# NTSB GAA17CA371: Aero Commander Callair A 9, N7662V, Morgan, UT, June 24, 2017 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 24, 2017, 17:15 local (23:15 UTC) - Place: Morgan, UT - Coordinates: 41.055557, -111.592781 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.0556&lon=-111.5928&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Defining event: [Enroute-cruise: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 22, 2017 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 95445 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA17CA371 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95445/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=95445 - Page: https://openairdocs.org/ntsb/GAA17CA371 ## Probable cause The pilot’s failure to see and avoid transmission wires. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Attention/monitoring: monitoring environment](https://openairdocs.org/ntsb-findings/02021545): Personnel issues › Psychological · Pilot (probable cause); cases with it: [Aero Commander CALLAIR A-9, 1 case](https://openairdocs.org/ntsb-findings/02021545/cases.md?model=0144202), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md) - [Object/animal/substance: wire](https://openairdocs.org/ntsb-findings/03022032): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Aero Commander CALLAIR A-9, 1 case](https://openairdocs.org/ntsb-findings/03022032/cases.md?model=0144202), [All aircraft, 588 cases](https://openairdocs.org/ntsb-findings/03022032/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Enroute-cruise: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120) (defining event); cases with it: [Aero Commander CALLAIR A-9, 1 case](https://openairdocs.org/ntsb-events/120/sequence.md?model=0144202), [All aircraft, 1,074 cases](https://openairdocs.org/ntsb-events/120/sequence.md) ## Analysis The pilot reported that, during a positioning flight, about 500 ft, he was flying along a highway, and the airplane struck transmission wires. He added that he turned back to the departure airport and landed without further incident. The airplane sustained substantial damage to both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. According to an employee of the power company, the struck transmission wires were about 93 to 100 ft above the ground. ## Factual narrative The pilot reported that, during a positioning flight, about 500 ft, he was flying along a highway and the airplane struck transmission wires. He added that he turned back to the departure airport and landed without further incident. The airplane sustained substantial damage to both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. According to an employee of the power company, the struck transmission wires were about 93-100 ft above the ground. ## Aircraft - Registration: [N7662V](https://openairdocs.org/deregistered/N7662V-2019-01-09), registration cancelled 2019-01-09, S/N 1390, built 1967 (OpenAirDocs) - Reported make and model: AERO COMMANDER CALLAIR A 9 - Registry model: [Aero Commander CALLAIR A-9](https://openairdocs.org/model/aero-commander-callair-a-9) (registry code 0144202) (OpenAirDocs) - Registry engine: [Lycoming O-540-B2B5](https://openairdocs.org/engine/lycoming-o-540-b2b5) (registry code 42337, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1390 - Year built: 1967 - Airframe hours: 4158.7 - Engines: LYCOMING O-540-B2B5 235 horsepower reciprocating - Damage: Substantial damage - Flight: Positioning, Part 91 - Operator: Elk Mountain Soaring LLC - Registered owner: Elk Mountain Soaring LLC - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, June 15, 2016 - Departed: 42U, MORGAN, UT - Destination: 36U, HEBER, UT - Equipment: None ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 29; injuries: none; commercial; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review June 9, 2016; seat: single; restraint: 4-point; flight hours: 416.7 total, 20 in this make and model, 324.6 as pilot in command, 29.1 in the last 90 days, 12.6 in the last 30 days, 0.3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 10° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 82 °F, dew point 34 °F - Altimeter: 30.17 inHg - Observed at: KHIF, 17 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 20170624024519A](https://openairdocs.org/incident/20170624024519A), Jun 24, 2017: Aero Commander CALLAIR A-9, Mountain Green, UT, Substantial damage. Pilot used interstate 84 (Utah) while navigating to airport. Struck high power electric lines which traversed a canyon above the highway. Lines were not… ## Other investigations on N7662V (1) 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 MKC74FCA12](https://openairdocs.org/ntsb/MKC74FCA12-140983), Oct 9, 1974: Aero Comdr A9B (N7662V), Caruthersville, MO, substantial damage ## Docket (3 files) The files NTSB released with the investigation on August 22, 2017, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=95445. 3.6 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40455576&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Transmission Wire Specs (item 2, .PDF, 147 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40455577&FileExtension=.PDF&FileName=Transmission%20Wire%20Specs-Master.PDF - Accident Photo (item 3, .PDF, 94 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40455578&FileExtension=.PDF&FileName=Accident%20Photo-Master.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.