# NTSB DEN00LA024: Cessna 305A, N5245G, Akron, CO, December 3, 1999 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 3, 1999, 14:40 local (21:40 UTC) - Place: Akron, CO - Coordinates: 39.730648, -104.919441 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.7306&lon=-104.9194&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report November 30, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 47888 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN00LA024 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/47888/pdf - Page: https://openairdocs.org/ntsb/DEN00LA024 ## Probable cause The failure of the four bolts which attach the right main landing gear assembly to the landing gear strut. ## Analysis The pilot said that he was landing on runway 11, and the wind was 010 degrees at 18 knots, gusting to 27 knots. He said that he applied 'screeching' right brake to maintain directional control, and subsequently the right main landing gear assembly separated from the airplane. The airplane settled onto its right wing as the airplane turned left into the wind. Postaccident examination of the wheel assembly, by the pilot, revealed that all four wheel assembly attachment bolts had sheared. ## Factual narrative On December 3, 1999, approximately 1440 mountain standard time, a Cessna 305A (L-19 Birddog), N5245G, was substantially damaged during landing at Akron-Washington County Airport, Akron, Colorado. The commercial pilot, the sole occupant on board, was not injured. The aircraft was being operated under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the cross-country flight which originated from Burlington, Colorado, approximately one hour before the accident. No flight plan had been filed. The pilot said that he was landing on runway 11, and the wind was 010 degrees at 18 knots, gusting to 27 knots. He said that he applied "screeching" right brake to maintain directional control, and subsequently the right main wheel landing gear assembly separated from the airplane. He said that the right "gear leg promptly went away," and the airplane settled onto its right wing as the airplane turned left into the wind. Additionally, the right main landing gear box was damaged, the right outboard wing spar was bent, and the right aileron was damaged. Postaccident examination of the wheel assembly, by the pilot, revealed that all four wheel assembly attachment bolts had sheared. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, landing - roll - landing gear,main gear - failure,total (cause) - Loss of control - on ground/water, landing - roll - aircraft control - not possible, pilot in command ## Aircraft - Registration: [N5245G](https://openairdocs.org/deregistered/N5245G-2000-06-06), registration cancelled 2000-06-06, S/N 21327 (OpenAirDocs) - Reported make and model: Cessna 305A - Registry model: [Cessna 305A](https://openairdocs.org/model/cessna-305a) (registry code 2074002) (OpenAirDocs) - Category: Airplane - Serial number: 21327 - Airframe hours: 8631 - Engines: Continental O-470-11-B 235 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Micholas M. Saum - Airworthiness certificate: Standard, Normal - Last inspection: Annual, June 18, 1999, 350 hours before - Departed: ITR, BURLINGTON, CO - Destination: AKO - Airport: AKO, Akron/Washington County, runway 11, 7,000 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 5,320 total, 1,431 in this make and model, 178 in the last 90 days, 13 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 20° at 20 knots, gusting 26 - Visibility: 10 statute miles - Lowest ceiling: 2,500 ft overcast - Temperature: 37 °F, dew point 27 °F - Altimeter: 29.00 inHg - Observed at: AKO ## 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 19991203042929A](https://openairdocs.org/incident/19991203042929A), Dec 3, 1999: Akron, CO, No damage. (-23)Landing in high winds on rwy 11 the pilot lost directional control. A/c experienced a partial ground loop. Right wheel failed followed by right wheel… ## Other investigations on N5245G (3) 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 NYC98LA181](https://openairdocs.org/ntsb/NYC98LA181), Sep 5, 1998: Cessna 305A (N5245G), Louisville, KY, substantial damage. Probable cause: The pilot's improper inflight decision, and his failure to maintain adequate airspeed which resulted in a stall. - [NTSB FTW96LA172](https://openairdocs.org/ntsb/FTW96LA172), Apr 17, 1996: Cessna 305A (N5245G), Erie, CO, substantial damage. Probable cause: entanglement of the tow banner during banner pickup, and subsequent failure or inability to jettison the banner. A factor relating to the accident was: high gusty wind condition. - [NTSB DEN88LA052](https://openairdocs.org/ntsb/DEN88LA052), Jan 10, 1988: Cessna 305A (N5245G), Littleton, CO, substantial damage 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.