# NTSB SEA07CA091: AC Mfg & Dev't CH 2000, N368AM, Madera, CA, April 3, 2007

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: April 3, 2007, 16:10 local (23:10 UTC)
- Place: Madera, CA
- Coordinates: 36.99361, -120.11222
- Nearby events: https://openairdocs.org/map.md?lat=36.9936&lon=-120.1122&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 27, 2007
- Report: Approved by Office Director
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 65546
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA07CA091
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/65546/pdf
- Page: https://openairdocs.org/ntsb/SEA07CA091

## Probable cause

The improper flare which resulted in a hard landing and porpoise.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Hard landing, landing
  - flare - improper, pilot in command (cause)
  - porpoise/pilot-induced oscillation - encountered, pilot in command (cause)

## Analysis

The solo student pilot was landing and the airplane ballooned while on short final.  The airplane touched down hard on the main gear and porpoised down the runway.  During the accident sequence, the firewall was wrinkled.  The student pilot stated that no mechanical malfunctions occurred.

## Factual narrative

The solo student pilot was landing and the airplane ballooned while on short final.  The airplane touched down hard on the main gear and porpoised down the runway.  During the accident sequence, the firewall was wrinkled.  The student pilot stated that no mechanical malfunctions occurred.

## Aircraft

- Registration: [N368AM](https://openairdocs.org/deregistered/N368AM-2018-03-22), registration cancelled 2018-03-22, S/N 20-1062, built 2005 (OpenAirDocs)
- Reported make and model: AC Mfg & Dev't Co CH 2000
- Registry model: [Aircraft Mfg & Development CH 2000](https://openairdocs.org/model/aircraft-mfg-development-ch-2000) (registry code 0033001) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 20-1062
- Engines: Textron Lycoming O-235 reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Sierra Academy of Aeronautics/KS Aviation Services
- Registered owner: Christiansen Aviation Inc.
- Airworthiness certificate: Special, Experimental (Special)
- Departed: MAE, Madera, CA
- Airport: MAE, Madera Muni AP, runway 30, 5,545 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Student pilot; age 21; student; medical: class 2; flight hours: 35 total, 35 in this make and model, 1 as pilot in command, 35 in the last 90 days, 30 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 39 °F
- Altimeter: 29.98 inHg
- Observed at: KFAT, 23 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 (OpenAirDocs).

- [Accident 20070403005939A](https://openairdocs.org/incident/20070403005939A), Apr 3, 2007: Zinair CH2000, Madera, CA, Substantial damage. (-23) Student pilot on second supervised solo operation. Landed and porpoised finally hitting on nose wheel and hitting propeller on the runway. Counseled…

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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