# NTSB LAX08LA304: Beech N35, N931B, The Dalles, OR, July 10, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 10, 2008, 15:00 local (22:00 UTC) - Place: The Dalles, OR - Coordinates: 45.61861, -121.167221 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=45.6186&lon=-121.1672&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Landing gear collapse](https://openairdocs.org/ntsb-events/094) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report July 14, 2009 - Report: Approved by Office Director - Parties: Federal Aviation Administration FSDO - NTSB case key (mKey): 69511 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX08LA304 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/69511/pdf - Page: https://openairdocs.org/ntsb/LAX08LA304 ## Probable cause A collapse of the right main landing gear for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: main landing gear](https://openairdocs.org/ntsb-findings/01023210): Aircraft › Aircraft systems · Not specified (probable cause); cases with it: [Beech N35, 1 case](https://openairdocs.org/ntsb-findings/01023210/cases.md?model=1151528), [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md) - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Beech N35, 3 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=1151528), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event); cases with it: [Beech N35, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=1151528), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The accident was not reported to the NTSB or the FAA until 5 months after the event and the airplane had been repaired. According to the pilot, he was landing on runway 30 with winds from 350 degrees at 12 knots, gusting to 16 knots. The right wing continued to settle during the rollout and contacted the runway. The airplane veered to the right, and the airplane departed the runway surface. The pilot noted that the right main landing gear had collapsed after he exited the airplane. The nose and left main landing gear remained down and locked. The damage was limited to the wing tip, flap, aileron, the step, and the inner gear door. Mechanics replaced the damaged parts, and cycled the landing gear numerous times. They did not find any problems with the operating or warning systems. ## Factual narrative On July 10, 2008, about 1500 Pacific daylight time, a Beech N35, N931B, veered of the runway during landing at Columbia Gorge Regional Airport, The Dalles, Oregon. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The private pilot was not injured; the airplane sustained substantial damage to the right aileron. The cross-country personal flight departed Spokane, Washington, about 1330 with a planned destination of The Dalles. Visual meteorological conditions prevailed, and no flight plan had been filed. The Safety Board was not notified of the accident until November 21, 2008, and the pilot did not submit a Pilot/Operator Aircraft Accident/Incident Report (Form 6120.1). The pilot reported to the Federal Aviation Administration (FAA) that he was landing on runway 30. The winds were from 350 degrees at 12 knots gusting to 16 knots. He said that he landed on the runway centerline passed the runway threshold. The right wing continued to settle during the rollout and contacted the runway. The airplane veered to the right, and departed the runway surface. It came to rest one full plane length off the runway, and perpendicular to the runway. The pilot exited the airplane, and noted that the right main landing gear had collapsed. Post crash examination revealed that the right aileron sustained structural damage. The owner of the maintenance facility that repaired the airplane described the damage, which was initiated prior to notification of the Safety Board. He stated that the nose and left main landing gear remained down and locked with no damage to the gear or doors. The right main landing gear collapsed inboard. The inner gear door was scraped on the bottom edge. His mechanics changed the inner gear door, wing tip, aileron, flap, and step. They cycled the landing gear numerous times, and did not find any problems with the operating or warning systems. ## Aircraft - Registration: [N931B](https://openairdocs.org/aircraft/N931B), registered now, S/N D-6792, built 1961 (OpenAirDocs) - Reported make and model: BEECH N35 - Registry model: [Beech N35](https://openairdocs.org/model/beech-n35) (registry code 1151528) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: D-6792 - Engines: Teledyne Continental Motors IO-470-N 260 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Lance A. Waugh - Registered owner: Lance A. Waugh - Airworthiness certificate: Unknown - Departed: SFF, Spokane, WA - Destination: KDLS, The Dalles, OR - Airport: KDLS, The Dalles Municipal, runway 30, 5,097 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 48; injuries: none; private; airplane ratings: single-engine land, multi-engine land; medical: class 3, with waivers/limitations; seat: left; flight hours: 201 total, 25 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 350° at 12 knots, gusting 16 - Visibility: 10 statute miles - Lowest ceiling: none - Altimeter: 30.00 inHg - Observed at: KDLS ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20080710851309A](https://openairdocs.org/incident/20080710851309A), Jul 10, 2008: Beech N35, The Dalles, OR, Substantial damage. (-23) Pilot [privacy data omitted] after cross country flight for spokane (geg) to home base airport The Dalles (dls) was landing on runway 30. Winds at the… ## Other investigations on N931B (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB UNK64X2250](https://openairdocs.org/ntsb/UNK64X2250), Jun 12, 1964: Beechcraft N35 (N931B), Odessa, TX, substantial damage From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.