- Date
- September 26, 2010, 15:50 local (20:50 UTC)
- Place
- Boerne Stage, TX
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N550JWCessna 310K
- Defining event
- Landing: Landing gear not configured
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 19, 2011
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA Flight Standards District Office
- FAA report
- 20100926047739A
- Case key
- 77417
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 pilot’s failure to ensure that the landing gear was extended prior to landing, resulting in a landing on the partially extended landing gear.
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 stated that he used the checklist and placed the landing gear handle in the “down” position, but did not check the annunciator lights. During landing, the gear collapsed. Postaccident examination of the airplane revealed that the landing gear circuit breaker had opened. Runway scrapes showed all three gears were partially extended when the airplane touched down, indicative that the gear extension was in progress when the wheels touched the runway. The airplane was placed on jacks and the nose gear was pulled down by hand where it locked into position. The right main landing gear was also pulled down by hand and it locked in position. The left main landing gear could not be extended due to spar damage, but testing of the squat switch revealed no anomalies.
Factual narrative
On September 27, 2010, approximately 1550 central daylight time, a Cessna 310K, N550JW, registered to and operated by Urban Air, LLC, and piloted by an airline transport certificated pilot, was substantially damaged when it landed wheels up at Boerne Stage Field (5C1) Boerne Stage, Texas. Visual meteorological conditions (VMC) prevailed at the time of the accident. The personal flight was being conducted under the provisions of 14 Code of Federal Regulations (CFR) Part 91 without a flight plan. The pilot and passenger on board the airplane were not injured. The cross-country flight originated at La Porte Municipal Airport (T41), La Porte, Texas, approximately 1500, and was en route to Boerne Stage. The pilot was asked to complete and return NTSB Form 6120.1-2, Pilot-Operator Aircraft Accident Report. He never did. The following is based on what was reported by the Federal Aviation Administration (FAA) inspector who went to the accident site: The pilot said he used the checklist and placed the landing gear handle in the DOWN position, but he admitted he did not check the annunciator lights. He said the gear collapsed on landing. An FAA inspector examined the airplane and found the landing gear circuit breaker had opened. Runway scrapes indicated all three gears were partially extended. The airplane was placed on jacks, and the nose gear was pulled down by hand and it locked in position. The right main landing gear was also pulled down by hand and it locked in position. The left main landing gear could not be extended due to spar damage, but the squat switch tested normal.
Aircraft
- Registration
- N550JW
- Reported as
- Cessna 310K
- Category
- Airplane
- Serial number
- 310K0050
- Engine
- Continental IO-470-V, 260 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Urban Air LLC
- Registered owner
- Urban Air LLC
- Airworthiness certificate
- Standard, Normal
- Departed
- T41 · La Porte, TX
- Destination
- 5C1 · Boerne Stage, TX
- Airport
- 5C1 · Boerne Stage Field, runway 17, 3,940 × 36 ft, asphalt
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
- Injuries
- None
- Certificates
- Commercial, Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Seat
- Left
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 20° at 7 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 25,000 ft overcast
- Temperature
- 84 °F, dew point 63 °F
- Altimeter
- 29.92 inHg
- Observed at
- SAT
Docket · 2
The files NTSB released with the investigation on March 9, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 86 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.