# NTSB LAX00LA064: Beech 65-80, N184R, Mesa, AZ, December 26, 1999 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 26, 1999, 12:42 local (19:42 UTC) - Place: Mesa, AZ - Coordinates: 33.439331, -111.849563 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.4393&lon=-111.8496&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report December 14, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 48420 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX00LA064 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/48420/pdf - Page: https://openairdocs.org/ntsb/LAX00LA064 ## Probable cause The collapse of a main landing gear due to damage from a hard landing at an undetermined time. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Hard landing, landing - flare/touchdown - landing gear,normal retraction/extension assembly - overload (cause) - aircraft handling - improper, unknown (cause) - Gear collapsed, landing - roll - landing gear,normal retraction/extension assembly - separation ## Analysis Following completion of an annual inspection, the pilot took off for a local area flight. The pilot performed one takeoff and landing. Then, during the landing gear retraction process on the next takeoff, the pilot observed a cockpit indication that the left main landing gear did not normally retract. No "up lock" light illuminated. In an effort at remedying the situation, the landing gear circuit breaker was pulled. Then, the hand pump was utilized to manually extend the gear. Following this effort, only two green landing gear position lights illuminated. The pilot stated he informed the control tower that he would be landing with an unsafe gear indication. After landing and rolling between 80 and 100 feet, the left main gear collapsed. As the airplane slid to a stop it veered into a taxi light and onto the dirt clearway. An FAA inspector examined the airplane and found the left gear's actuator shaft was broken in half, and the knuckle attachment bolts had been "pulled out" of the structure. No evidence of any preexisting defect or malfunction in the gear assembly was observed. The noted evidence was consistent with the airplane having been subjected to a hard landing. However, the date(s) for the occurrence could not be determined. ## Factual narrative On December 26, 1999, about 1242 hours mountain standard time, a Beech 65-80, N184R, owned and operated by the pilot, experienced the collapse of its left main landing gear during landing rollout at Falcon Field, Mesa, Arizona. Visual meteorological conditions prevailed during the personal flight, and no flight plan was filed. The flight was performed under the provisions of 14 CFR Part 91. The airplane was substantially damaged, and neither the pilot nor the two passengers was injured. The flight originated from Mesa about 1220. In pertinent part, the pilot reported to the National Transportation Safety Board investigator that this was the first flight following the airplane's annual inspection. One uneventful takeoff and landing was performed. During the landing gear retraction process on the next takeoff, the pilot observed a cockpit indication that the left main landing gear did not normally retract. No "up lock" light illuminated. The pilot further reported that, in an effort at remedying the situation, the landing gear circuit breaker was pulled. Then, the hand pump was utilized to manually extend the gear. Following this effort, only two green landing gear position lights illuminated. The pilot stated he informed the control tower that he would be landing with an unsafe gear indication. After landing and rolling between 80 and 100 feet, the left main gear collapsed. As the airplane slid to a stop it veered into a taxi light and onto the dirt clearway. The Federal Aviation Administration (FAA) coordinator verbally reported to the Safety Board investigator that upon examination of the airplane the left gear's actuator shaft was observed broken in half, and the associated knuckle attachment bolts had been "pulled out" of the structure. No evidence of preexisting malfunction, corrosion, or other defect was noted in this area of the landing gear assembly. The FAA further indicated that although the observed overload-type failure appeared consistent with the airplane having been subjected to a hard landing at some time during its operation, no specific date(s) was determined for the occurrence. ## Aircraft - Registration: [N184R](https://openairdocs.org/deregistered/N184R-2002-07-22), registration cancelled 2002-07-22, S/N LD-54, built 1963 (OpenAirDocs) - Reported make and model: Beech 65-80 - Registry model: [Beech 65-80](https://openairdocs.org/model/beech-65-80) (registry code 1152806) (OpenAirDocs) - Registry engine: [Lycoming IGSO-540-B1A](https://openairdocs.org/engine/lycoming-igso-540-b1a) (registry code 41535, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: DL-54 - Airframe hours: 3451 - Engines: Lycoming IGSO-540-A1A 380 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Harry Hawkins - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 21, 1999, 1 hours before - Departed: IWA, PHOENIX, AZ - Destination: FFZ - Airport: FFZ, Falcon Field, runway 4R, 5,102 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 58; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,462 total, 21 in this make and model, 1,400 as pilot in command, 18 in the last 90 days, 18 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 5 knots - Visibility: 10 statute miles - Lowest ceiling: 25,000 ft broken - Temperature: 151 °F, dew point 97 °F - Altimeter: 30.00 inHg - Observed at: PHX, 15 nm away ## 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 19991226037189A](https://openairdocs.org/incident/19991226037189A), Dec 26, 1999: Beech 6580, Mesa, AZ, Substantial damage. (.19) On December 26, 1999, about 1242 hours mountain standard time, a Beech 65-80, N184R, owned and operated by the pilot, experienced the collapse of its… 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.