# NTSB MIA06LA086: Cessna 310K, N6981L, Brooksville, FL, April 12, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: April 12, 2006, 17:45 local (21:45 UTC) - Place: Brooksville, FL - Coordinates: 28.470832, -82.455558 - Nearby events: https://openairdocs.org/map.md?lat=28.4708&lon=-82.4556&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 4 uninjured - Status: Completed, report July 25, 2007 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 63548 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA06LA086 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/63548/pdf - Page: https://openairdocs.org/ntsb/MIA06LA086 ## Probable cause The mechanic's improper maintenance that resulted in the right main landing gear's separation from the airplane and an inadvertent loss of control during landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - roll - maintenance - improper, other maintenance personnel (cause) - landing gear,main gear - separation - aircraft control - not possible, pilot in command - ground loop/swerve - inadvertent, pilot in command ## Analysis The pilot stated that during the landing rollout, the airplane pulled to the right, and he made a correction, but it continued to pull to the right. As the rollout progressed, he said the airplane continued to pull to the right, with him using full rudder deflection. The airplane departed the right side of the runway, into the grass, and impacted orange trees. An FAA inspector responded and conducted a postcrash examination of the airplane and found the airplane sitting on its left main landing gear and nose gear. The right main landing gear had separated from the airplane. The inspector further stated that upon examining the right main landing gear the he noted a discrepancy associated with the forward trunnion. He said that the forward and aft trunnions both have two u-bolts that hold the landing hear to the pivot points on the airplane, and the aft trunnion had both u-bolts and had the pivot piece firmly locked under the u-bolts. The inspector said that on the forward trunnion the aft u-bolt was in place but the forward u-bolt was missing, and the pivot piece was not under the aft u-bolt. During the course of the investigation, the pilot provided an excerpt from the airplane maintenance records showing that the airplane's right main landing gear had been recently repaired. At the time of the accident, the airplane had accumulate about 9 hours since landing gear maintenance had been performed. ## Factual narrative On April 12, 2006, about 1745 eastern daylight time, a Cessna 310K, N6981L, registered to and operated by a private individual, as a Title 14 CFR Part 91 flight, veered off the runway during landing at Brooksville, Florida. Visual meteorological conditions prevailed, and no flight plan was filed. The private-rated pilot and three passengers were not injured, and the airplane incurred substantial damage. The flight originated in Knoxville, Tennessee, the same day, about 1445. The pilot stated that during the landing rollout, the airplane pulled to the right, and he made a correction, but it continued to pull to the right. He said as the rollout progressed it continued to pull to the right, with him using full rudder deflection. The airplane then departed the right side of the runway, into the grass, and impacted some orange trees near a house. An FAA inspector responded and conducted a postcrash examination of the airplane. According to the inspector, when he viewed the airplane it was sitting on its left main landing gear and nose gear, and the right main landing gear had separated from the airplane. He further stated that upon examining the right main landing gear the he noted a discrepancy associated with the forward trunnion. He said that the forward and aft trunnions both have two u-bolts that hold the landing hear to the pivot points on the airplane, and the aft trunnion had both u-bolts and had the pivot piece firmly locked under the u-bolts. He said on the forward trunnion the aft u-bolt was in place but the forward u-bolt was missing, and the pivot piece was not under the aft u-bolt. The pilot provided an excerpt from the airplane maintenance records which showed that the accident airplane's right main landing gear had been recently repaired. According to the pilot, at the time of the accident the airplane had accumulate about 9 hours since landing gear maintenance had been performed. ## Aircraft - Registration: [N6981L](https://openairdocs.org/deregistered/N6981L-2012-11-09), registration cancelled 2012-11-09, S/N 310K0081, built 1966 (OpenAirDocs) - Reported make and model: Cessna 310K - Registry model: [Cessna 310K](https://openairdocs.org/model/cessna-310k) (registry code 2074228) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 310K0081 - Airframe hours: 5500 - Engines: Teledyne Continental IO-470 260 horsepower reciprocating; Teledyne Continental IO-470 260 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Joseph Karl - Airworthiness certificate: Standard, Normal - Departed: DKX, Knoxville, TN - Destination: X05, Brooksville, FL - Airport: X05, Pilot Country Airport, runway 18, 3,700 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 56; injuries: none; private; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 3; seat: left; flight hours: 2,600 total, 85 in this make and model, 2,600 as pilot in command, 6 in the last 90 days, 5 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 70° at 11 knots, gusting 17 - Visibility: 9 statute miles - Lowest ceiling: 9,000 ft broken - Temperature: 79 °F, dew point 55 °F - Altimeter: 30.17 inHg - Observed at: TPA ## 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 20060412009589A](https://openairdocs.org/incident/20060412009589A), Apr 12, 2006: Cessna 310K, Brooksville, FL, Substantial damage. (-23) On April 12, 2006, at 1945 local time a Cessna 310, registered to the Pilot [privacy data omitted] landed at Pilot Country Airport (X05) in spring hill,… 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.