# NTSB SEA93LA061: Champion 7ECA, N11096, Medford, OR, February 2, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 1, 1993, 16:20 local (Feb 2, 1993, 00:20 UTC)
- Place: Medford, OR
- Coordinates: 42.329734, -122.790466 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.3297&lon=-122.7905&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 19, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42984
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA93LA061
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42984/pdf
- Page: https://openairdocs.org/ntsb/SEA93LA061

## Probable cause

MOVEMENT OF THE TAILWHEEL ASSEMBLY WAS RESTRICTED.  IMPROPER MAINTENANCE WAS A FACTOR.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - landing gear,tailwheel assembly - movement restricted (cause)
  - maintenance - improper, unknown (contributing factor)
- On ground/water collision with object, landing - roll
  - object - sign

## Analysis

AT THE END OF A LOCAL PLEASURE FLIGHT, THE PILOT REPORTED THAT THE FIRST TOUCH AND GO WAS UNEVENTFUL. DURING THE SECOND LANDING, AFTER TOUCHDOWN, THE AIRPLANE VEERED SHARPLY TO THE LEFT.  THE PILOT APPLIED FULL RIGHT RUDDER AND PARTIAL BRAKE; HOWEVER, THE AIRPLANE CONTINUED TO THE LEFT AND EXITED THE SIDE OF THE RUNWAY, COLLIDING WITH A TAXIWAY SIGN BEFORE COMING TO REST.  AFTER THE ACCIDENT, THE TAILWHEEL ASSEMBLY WAS FOUND LOCKED IN AN OFFSET POSITION. DURING THE INSPECTION, IT WAS FOUND THAT A BOTTOM PLATE WAS ASSEMBLED INCORRECTLY AND WAS OUTSIDE OF A KEYWAY.

## Aircraft

- Registration: [N11096](https://openairdocs.org/deregistered/N11096-2013-04-30), registration cancelled 2013-04-30, S/N 425, built 1966 (OpenAirDocs)
- Reported make and model: CHAMPION 7ECA
- Registry model: [Champion 7ECA](https://openairdocs.org/model/champion-7eca) (registry code 21101NN) (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: 425
- Airframe hours: 1340
- Engines: LYCOMING O-235-C1 115 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mccall, Winston R.
- Registered owner: Mccall, Winston R.
- Airworthiness certificate: Standard, Aerobatic
- Last inspection: Annual, March 2, 1992, 32 hours before
- Airport: MFR, Medford, runway 32, 6,700 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 66; commercial, airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 33,600 total, 1,700 in this make and model, 31,000 as pilot in command, 26 in the last 90 days, 22 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 3 knots
- Visibility: 30 statute miles
- Lowest ceiling: 25,000 ft overcast
- Temperature: 52 °F, dew point 34 °F
- Altimeter: 30.00 inHg

## 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 19930201001379A](https://openairdocs.org/incident/19930201001379A), Feb 1, 1993: Bbavia 7ECA, Medford, OR, Substantial damage. Veered off runway as tailwheel touched down. Struck taxiway sign. Tailwheel assembly locked off set due installation

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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