- Date
- May 5, 2019, 08:20 local (15:20 UTC)
- Place
- Minden, NV
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N1510SBeech 35
- Defining event
- Landing-flare/touchdown: Landing gear not configured
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20190505004049A
- Case key
- 99400
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
A partial extension of the landing gear due to the poor condition of the electric landing gear motor, which resulted in a gear collapse upon landing.
Findings · 1
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 reported that the approach for landing was uneventful, and he selected the landing gear lever to the extended position. When the airplane touched down, the landing gear collapsed. The landing gear circuit breaker was found in the out position during postaccident examination. The airplane was placed on jacks and a gear swing test was conducted. During the test, the electric motor that drove the landing gear was noted to be "weak"; gear retraction was slow and the gear would only partially extend. No other anomalies in the landing gear system were noted. The cockpit landing gear lever, landing gear indications, and warning audio functioned properly during the test; thus, the pilot should have been alerted to the partial extension of the landing gear.
Factual narrative
On May 5, 2019, about 0820 Pacific daylight time, a Beech P35, N1510S, was substantially damaged when it was involved in an accident at Minden-Tahoe Airport (MEV), Minden, Nevada. The private pilot was not injured. The airplane was operated by the pilot as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that the approach was uneventful, and he selected the landing gear lever to the down position. When the airplane touched down, the landing gear collapsed. Postaccident examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed substantial damage to its underside. Additionally, the landing gear circuit breaker was observed to be in the out position. At a later date, the airplane was further examined by an airframe and powerplant mechanic under the oversight of a FAA inspector. The airplane was placed on jacks and a landing gear swing was accomplished. The electrical motor that drove the landing gear to the extended and retracted position, was noted to be extremely weak and degraded. The motor would take an excessive time to retract and extend the gear. Furthermore, during gear extension, the gear would only partially extend. No other anomalies in the landing gear system were noted. The cockpit landing gear lever, landing gear indications, and warning audio were properly functioning.
Aircraft
- Registration
- N1510S
- Reported as
- Beech 35 (P35)
- Category
- Airplane
- Serial number
- D-6940
- Built
- 1962
- Airframe hours
- 1,793
- Engine
- Continental IO-470, 260 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · March 11, 2019
- Departed
- E79 · Fresno, CA
- Destination
- MEV · Minden, NV
- Airport
- MEV · Minden-Tahoe, runway 34, 7,399 × 100 ft, asphalt
- Equipment
- Stall warning system, Electronic flight bag or handheld device, Auto-pilot
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
- 75
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine sea, Single-engine land
- Medical
- Class 3, Without waivers/limitations
- Last flight review
- May 12, 2018
- Seat
- Left
- Flight hours
- 2,052 total · 52.7 in this make and model · 2,052 as pilot in command · 5 in the last 90 days · 5 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 240° at 3 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 50 °F, dew point 36 °F
- Altimeter
- 29.89 inHg
- Observed at
- KMEV
Docket · 2
The files NTSB released with the investigation on October 9, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 522 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.