# NTSB MIA00IA104: Beech 58, N225TA, Memphis, TN, March 14, 2000 - Type: NTSB incident investigation - Classification: Incident · No injuries · Incident investigation · Final report - Date: March 14, 2000, 16:20 local (22:20 UTC) - Place: Memphis, TN - Coordinates: 35.030788, -90.010543 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.0308&lon=-90.0105&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 6, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 48794 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA00IA104 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/48794/pdf - Page: https://openairdocs.org/ntsb/MIA00IA104 ## Probable cause failure of the right main landing gear's dynamic brake relay, that resulted in the motor driving the gearbox past prescribed limits, resulting in a bent connecting rod, and failure of the gear to extend. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Main gear collapsed, landing - roll - electrical system,electric relay - failure,total (cause) - landing gear,normal retraction/extension assembly - malfunction (cause) ## Analysis The pilot stated that during the landing rollout the right main landing gear collapsed, and the airplane exited the runway. Company maintenance personnel examined the right gear and found that a dynamic brake relay, which provides a momentary surge of reverse current to the right main landing gear for positive stopping was defective. This defective part allowed the motor to drive the gearbox past prescribed limits, inducing a bend into the right main landing gear connecting rod. Once gear down was selected, the rod was placed under a compression load, which caused it to bend even further, and not extend the gear. ## Factual narrative On March 14, 2000, about 1620 central standard time, a Beech 58, N225TA, registered to and operated by Flight Express Inc., as a Title 14 CFR Part 135 on demand air taxi flight, had a right main landing gear collapse during the landing rollout at Memphis International Airport, Memphis, Tennessee. Visual meteorological conditions prevailed and an instrument flight rules flight plan was filed. The aircraft received minor damage and the airline transport-rated pilot, the sole occupant, was not injured. The flight originated the same day from Fort Smith, Arkansas, about 1457. The pilot stated that after the flare, and during the landing rollout he felt the right wing begin to sink, and the airplane started to turn to the right. The pilot further stated that he pulled back on the yoke, and applied left aileron, and noted that he had a green landing gear light. He said he was about to apply power to go around, but he saw that the propeller was damaged, and seconds later the right wing contacted the runway. The airplane then exited the north side of the runway. According to an FAA inspector, company maintenance personnel examined the right main landing gear and found that a dynamic brake relay which provides a momentary surge of reverse current to the landing gear for positive stopping, once the gear has reached either a full up, or a full down position, was found to be defective. This defective part allowed the motor to drive the gearbox past prescribed limits, inducing a bend into the right main gear connecting rod. Once gear down had been selected, the rod had a compression load, which caused it to bend even further, and not extend the gear. ## Aircraft - Registration: [N225TA](https://openairdocs.org/aircraft/N225TA), registered now, S/N TH-64, built 1970 (OpenAirDocs) - Reported make and model: Beech 58 - Registry model: [Beech 58](https://openairdocs.org/model/beech-58) (registry code 1152740) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: TH-64 - Airframe hours: 4304 - Engines: Continental IO-520-CB7 285 horsepower reciprocating - Damage: Minor damage - Flight: Part 135 - Registered owner: Flight Express Inc. - Airworthiness certificate: Standard, Normal - Last inspection: AAIP, March 14, 2000, 3 hours before - Departed: FSM, FT. SMITH, AR - Destination: MEM - Flight plan: IFR - Airport: MEM, Memphis International, runway 27, 8,936 × 150 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 32; airline transport; airplane ratings: multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 2,960 total, 588 in this make and model, 2,608 as pilot in command, 345 in the last 90 days, 107 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 160° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: 25,000 ft overcast - Temperature: 68 °F - Altimeter: 30.00 inHg - Observed at: MEM ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Incident 20000314001999I](https://openairdocs.org/incident/20000314001999I), Mar 14, 2000: Beech 58, Memphis, TN, Minor damage. (-23) Pilot reported that upon landing on runway 27 at Memphis intl, the right main gear collapsed, causing the aircraft to veer off of the right side of the… 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.