# NTSB CHI06LA278: Piper PA-18A-150, N9779D, Lawrenceville, IL, June 15, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 15, 2006, 13:30 local (18:30 UTC) - Place: Lawrenceville, IL - Coordinates: 38.773612, -87.609169 - Nearby events: https://openairdocs.org/map.md?lat=38.7736&lon=-87.6092&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 29, 2007 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 64887 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI06LA278 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64887/pdf - Page: https://openairdocs.org/ntsb/CHI06LA278 ## Probable cause The visual separation from the glider attempted by the tow pilot and traffic advisories from the glider not received by the tow pilot. The airport sign/marker was a contributing factor. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water collision with object, landing - roll - object - airport sign/marker (contributing factor) - visual separation - attempted, pilot in command (cause) - traffic advisory - not received, pilot in command (cause) ## Analysis The tow airplane was returning to the uncontrolled airport after releasing a glider that was operated by a soaring club. The pilot of the tow airplane stated that he entered the traffic pattern to land on runway 27 and saw another aircraft taking off from runway 27. The pilot of the tow airplane decided to continue the approach and to land on the grass next to runway 27. After he touched down, he observed a glider attempting to land in the opposite direction. The glider pilot appeared to overshoot the centerline and was heading for the tow airplane. The tow airplane pilot turned right towards the runway to avoid the glider, but the glider turned towards him. The tow airplane pilot turned back to the left and impacted a runway sign. According to the Airport Facility Directory, runway 27 had the same traffic pattern for engine-driven aircraft and gliders. The tow pilot stated that he did not hear any radio transmissions from the glider on the LWV common traffic advisory frequency. ## Factual narrative On June 15, 2006, about 1330 central daylight time, a Piper PA-18A-150, N9779D, operated by Wabash Valley Soaring Association Inc., received substantial damage on impact with a runway sign during landing rollout at Lawrenceville-Vincennes International Airport, Lawrenceville (LWV), Illinois. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 personal flight was not operating on a flight plan. The commercial pilot received no injuries. The flight originated from LWV at an unknown time. The pilot stated that he was participating in glider tow operations at the airport that day. During the accident flight, he released the glider he was towing over the airport, flew south of the airport to lose altitude, and entered the traffic pattern for landing on runway 27 (5,198 feet by 150 feet, asphalt). He observed another aircraft taking off from runway 27 and decided to land on the grass next to the runway. During his rollout, he observed a glider approaching the airport from the north which appeared to be landing in the opposite direction. The glider appeared to overshoot the runway centerline and was headed for the accident airplane. The pilot turned right towards the runway to avoid the glider, but the glider "turned or corrected" towards him. The pilot reported turning back to the left to get out of the glider's way when he impacted the runway sign. The tow pilot stated that he did not hear any radio transmissions from the glider on the LWV common traffic advisory frequency. According to the Airport Facility Directory, runway 27 had the same traffic pattern for engine-driven aircraft and gliders. ## Aircraft - Registration: [N9779D](https://openairdocs.org/aircraft/N9779D), registered now, S/N 18-6848 (OpenAirDocs) - Reported make and model: Piper PA-18A-150 - Registry model: [Piper PA-18A 150](https://openairdocs.org/model/piper-pa-18a-150) (registry code 7101837) (OpenAirDocs) - Category: Airplane - Serial number: 18-6848 - Engines: Lycoming O-320-A2A 150 horsepower reciprocating - Damage: Substantial damage - Flight: Glider tow, Part 91 - Registered owner: Wabash Valley Soaring Assoc Inc - Airworthiness certificate: Standard, Utility; Standard, Normal - Departed: LWV - Destination: LWV - Airport: LWV, Lawrenceville-Vincennes Intl, runway 27, 5,198 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 46; injuries: none; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review April 1, 2006; seat: single; flight hours: 15,000 total, 150 in this make and model, 10,000 as pilot in command, 300 in the last 90 days, 100 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 3 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 88 °F, dew point 55 °F - Altimeter: 30.12 inHg - Observed at: LWV ## 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 20060615028879A](https://openairdocs.org/incident/20060615028879A), Jun 15, 2006: Piper PA18A150, Lawrenceville, IL, Substantial damage. (-23) The pilot of a PA-18 aircraft landed on the grass adjacent to runway 27 at Lawrenceville, Illinois during glider operations and struck a taxilight on… 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.