# NTSB CHI04LA202: Piper PA-24, N5769P, Rockville, IN, July 30, 2004 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: July 30, 2004, 18:00 local (23:00 UTC) - Place: Rockville, IN - Coordinates: 39.712501, -87.40139 - Nearby events: https://openairdocs.org/map.md?lat=39.7125&lon=-87.4014&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report March 30, 2005 - Report: Approved by Office Director - Parties: FAA - NTSB case key (mKey): 59803 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI04LA202 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/59803/pdf - Page: https://openairdocs.org/ntsb/CHI04LA202 ## Probable cause The restriction of airflow in the carburetor due to a foreign substance blockage of the venturi. A contributing factor was the trees. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, approach - vfr pattern - downwind - fuel system,carburetor - foreign material/substance (cause) - fuel system,carburetor - blocked(partial) (cause) - Forced landing, descent - emergency - In flight collision with object, emergency descent/landing - object - tree(s) (contributing factor) - weather condition - low ceiling (contributing factor) - In flight collision with terrain/water, emergency descent/landing - terrain condition - ground ## Analysis The airplane collided with trees during a forced landing while in the traffic pattern at a private airstrip. The pilot stated he departed the airstrip and attempted to contact approach control (21 statue miles away) to activate his instrument flight rules flight plan. He stated he was having radio problems in that he could hear approach control, but they were unable to hear him. The pilot reported he was in instrument meteorological conditions so he decided to return to the airstrip. The pilot stated he was in the traffic pattern to land when the engine lost power. He stated he thought he had picked up carburetor ice, so he applied carburetor heat, but was unable to regain any engine power. The airplane contacted trees and settled into a heavily wooded area near the airport. The pilot spent the night in the airplane and found his way out of the woods the following morning. The closest weather reporting station, located 21 miles from the accident site, reported the weather 7 mintes prior to the accident, as 1-1/4 mile visibility with light rain and mist, scattered clouds at 400 feet and a broken cloud ceiling at 700 feet. A post accident inspection of the airplane revealed that the venturi on the air inlet side of the carburetor was blocked by a 5-1/2 inch long piece of heat shield material. This material covered about 70 percent of the inlet area. The source of this material could not be determined as this material was not used anywhere on the airplane. The last annual inspection of the airframe and engine was performed approximately 60 flight hours prior to the accident. ## Factual narrative On July 30, 2004, at 1800 central daylight time, a Piper PA-24, N5769P, collided with trees during a forced landing in Rockville, Indiana, following a loss of engine power. The private, instrument-rated pilot received minor injuries. The airplane was substantially damaged. The 14 CFR Part 91 personal flight was operating in instrument meteorological conditions. An instrument flight rules flight plan was filed, but it had not been activated at the time of the accident. The flight originated from Butler Field (IN46), a private airstrip in Rockville, Indiana, about 1700. The pilot stated he departed IN46 and attempted to contact Terre Haute International (HUF) Approach Control to activate his flight plan. He stated he was having problems with the radio. He was able to hear the controller, but the controller was unable to hear him. In a telephone interview the pilot reported he was in instrument meteorological conditions so he decided to return to IN46. The pilot stated he was in the traffic pattern to land on runway 09 when the engine lost power. He stated he thought he had picked up carburetor ice, so he applied carburetor heat, but was unable to regain any engine power. The airplane contacted trees and settled into a heavily wooded area near the airport. The pilot spent the night in the airplane and was able to find his way out of the woods the following morning. The weather reported at HUF, at 1753, was 1-1/4 mile visibility with light rain and mist, scattered clouds at 400 feet and a broken cloud ceiling at 700 feet. A post-accident inspection of the airplane was conducted by inspectors from the Federal Aviation Administration, Indianapolis, Indiana, Flight Standards District Office. This inspection revealed that the venturi on the air inlet side of the carburetor was blocked by a 5-1/2 inch long piece of heat shield material. This material covered about 70 percent of the inlet area. The source of this material could not be determined as it was not used anywhere on the airplane. The last annual inspection of the airframe and engine was performed on February 20, 2004, approximately 60 flight hours prior to the accident. ## Aircraft - Registration: [N5769P](https://openairdocs.org/deregistered/N5769P-2008-06-27), registration cancelled 2008-06-27, S/N 24-847, built 1959 (OpenAirDocs) - Reported make and model: Piper PA-24 - Registry model: [Piper PA-24](https://openairdocs.org/model/piper-pa-24) (registry code 7102402) (OpenAirDocs) - Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 24-847 - Airframe hours: 3608 - Engines: Lycoming O-360-A1A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Robert D. Hale - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 20, 2004, 60 hours before - Departed: IN46, Rockville, IN - Destination: TYQ, Zionsville, IN - Flight plan: IFR - Airport: IN46, Butler Field ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 59; injuries: minor; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; last flight review September 15, 2002; seat: left; flight hours: 1,769 total, 350 in this make and model, 29 in the last 90 days, 16 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 3 knots - Visibility: 1.25 statute miles - Lowest ceiling: 700 ft broken - Temperature: 70 °F, dew point 70 °F - Altimeter: 29.85 inHg - Observed at: HUF, 21 nm away ## 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 20040730026899A](https://openairdocs.org/incident/20040730026899A), Jul 30, 2004: Piper PA24, Rockville, IN, Substantial damage. (-23) On July 30th, 2004, Piper comanche N5769P took off from Butler field airport (IN46) in Rockville, Indiana. The pilot in command of N5769P was Mr. Robert… 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.