Summary
On July 30, 1997, a Boeing B75N1 (N75939) was involved in an incident near Lone Rock, WI. All 1 person aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: A locked right brake which resulted in the pilot's inability to maintain direction control of the airplane during the landing roll.
On July 30, 1997, at 1600 central daylight time (cdt), a Boeing B75N1, N75939, operated by a commercial pilot collided with the terrain following a loss of control while landing at the Tri- County Regional Airport, Lone Rock, Wisconsin. The airplane was substantially damaged. The pilot was not injured. Visual meteorological conditions prevailed and it is unknown if a flight plan was filed. The airplane departed from Norman, Oklahoma, at 0630 cdt.
The pilot reported that during the landing roll the airplane veered "uncontrollably" to the right. During the turn the left wing contacted the ground.
This incident is documented in NTSB report CHI97LA242. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N75939.
Accident Details
Probable Cause and Findings
a locked right brake which resulted in the pilot's inability to maintain direction control of the airplane during the landing roll.
Aircraft Information
Registered Owner (Current)
Analysis
On July 30, 1997, at 1600 central daylight time (cdt), a Boeing B75N1, N75939, operated by a commercial pilot collided with the terrain following a loss of control while landing at the Tri- County Regional Airport, Lone Rock, Wisconsin. The airplane was substantially damaged. The pilot was not injured. Visual meteorological conditions prevailed and it is unknown if a flight plan was filed. The airplane departed from Norman, Oklahoma, at 0630 cdt.
The pilot reported that during the landing roll the airplane veered "uncontrollably" to the right. During the turn the left wing contacted the ground. The airplane continued the turn until it came to rest on its nose, 180 degrees opposite the landing direction.
Post accident inspection of the airplane by a Federal Aviation Administration Airworthiness Inspector revealed the crankcase breather tube was routed down the right main landing gear strut thus allowing oil residue to contaminate the right brake.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI97LA242