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Atlas / NTSB / CEN10CA258

NTSB CAROL · Event

Event CEN10CA258

2010-05-18 Lee's Summit, Missouri, United States Airport · LXT None 1 aircraft Status: Completed

Registry · N236CC

FAA Aircraft Registry record.

Make / Model

GLASAIR GLASAIR RG

Year of manufacture

1984 · 26 years old at event

Engine

LYCOMING IO-320 SERIES (150 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19841214

ADS-B equipped

Yes — Mode-S A21EFF

Registrant of record

PROP AND JET AIR MUSEUM

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The failure of the landing gear to fully extend and lock in the down position for unknown reasons.

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. 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. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • C Aircraft-Aircraft systems-Landing gear system-Gear extension and retract sys-Malfunction - C
  • C Not determined-Not determined-(general)-(general)-Unknown/Not determined - C

Verbatim from NTSB's published report. Source file NTSB_2010_CEN10CA258.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.