- Date
- May 18, 2010, 12:00 local (17:00 UTC)
- Place
- Lee's Summit, MO
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N236CCCalcote Clarence E Glasair RG
- Defining event
- Landing: Landing gear not configured
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 22, 2010
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA Kansas City FSDO
- FAA report
- 20100518034589A
- Case key
- 76042
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The failure of the landing gear to fully extend and lock in the down position for unknown reasons.
Findings · 2
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot was returning for landing at the non-towered airport after a local flight. The pilot said he had an electrical problem during the arrival and the landing gear failed to extend. The pilot then used the "override valve" to attempt to manually extend the gear. On touchdown the landing gear was not extended and the wings contacted the concrete pavement. There was substantial damage to both wings, one wingtip, and the airplane's engine mounts. The fuel tanks ruptured and there was a significant fuel spill but no post-impact fire. The solo pilot was not injured. The FAA inspector that responded to the scene observed the recovery of the airplane. With the airplane suspended on a hoist, the landing gear extended and retracted normally using airplane's battery power; and extended normally and locked into place using only the landing gear bypass valve.
Factual narrative
The pilot was returning for landing at the non-towered airport after a local flight. The pilot said he had an electrical problem during the arrival and the landing gear failed to extend. The pilot then used the "override valve" to attempt to manually extend the gear. On touchdown the landing gear was not extended and the wings contacted the concrete pavement. There was substantial damage to both wings, one wingtip, and the airplane's engine mounts. The fuel tanks ruptured and there was a significant fuel spill but no post-impact fire. The solo pilot was not injured. The FAA inspector that responded to the scene observed the recovery of the airplane. With the airplane suspended on a hoist, the landing gear extended and retracted normally using airplane's battery power; and extended normally and locked into place using only the landing gear bypass valve.
Aircraft
- Registration
- N236CC
- Reported as
- Calcote Clarence E Glasair RG
- Category
- Airplane, amateur-built
- Serial number
- 295
- Airframe hours
- 955
- Engine
- Penn-Yan XE320, 185 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · January 18, 2010 · 3 hours before
- Departed
- LXT · Lee's Summit, MO
- Destination
- LXT · Lee's Summit, MO
- Airport
- LXT · Lee's Summit Municipal Airport, runway 36
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
- 62
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- March 2, 2009
- Seat
- Left
- Flight hours
- 1,193 total · 283 in this make and model · 1,133 as pilot in command · 4 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 300° at 8 knots
- Visibility
- 10 statute miles
- Temperature
- 162 °F
- Observed at
- LXT
Docket · 1
The files NTSB released with the investigation on June 25, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 779 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.