# NTSB CHI97LA260: Cessna 182, N9952T, Derby, KS, August 17, 1997 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 17, 1997, 16:25 local (21:25 UTC) - Place: Derby, KS - Coordinates: 37.540847, -97.25032 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.5408&lon=-97.2503&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 5 uninjured - Status: Completed, report February 29, 2000 - Report: Approved by Office Director - ADs cited in the narratives: [AD 91-15-04](https://openairdocs.org/ad/91-15-04) (OpenAirDocs) - NTSB case key (mKey): 10672 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI97LA260 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/10672/pdf - Page: https://openairdocs.org/ntsb/CHI97LA260 ## Probable cause the Airworthiness Directive and propeller overhaul not being complied with. Factors to the accident were the propeller blade retention failure and rough/uneven terrain condition. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(total) - mech failure/malf, climb - propeller system/accessories,prop blade retention - failure,total (contributing factor) - maintenance,compliance with ad - not complied with, owner/pilot mechanic (cause) - maintenance,overhaul - not complied with, owner/pilot mechanic (cause) - Forced landing, emergency descent/landing - Nose gear collapsed, landing - roll - terrain condition - rough/uneven (contributing factor) - Fire, standing - engine(s) not operating ## Analysis According to the pilot, the flight departed Cook Field uneventfully and attained an altitude of approximately 800 feet above ground level when the airplane experienced a complete loss of engine power. The pilot stated that, 'the windshield was covered with oil,' and by looking out the pilot's side window he was able to land uneventfully in a field. The pilot reported that the nose wheel collapsed during the landing roll and the aircraft came to rest approximately midway down the 1,600 foot grassy field. The pilot reported that all passengers exited the aircraft without injuries. The pilot reported that a short time after the occupants were clear of the accident site the airplane became engulfed in flames which eventually burned the fuselage and inboard sections of both wings. Post accident investigation showed that the number six cylinder was separated from the rest of the engine assembly, the crankshaft was fractured, and the propeller blade was fractured at the hub. Examination of the fractured propeller hub was conducted by McCaully Propeller Systems. Examination showed that propeller blade, serial number K95501YS, had failed in fatigue with the fatigue origin found located in the tread root. No anomaly or material/manufacturing defect was found. Further examination showed that the internal components of the propeller contained a substantial amount of rust and rust residue. The specified time-between-overhaul (TBO) for the accident propeller was 1,200 hours or 60 calendar months, whichever occurs first. The propeller had never been overhauled and had been in service for 19 years since new. FAA Airworthiness Directive 91-15-04, which requires the propeller model to be modified to an oil-filled type for the purpose of crack detection, was not complied with. ## Factual narrative On August 17, 1997, at 1625 central daylight time, a Cessna 182D, N9952T, piloted by a private pilot, was destroyed by fire following a forced landing near Derby, Kansas. Visual meteorological conditions prevailed at the time of the accident. The parachuting flight was operating under the provisions of 14 CFR Part 91 and was not on a flight plan. The pilot and four passengers reported no injuries. The local flight departed Cook Field, Derby, Kansas, at approximately 1622. According to the pilot, the flight departed Cook Field uneventfully and attained an altitude of approximately 800 feet above ground level when the airplane experienced a complete loss of engine power. The pilot stated that, "the windshield was covered with oil," and by looking out the pilot's side window he was able to land uneventfully in a field. The pilot reported that the nose wheel collapsed during the landing roll and the aircraft came to rest approximately midway down the 1,600 foot grassy field. The pilot reported that all passengers exited the aircraft without injuries. The pilot reported that a short time after the occupants were clear of the accident site the airplane became engulfed in flames which eventually burned the fuselage and inboard sections of both wings. Post accident investigation showed that the number six cylinder was separated from the rest of the engine assembly, the crankshaft was fractured, and the propeller blade was fractured at the hub. Examination of the fractured propeller hub was conducted by McCaully Propeller Systems. Examination showed that propeller blade, serial number K95501YS, had failed in fatigue with the fatigue origin found located in the tread root. No anomaly or material/manufacturing defect was found. Further examination showed that the internal components of the propeller contained a substantial amount of rust and rust residue. The specified time-between-overhaul (TBO) for the accident propeller was 1,200 hours or 60 calendar months, whichever occurs first. The propeller had never been overhauled and had been in service for 19 years since new. FAA Airworthiness Directive 91-15-04, which requires the propeller model to be modified to an oil-filled type for the purpose of crack detection, was not complied with. ## Aircraft - Registration: [N9952T](https://openairdocs.org/deregistered/N9952T-1999-12-02), registration cancelled 1999-12-02, S/N 18253052 (OpenAirDocs) - Reported make and model: Cessna 182 - Registry model: [Cessna 182D](https://openairdocs.org/model/cessna-182d) (registry code 2072710) (OpenAirDocs) - Category: Airplane - Serial number: 53052 - Engines: Continental O-470 265 horsepower reciprocating - Damage: Destroyed - Fire: On-Ground - Flight: Other work use, Part 91 - Registered owner: Ronald Maglaughlin - Airworthiness certificate: Standard, Normal - Departed: K50 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 48; private; airplane ratings: single-engine land; medical: class 2, unknown ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 4 knots - Visibility: 7 statute miles - Lowest ceiling: 4,000 ft broken - Temperature: 79 °F, dew point 59 °F - Altimeter: 30.00 inHg - Observed at: IAB, 10 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 19970817022629A](https://openairdocs.org/incident/19970817022629A), Aug 17, 1997: Cessna 182D, Derby, KS, Destroyed. On departure engine blew oil, made emergency landing, nose gear collapsed, caught fuel line on fire. (.4)according to the pilot, the flight departed cook field… 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.