# NTSB DEN05LA019: Piper PA-24-250, N7852P, Ogden, UT, November 2, 2004 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: November 2, 2004, 16:55 local (23:55 UTC) - Place: Ogden, UT - Coordinates: 41.184444, -112.001113 - Nearby events: https://openairdocs.org/map.md?lat=41.1844&lon=-112.0011&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 2 serious - Status: Completed, report March 30, 2005 - Report: Approved by Office Director - Parties: FAA Flight Standards District Office - NTSB case key (mKey): 60498 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN05LA019 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/60498/pdf - Page: https://openairdocs.org/ntsb/DEN05LA019 ## Probable cause the loss of engine power due to carburetor icing. Contributing factors include the weather conditions conducive for carburetor icing, and a lack of suitable terrain for a forced landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, approach - fuel system,carburetor - ice (cause) - weather condition - carburetor icing conditions (contributing factor) - Forced landing, descent - emergency - On ground/water encounter with terrain/water, landing - roll - terrain condition - none suitable (contributing factor) - terrain condition - high vegetation - terrain condition - berm ## Analysis The pilot reported engine problems while on approach to the airport. During the forced landing, the airplane impacted a berm, and tall brush, causing substantial damage. A postaccident examination of the engine on the day of the accident revealed that the air box around the carburetor contained a small amount of water. The routine weather report taken at 1653 reported the temperature as 42 degrees Fahrenheit (F) and the dewpoint as 25 degrees F. According to the carburetor icing chart, conditions were conducive for icing at glide and cruise power. In addition, several other pilots flying in the area at the time of the accident reported experiencing carburetor icing. ## Factual narrative On November 2, 2004, at approximately 1655 mountain standard time, a Piper PA-24-250, N7852P, operated by KW Aviation, was substantially damaged when it impacted terrain during a forced landing 3 miles north of Ogden-Hinckley Airport, Ogden, Utah. Visual meteorological conditions prevailed at the time of the accident. The training flight was being conducted under the provisions of Title 14 CFR Part 91 without a flight plan. The commercial certificated pilot and flight instructor sustained serious injuries. The local flight originated at approximately 1530. According to the FAA inspector who traveled to the scene, the pilot reported engine problems while on approach for landing to the Ogden airport. During the forced landing, the airplane impacted a berm, and tall brush, separating the empennage. The right main landing gear penetrated the right wing and the outboard 2 feet of the left wing was crushed and bent up. Both pilots sustained head injuries and neither are able to remember the events leading up to the accident. A postaccident examination of the engine on the day of the accident, conducted by the FAA, revealed that the air box around the carburetor contained a small amount of water. Further inspection of the engine and remaining airplane systems revealed no anomalies. The Ogden routine weather report taken at 1653 reported the temperature as 42 degrees Fahrenheit (F) and the dewpoint as 25 degrees F. According to the carburetor icing chart, conditions were conducive for icing at glide and cruise power. The FAA inspector stated that several other pilots flying in the area at the time of the accident reported experiencing carburetor icing as well. ## Aircraft - Registration: [N7852P](https://openairdocs.org/deregistered/N7852P-2013-08-08), registration cancelled 2013-08-08, S/N 24-3075, built 1962 (OpenAirDocs) - Reported make and model: Piper PA-24-250 - Registry model: [Piper PA-24-250](https://openairdocs.org/model/piper-pa-24-250) (registry code 7102404) (OpenAirDocs) - Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 24-3075 - Airframe hours: 3825 - Engines: Lycoming O-540-A1D5 250 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: KW Avation - Airworthiness certificate: Standard, Normal - Last inspection: Annual, November 25, 2003, 82 hours before - Departed: OGD, Ogden, UT - Destination: OGD, Ogden, UT - Flight plan: Unknown - Airport: OGD, Ogden-Hinckley ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 25; injuries: serious; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; last flight review September 16, 2003; seat: right; flight hours: 1,722 total, 59 in this make and model, 1,647 as pilot in command, 201 in the last 90 days, 69 in the last 30 days, 5 in the last 24 hours - Pilot; age 33; injuries: serious; commercial; airplane ratings: single-engine land; instrument ratings: airplane, helicopter; medical: class 2, valid medical--no waivers/lim.; last flight review October 7, 2004; seat: left; flight hours: 800 total, 100 as pilot in command, 40 in the last 90 days, 25 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 3 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 43 °F, dew point 25 °F - Altimeter: 30.36 inHg - Observed at: OGD, 3 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 20041102027709A](https://openairdocs.org/incident/20041102027709A), Nov 2, 2004: Piper PA24250, Ogden, UT, Destroyed. (-23) Aircraft was inbound for landing at the Ogden, Utah airport and had been cleared to enter left downwind for runway 34. Approximately 3 miles north of the… ## Other investigations on N7852P (2) 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. - [NTSB OAK71DVA86](https://openairdocs.org/ntsb/OAK71DVA86), Jun 19, 1971: Piper PA-24 (N7852P), Visalia, CA, substantial damage - [NTSB OAK70DVA10](https://openairdocs.org/ntsb/OAK70DVA10), Apr 28, 1970: Piper PA-24 (N7852P), Visalia, CA, substantial damage 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.