# NTSB CEN11IA106: Piper PA-46-500TP, N767TP, Olathe, KS, October 21, 2010 - Type: NTSB incident investigation - Classification: Incident · No injuries · Incident investigation · Final report - Date: October 21, 2010, 14:00 local (19:00 UTC) - Place: Olathe, KS - Coordinates: 38.846668, -94.736663 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.8467&lon=-94.7367&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Defining event: [Initial climb: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report January 17, 2012 - Report: Approved by Office Director - NTSB office: Central Region - Parties: Kansas City Aviation Center, IGS, Piper Aircraft, Inc, Honeywell Aerospace - NTSB case key (mKey): 77994 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN11IA106 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/77994/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=77994 - Page: https://openairdocs.org/ntsb/CEN11IA106 ## Probable cause The loss of engine power for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Piper PA46-500TP, 4 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=7104622), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) - [Engine (turbine/turboprop)](https://openairdocs.org/ntsb-findings/01057200): Aircraft › Aircraft power plant · Not specified; cases with it: [Piper PA46-500TP, 3 cases](https://openairdocs.org/ntsb-findings/01057200/cases.md?model=7104622), [All aircraft, 67 cases](https://openairdocs.org/ntsb-findings/01057200/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Initial climb: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) (defining event); cases with it: [Piper PA46-500TP, 3 cases](https://openairdocs.org/ntsb-events/342/sequence.md?model=7104622), [All aircraft, 1,858 cases](https://openairdocs.org/ntsb-events/342/sequence.md) ## Analysis The pilot was conducting a post-maintenance test flight when the airplane experienced a loss of engine power. The pilot was able to restore engine power with the manual override lever. The airplane returned to the airport and landed without further incident. Postincident examination of the engine and related systems revealed no mechanical malfunctions or failures that would have precluded normal operation. ## Factual narrative On October 21, 2010, at 1400 central daylight time, a Piper PA-46-500TP airplane, N767TP, experienced a loss of engine power following takeoff from Johnson County Executive Airport (OJC), Olathe, Kansas. Visual meteorological conditions prevailed at the time of the incident. The pilot was not injured and the airplane received internal engine damage. The test flight was being conducted under the provisions of 14 Code of Federal Regulations Part 91 without a flight plan. The local flight was originating at the time of the incident. The pilot was conducting a post-maintenance test flight. Shortly after takeoff, at an altitude of about 150 to 200 feet above ground level (agl), the airplane experienced a loss of engine power. The pilot moved the power control lever full forward and full aft without any effect on the engine power. The pilot then pulled the Manual Override (MOR) lever at which time the engine power was restored. The pilot was able to return to the airport and land without further incident. The engine experienced an over-temperature event during the recovery. The airframe, engine, fuel control unit, propeller overspeed governor, and related systems were examined. No anomalies were noted that would have precluded normal operation. Fuel samples from the incident airplane were tested and found to be within specifications. The reason for the loss of engine power could not be determined. ## Aircraft - Registration: [N767TP](https://openairdocs.org/aircraft/N767TP), registered now, S/N 4697036, built 2001 (OpenAirDocs) - Reported make and model: PIPER PA-46-500TP - Registry model: [Piper PA46-500TP](https://openairdocs.org/model/piper-pa46-500tp) (registry code 7104622) (OpenAirDocs) - Registry engine: [Pratt & Whitney PT6A series](https://openairdocs.org/engine/pratt-whitney-pt6a-series) (registry code 52032, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: 4697036 - Airframe hours: 1282 - Engines: Pratt & Whitney PT-6A-42A 500 horsepower turbo prop - Damage: No damage - Flight: Flight test, Part 91 - Operator: Kansas City Aviation Services - Registered owner: Cross Development Of Missouri Inc - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 21, 2010 - Departed: OJC, Olathe, KS - Destination: OJC, Olathe, KS - Airport: OJC, Johnson County Exec Airport ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 34; injuries: none; airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review August 9, 2010; seat: left; flight hours: 2,427 total, 14 in this make and model, 2,355 as pilot in command, 159 in the last 90 days, 51 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F, dew point 36 °F - Altimeter: 29.97 inHg - Observed at: KOJC ## Docket (7 files) The files NTSB released with the investigation on December 8, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=77994. 1.4 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 630 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40357638&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Data Acquisition Unit - Specialist's Factual Report (item 2, .PDF, 62 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40341970&FileExtension=.PDF&FileName=Data%20Acquisition%20Unit%20-%20Specialist%27s%20Factual%20Report-Master.PDF - Materials Laboratory 15 - Factual Report 11-052 (item 3, .PDF, 352 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40347076&FileExtension=.PDF&FileName=Materials%20Laboratory%2015%20-%20Factual%20Report%2011-052-Redacted.PDF - Operator Statement - CEN11IA106 (item 4, .PDF, 41 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40357639&FileExtension=.PDF&FileName=Operator%20Statement%20-%20CEN11IA106-Redacted.PDF - Governor Examinaiton Report - CEN11IA106 (item 5, .PDF, 61 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40357590&FileExtension=.PDF&FileName=Governor%20Examinaiton%20Report%20-%20CEN11IA106-Redacted.PDF - Statement of Party Representatives to NTSB Investigation (item 6, .PDF, 230 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40357591&FileExtension=.PDF&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Redacted.PDF - Release of Aircraft Wreckage, NTSB Form 6120.15 (item 7, .PDF, 21 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40357593&FileExtension=.PDF&FileName=Release%20of%20Aircraft%20Wreckage,%20NTSB%20Form%206120.15-Redacted.PDF 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.