Probable cause
The failure of the landing gear to extend during landing approach due to the interference between the landing gear motor's sector and worm gears.
NTSB analysis
The airplane experienced a gear-up landing after the private pilot was unable to extend the landing gear. Postaccident examination of the landing gear motor revealed that the sector gear teeth were partially sheared and were bound with the worm gear teeth, resulting in interference. Once the gear was turned past the sheared area, the assembly functioned with no anomalies. Review of maintenance logs revealed that the most recent annual inspection, which included the landing gear system, was completed about 6 months before the accident with no anomalies noted.
Text from the NTSB. Open the NTSB docket for CEN17LA091 for the full record.
Event
- Date
- Jan 18, 2017
- Type
- Accident
- Place
- Delta, Colorado
- Nearest airport
- Blake Field Airport (AJZ)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Beech 95-C55
- N-number
- N303QB
- Category
- Airplane
- Year built
- 1966
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.