# NTSB FTW99LA079: Miller/Bell TR-1, N9194X, Hiwasse, AR, February 8, 1999 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: February 8, 1999, 17:20 local (23:20 UTC) - Place: Hiwasse, AR - Coordinates: 36.429698, -94.329307 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=36.4297&lon=-94.3293&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report April 25, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 45765 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW99LA079 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/45765/pdf - Page: https://openairdocs.org/ntsb/FTW99LA079 ## Probable cause The pilot's inadequate compensation for prevailing wind conditions. Factors were the crosswind, the lack of suitable terrain, and the separation of the adell clamp for the oil cooler inlet line. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, cruise - miscellaneous,bolt/nut/fastener/clamp/spring - separation (contributing factor) - lubricating system,oil line - leak - Forced landing, emergency descent/landing - precautionary landing - attempted, pilot in command - Loss of control - in flight, landing - flare/touchdown - weather condition - crosswind (contributing factor) - compensation for wind conditions - inadequate, pilot in command (cause) - In flight collision with object, landing - flare/touchdown - terrain condition - none suitable (contributing factor) - object - building(nonresidential) ## Analysis The aircraft collided with a hog-house during a precautionary landing after the engine oil pressure dropped to zero. The pilot set up for a landing in an east-west oriented field; however, the wind was from the south at 12 knots gusting to 20 knots. During the landing flare, the wind pushed the airplane into the side of a poultry house, resulting in the aircraft spinning around and coming to rest in the field. The pilot inspected the engine compartment and found that the adell clamp on the oil-cooler inlet line had 'separated' allowing the engine oil to drain out. ## Factual narrative On February 8, 1999, approximately 1720 central standard time, a Miller/Bell TR-1 amateur-built experimental airplane, N9194X, was substantially damaged when it impacted a building during a precautionary landing near Hiwasse, Arkansas. The private pilot and his passenger, who were the builders and owners of the airplane, were not injured. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations (CFR) Part 91 local flight, which originated from Smith Field, Siloam Springs, Arkansas, approximately 1635. According to the enclosed Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), and telephone interviews conducted by the investigator-in-charge, the pilot stated that approximately 45 minutes into the flight he heard the engine noise change. The pilot then checked the oil pressure, which indicated zero. After reducing engine power, the pilot elected to make a precautionary landing on a road adjacent to a field and a hog-house. The pilot stated that the winds were from the south; however, the road ran along an east-west heading. According to the pilot, during the landing flare, the wind pushed the aircraft into the side of the hog-house. The aircraft's right wing scraped the side of hog-house causing the airplane to spin around and impact a three foot extension of the building. At 1139, the Northwest Arkansas Regional Airport weather observation facility, which is approximately 15 miles northeast of the accident site, was reporting the wind from 180 degrees at 12 knots gusting to 20 knots. The FAA inspector reported that the left wing spar was damaged and the nose gear collapsed. According to the pilot, upon inspection of the aircraft following the accident, he noticed that the adell clamp for the oil cooler inlet line had "separated," which allowed the oil to spill overboard. The airplane had accumulated a total of 41 hours since its original airworthiness inspection dated April 17,1998. ## Aircraft - Registration: [N9194X](https://openairdocs.org/deregistered/N9194X-1999-03-25), registration cancelled 1999-03-25, S/N 088 (OpenAirDocs) - Reported make and model: MILLER/BELL TR-1 - Registry model: [Miller B R/Bell D G TR-1](https://openairdocs.org/model/miller-b-r-bell-d-g-tr-1) (registry code 05603UQ) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 088 - Airframe hours: 41 - Engines: Lycoming O-235-C2C 108 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Bobby R. Miller - Registered owner: Orville And Wilbur Airplane Co - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, April 17, 1998, 41 hours before - Departed: SLG, SILOAM SPRINGS, AR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 560 total, 41 in this make and model, 530 as pilot in command, 1 in the last 90 days, 1 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 12 knots, gusting 20 - Visibility: 15 statute miles - Lowest ceiling: none - Temperature: 61 °F, dew point 46 °F - Altimeter: 29.00 inHg - Observed at: XNA, 15 nm away 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.