# NTSB LAX00LA188: Cessna 310Q, N7648Q, Mesa, AZ, May 9, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 9, 2000, 09:30 local (16:30 UTC) - Place: Mesa, AZ - Coordinates: 33.460834, -111.728332 - Nearby events: https://openairdocs.org/map.md?lat=33.4608&lon=-111.7283&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 28, 2004 - Report: Approved by Office Director - Parties: Federal Aviation Adminstration - NTSB case key (mKey): 49154 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX00LA188 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/49154/pdf - Page: https://openairdocs.org/ntsb/LAX00LA188 ## Probable cause the overload fracture and separation of the right main landing gear attachment. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Main gear collapsed, landing - roll - landing gear,main gear attachment - overload (cause) - landing gear,main gear attachment - separation (cause) ## Analysis The airplane experienced a right main landing gear collapse during landing roll. During the landing rollout, the pilot eased back pressure on the control yoke and retracted the wing flaps. Upon application of brake pressure, the right main landing gear collapsed. The right wing dropped, resulting in the airplane veering to the right. The airplane continued to the right, off the runway, and came to rest in a dirt field. The Safety Board materials laboratory examined the failed right main landing gear attachment and determined that it fractured in overload. ## Factual narrative On May 9, 2000, about 0935 mountain standard time, a Cessna 310Q, N7648Q, experienced a right main landing gear collapse during landing roll at Falcon Field Airport, Mesa, Arizona. Perez Electric, Inc., was operating the airplane under the provisions of 14 CFR Part 91. The private pilot, the sole occupant, was not injured; the airplane sustained substantial damage. The personal cross-country flight departed from Brackett Field, La Verne, California, about 0740 with a planned destination of Falcon Field. Visual meteorological conditions prevailed, and a flight plan had not been filed. In a written statement, the pilot reported that he performed a normal approach and landing on runway 22L. During the landing rollout, he eased back pressure on the control yoke and retracted the wing flaps. Upon application of brake pressure, the right main landing gear collapsed. The right wing dropped, resulting in the airplane veering to the right. The airplane continued to the right, off the runway, and came to rest in a dirt field. The airplane incurred damage to the right wing and horizontal stabilizer. The Safety Board's Materials Laboratory examined the right main landing gear attachment. The materials specialist stated that the threaded rod/bolt fractured in overstress. The part had a classical "cup-cone" shape with shear lips at the edges and adjacent threads were also cracked. The nut side was deformed and flattened as was the mating corner of the opposite piece. ## Aircraft - Registration: [N7648Q](https://openairdocs.org/deregistered/N7648Q-2002-03-04), registration cancelled 2002-03-04, S/N 310Q0427, built 1971 (OpenAirDocs) - Reported make and model: Cessna 310Q - Registry model: [Cessna 310Q](https://openairdocs.org/model/cessna-310q) (registry code 2074242) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 31000427 - Engines: Continental IO-470V 260 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Perez Electric, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 2, 2000 - Departed: POC, LA VERNE, CA - Destination: FFZ, MESA, AZ - Airport: FFZ, Falcon Field, runway 22L, 5,102 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 69; injuries: none; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; last flight review August 26, 1998; seat: left; flight hours: 6,500 total, 1,500 in this make and model, 6,300 as pilot in command, 90 in the last 90 days, 12 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 200° at 8 knots - Visibility: 30 statute miles - Lowest ceiling: none - Temperature: 86 °F, dew point 48 °F - Altimeter: 29.00 inHg - Observed at: FFZ ## 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 20000509010799A](https://openairdocs.org/incident/20000509010799A), May 9, 2000: Cessna 310Q, Mesa, AZ, No damage. (-23) Mr. Perez stated that he was on a normal approach into Falcon field, AZ. He was landing on runway 22 left when he touched down with no problem, then when… ## Other investigations on N7648Q (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 ATL02FA010](https://openairdocs.org/ntsb/ATL02FA010), Nov 7, 2001: Cessna 310Q (N7648Q), Winston Salem, NC, destroyed, 1 fatal. Probable cause: Improper installation of the elevator trim tab control rod by maintenance personnel which allowed the control rod to disconnect and jam in the full up position (elevator full down) while in-flight.… 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.