# NTSB MIA01LA130: Cessna 210N, N6585A, Gainesville, FL, April 26, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: April 26, 2001, 13:15 local (17:15 UTC) - Place: Gainesville, FL - Coordinates: 29.69, -82.271667 - Nearby events: https://openairdocs.org/map.md?lat=29.6900&lon=-82.2717&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report May 30, 2003 - Report: Approved by Office Director - Parties: FAA Flight Standards District Office - NTSB case key (mKey): 52143 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA01LA130 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52143/pdf - Page: https://openairdocs.org/ntsb/MIA01LA130 ## Probable cause The pilot's delay in securing all non-essential electrical equipment in-flight resulting in battery depletion before complete gear extension was accomplished using the normal system and subsequent collapse of the main landing gear. A contributing factor in the accident was the inadequate manufacture of an electrical cable by company maintenance personnel resulting in separation of one end of the cable in-flight. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, cruise - normal - electrical system,electric wiring - separation - maintenance,replacement - inadequate, company maintenance personnel (contributing factor) - Airframe/component/system failure/malfunction, cruise - normal - in-flight planning/decision - delayed, pilot in command (cause) - electrical system,battery - discharged - Main gear collapsed, landing - flare/touchdown ## Analysis The first two legs were uneventful. The pilot stated that the flight departed on the third leg and approximately 15 minutes into the flight, he noted a problem with the airplane's radios. He attempted to troubleshoot the radio problem and checked the ammeter which indicated a slight discharge. He turned on all the aircraft's lights to see if the ammeter would change; it did not. He then secured all electrical equipment with the exception of the No. 1 communication transceiver and transponder. He checked the circuit breakers and reset the alternator switch; with negative results. He was cleared to land via a light signal from the tower and lowered the landing gear electrically. He reported hearing the landing gear motor operate, felt a sensation that he equated to was the landing gear locking into position, and looked out and thought that the main landing gear were locked into position; he could not see the gear down and locked light due to sunlight. After touchdown, the main landing gear collapsed; the nose landing gear did not collapse. Postaccident examination of the airplane revealed that the "A+" electrical cable which is connected to the alternator and a terminal block on the firewall was separated from the wire connector at the terminal block on the firewall. Further examination determined that the cable was locally manufactured and appeared to be too short which did not allow for vibration. ## Factual narrative On April 26, 2001, about 1315 eastern daylight time, a Cessna 210N, N6585A, registered to and operated by Air Carriers, Inc., as fast check flight 269, experienced collapse of the main landing gear during the landing roll at the Gainesville Regional Airport, Gainesville, Florida. Visual meteorological conditions prevailed at the time and an instrument flight rules (IFR) flight plan was filed for the 14 CFR Part 135 non-scheduled domestic cargo flight. The airplane was substantially damaged and the commercial-rated pilot, the sole occupant, was not injured. The flight originated at 1155 from the Hernando County Airport, Brooksville, Florida. The pilot stated that the first two legs in the accident airplane were uneventful. The flight departed on the third leg and approximately 15 minutes into the flight, he noted a problem with the airplane's radios. He attempted to troubleshoot the radio problem and checked the ammeter which indicated a slight discharge. He turned on all the aircraft's light to see if the ammeter would change; it did not. He then secured all electrical equipment with the exception of the No. 1 communication transceiver and transponder. He checked the circuit breakers and reset the alternator switch; with negative results. On approach to the destination airport he remained high and began to circle awaiting light gun signals from the tower. He received a signal that the flight was cleared to land and lowered the landing gear electrically. He reported hearing the landing gear motor operate, felt a sensation that he equated to was the landing gear locking into position, and looked out and thought that the main landing gear were locked into position; he could not see the gear down and locked light due to sunlight. After touchdown, the main landing gear collapsed; the nose landing gear did not collapse. Examination of the airplane by an Federal Aviation Administration (FAA) airworthiness inspector revealed that the "A+" electrical cable which is connected to the alternator and to a terminal board at the firewall, separated from the wire connector at the terminal board at the firewall. Further examination determined that the cable was locally manufactured and appeared to be too short which did not allow for vibration. A copy of the FAA inspector statement is an attachment to this report. ## Aircraft - Registration: [N6585A](https://openairdocs.org/deregistered/N6585A-2013-03-25), registration cancelled 2013-03-25, S/N 21063554, built 1979 (OpenAirDocs) - Reported make and model: Cessna 210N - Registry model: [Cessna 210N](https://openairdocs.org/model/cessna-210n) (registry code 2073453) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 21063554 - Airframe hours: 13999 - Engines: Continental IO-520-L 285 horsepower reciprocating - Damage: Substantial damage - Flight: Part 135 - Registered owner: Air Carriers, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, April 20, 2001, 5 hours before - Departed: BKV, Brooksville, FL - Destination: GNV, Gainesville, FL - Flight plan: IFR - Airport: KGNV, Gainesville Regional, runway 10, 7,501 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 36; injuries: none; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; last flight review January 13, 2001; seat: left; flight hours: 1,040 total ## Weather - Conditions: Visual (VMC), Day - Wind: 40° at 12 knots, gusting 18 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 72 °F, dew point 46 °F - Altimeter: 30.17 inHg - Observed at: GNV ## 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 20010426008839A](https://openairdocs.org/incident/20010426008839A), Apr 26, 2001: Cessna 210N, Gainesville, FL, Substantial damage. (-23)Enroute from broooksville (bvk) to gainsville (gnv) on IFR flight plan, actual weather VMC, radios started to slowly fade. At point beyond midway of… 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.