Amateur-built Zenith 701 accident near Augusta, Kansas, October 8, 2004
On October 8, 2004 at about 11:00 pm local time, a amateur-built Zenith 701, registered N701TD, was substantially damaged in an accident near Augusta, Kansas. It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The manufacturer's inadequate design/production of the landing gear axle leading to its separation and the airplanes subsequent nose over during the landing roll.. A factor was the axle's separation from its spring.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 8, 2004 · about 11:00 pm local time
- Place
- Augusta, Kansas · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built Zenith 701
- Registration
- N701TD · registry record · serial 7-3993
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The experimental amateur-built tailwheel airplane sustained substantial damage when the airplane nosed over during a landing. The pilot's accident report stated, "On touch down at private strip, landing slightly heavy but nothing excessive. Left main wheel contacted a slight depression and the axle separated. Left gear mainspring dug in causing plane to nose over [and] rotate to the left. Left over momentum caused the right wing to then strike the runway. After stopping, the tail then dropped back onto the ground." The pilot's safety recommendation stated that the "accident would not have happened if the axle assembly have been designed with adequate structure ... ." The axle manufacturer stated that ownership changed in November of 2000. The earlier company produced the WHLA7 Flange Mount Axles shipped with the accident airplane's kit. The current company designed the same model axle to have a "reinforcing ring welded to the base at the axle flange interface and the larger diameter hole in the flange base that accepts the axle stub." The manufacturer issued a Service Bulletin SRV101804 that showed the new design and an exchange program. That service bulletin is available through their website, www.matcomfg.com, on its technical support page.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 148 hours in all; 67 in this make and model; 148 as pilot in command
- Last flight review: October 20, 2003
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
- Injury: no injuries
The aircraft
- Last inspection: annual inspection
- Maximum gross weight: 1,100 lb
- Seats: 2
- Landing gear: fixed
- Engine: Rotax 912 UL (piston); 0 hours total
The flight
- Departed from: PVT Augusta KS at 10:50 pm
- Destination: PVT Augusta KS
- Flight plan: none
- Runway 36, 700 ft by 70 ft
Weather at the time
- Light: daylight
- Wind: from 010° at 7 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 81°F (27°C), dew point 54°F (12°C)
- Altimeter: 30.04 inHg
- Observation at 10:54 pm from AAO, 15 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.