2001

Accident · No injuriesLimited investigationFinal report
Date
August 22, 2001, 09:50 local (15:50 UTC)
Place
Twin Falls, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3632TSchweizer G-164B
Weather
Visual (VMC) · Day
Status
Completed · report October 17, 2001
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20010822023899A
Case key
53084

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

Nose over during the landing roll for undetermined reasons.

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.

Nose overLanding - roll
Reason for occurrence undeterminedCause

Analysis

The pilot reported that during the landing roll, at approximately 35 to 40 mph, the aircraft developed a substantial shake. The tail then lifted and the aircraft nosed over and came to rest inverted. After the aircraft was righted and during the tow to the hangar, the brakes were tested and found to function with no evidence of a mechanical failure or malfunction. The pilot later reported that he did not apply the brakes nor did the tires slide.

Factual narrative

On August 22, 2001, about 0950 mountain daylight time, a Schweizer Aircraft G-164B, N3632T, registered to and operated by Ken Spray LLC, as a 14 CFR Part 137 aerial application flight, nosed over during the landing roll at Joslin Field - Magic Valley Regional airport, Twin Falls, Idaho. Visual meteorological conditions prevailed at the time and no flight plan was filed for the local flight. The aircraft was substantially damaged and the commercial pilot, the sole occupant, was not injured.

The pilot reported that during the landing roll on runway 7, at approximately 35 to 40 mph, the aircraft developed a "substantial shake..." The tail then lifted and the aircraft nosed over and came to rest inverted. The pilot later reported that he did not apply the brakes nor did the tires slide.

The aircraft was righted, and towed to the hanger. During the tow, the brakes were tested. No evidence of a mechanical failure or malfunction was found.

Aircraft

Registration
N3632T
Reported as
Schweizer G-164B
Category
Airplane
Serial number
772B
Airframe hours
5,400
Engine
P&W 1340-AN-2, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Ken Spray LLC
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · May 5, 2001 · 35 hours before
Departed
TWF · Twin Falls, ID
Airport
TWF · Joslin Field, runway 7, 8,703 × 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
57
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
May 29, 2001
Seat
Center
Flight hours
13,626 total · 10,857 in this make and model · 13,091 as pilot in command · 377 in the last 90 days · 135 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
TWF

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 N3632T · 3

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