# NTSB SEA98LA058: Cessna 195A, N1069D, Bend, OR, April 1, 1998 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: April 1, 1998, 15:40 local (23:40 UTC) - Place: Bend, OR - Coordinates: 44.069728, -121.249252 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.0697&lon=-121.2493&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report February 15, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 42771 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA98LA058 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42771/pdf - Page: https://openairdocs.org/ntsb/SEA98LA058 ## Probable cause Separation by fracture of the left main gear leg, as the result of fatigue cracks that initiated in corrosion pits on the gear leg surface. ## 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 - separation (cause) - landing gear,main gear - fractured (cause) - landing gear,main gear - fatigue (cause) - landing gear,main gear - corroded (cause) - landing gear,main gear - overload - Main gear collapsed, landing - roll ## Analysis During the landing roll, when the dual student allowed the tailwheel aircraft to drift too close to the right side of the runway, the instructor applied left rudder and left brake. As he took this corrective action, the left main gear leg fractured and separated from the aircraft. NTSB examination of the fracture surface revealed that two fatigue cracks had initiated in corrosion pits created where the gear leg rubbed against the gear leg clamping system. The two cracks eventually combined to become one, and when loads were applied during the landing roll, an overstress separation stemming from the fatigue fracture region occurred. ## Factual narrative On April 1, 1998, approximately 1540 Pacific standard time, the left main gear of a Cessna 195A, N1069D, separated from the aircraft during the landing roll at Bend Municipal Airport, Bend, Oregon. The certified flight instructor and his student, who is a private pilot, were not injured, but the aircraft, which was owned by the student, sustained substantial damage. The 14 CFR Part 91 instructional flight, which had been in the air for about 40 minutes, was being operated in visual meteorological conditions. No flight plan had been filed, and there was no report of an ELT transmission. According to the CFI, the student, who had recently purchased the aircraft, allowed the aircraft to drift toward the right edge of the runway during the landing roll. At the point where it looked like additional corrective action was necessary, the instructor took control and applied left brake and left rudder. At that point the left main gear leg fractured where it protrudes from the gear leg attach box. NTSB examination of the fracture surface revealed that two separate fatigue cracks had initiated in an area of corrosion generated by the gear leg rubbing on the gear leg clamping system. These two cracks had combined and formed a united crack front. When loads were applied to the gear leg during the landing roll, an overstress separation stemming from the fatigue fracture region occurred. ## Aircraft - Registration: [N1069D](https://openairdocs.org/aircraft/N1069D), registered now, S/N 7681, built 1951 (OpenAirDocs) - Reported make and model: Cessna 195A - Registry model: [Cessna 195A](https://openairdocs.org/model/cessna-195a) (registry code 2073110) (OpenAirDocs) - Registry engine: [Jacobs R755A series](https://openairdocs.org/engine/jacobs-r755a-series) (registry code 35006, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 7681 - Airframe hours: 2400 - Engines: Jacobs 755-A2 300 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Jerry W. Rozelle - Airworthiness certificate: Standard, Normal - Last inspection: Annual, September 3, 1997 - Departed: S07 - Airport: S07, Bend Municipal Airport, runway 34, 5,000 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 46; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 3,833 total, 200 in this make and model, 3,520 as pilot in command, 2 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 6 knots - Visibility: 20 statute miles - Lowest ceiling: none - Temperature: 61 °F ## 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 19980401005269A](https://openairdocs.org/incident/19980401005269A), Apr 1, 1998: Cessna 195A, Bend, OR, Substantial damage. Check out for new owner. Allowed 192 to veer to rwy edge. CFI corrected with hard oppsite braking. Left gear broke. (.4)during the landing roll, when the dual… 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.