# NTSB WPR12LA314: Cessna 182R, N73466, Hilo, HI, June 6, 2012 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 6, 2012, 00:00 local (09:00 UTC) - Place: Hilo, HI - Coordinates: 21.289443, -157.908889 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=21.2894&lon=-157.9089&mi=10 - Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping) - Defining event: [Unknown: Unknown or undetermined](https://openairdocs.org/ntsb-events/000) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report February 14, 2013 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration, Civil Air Patrol - NTSB case key (mKey): 84378 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR12LA314 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/84378/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=84378 - Page: https://openairdocs.org/ntsb/WPR12LA314 ## Probable cause The damage to the engine firewall for a reason that was undetermined because the damage was not reported when it occurred. ## 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: [Cessna 182R, 1 case](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=2072731), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Unknown: Unknown or undetermined](https://openairdocs.org/ntsb-events/000) (defining event); cases with it: [Cessna 182R, 2 cases](https://openairdocs.org/ntsb-events/000/sequence.md?model=2072731), [All aircraft, 1,703 cases](https://openairdocs.org/ntsb-events/000/sequence.md) ## Analysis During a preflight examination of the airplane, damage to the engine firewall was observed. It was undetermined when and how the damage occurred. Review of flight logs provided by the operator revealed that the airplane had been flown 13 hours since the most recent maintenance was performed. The operator stated that there were no reported hard landings since that maintenance. ## Factual narrative On June 6, 2012, during a pre-flight examination of a Cessna 182R, N73466, at the Hilo International Airport, Hilo, Hawaii, substantial damage to the engine firewall was discovered. The airplane was registered to and operated by Civil Air Patrol, Inc., under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91. There were no reported injuries. The flight date and time which resulted in the damage to the airplane was undetermined. Review of a flight log submitted by the operator revealed that six flights, totaling 13 hours of flight time had occurred since the airplane had undergone maintenance on May, 29, 2012. It was not determined how the damage occurred to the firewall. The operator reported that there were no reported hard landings during this timeframe. ## Aircraft - Registration: [N73466](https://openairdocs.org/deregistered/N73466-2018-06-15), registration cancelled 2018-06-15, S/N 18268113, built 1981 (OpenAirDocs) - Reported make and model: CESSNA 182R - Registry model: [Cessna 182R](https://openairdocs.org/model/cessna-182r) (registry code 2072731) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 18268113 - Airframe hours: 2916 - Engines: CONT MOTOR O-470 SERIES 230 horsepower reciprocating - Damage: Substantial damage - Flight: Part 91 - Operator: Civil Air Patrol Inc - Registered owner: Civil Air Patrol Inc - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 17, 2012, 55 hours before - Departed: PHTO, Hilo, HI - Destination: PHTO, Hilo, HI - Airport: PHTO, Hilo International Airport ## Docket (4 files) The files NTSB released with the investigation on December 27, 2012, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=84378. 3.2 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40384215&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Copies from the Airframe Logbooks (item 2, .PDF, 464 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40383179&FileExtension=.PDF&FileName=Copies%20from%20the%20Airframe%20Logbooks-Redacted.PDF - Aircraft Flight Log Entries (item 3, .PDF, 145 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40383181&FileExtension=.PDF&FileName=Aircraft%20Flight%20Log%20Entries-Redacted.PDF - Statement of Party Representatives to NTSB Investigation - Civil Air Patrol (item 4, .PDF, 345 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40383182&FileExtension=.PDF&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation%20-%20Civil%20Air%20Patrol-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.