# NTSB GAA17CA395: Cessna R182, N1746R, San Jose, CA, July 8, 2017

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: July 8, 2017, 11:18 local (18:18 UTC)
- Place: San Jose, CA
- Coordinates: 37.333332, -121.819168 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.3333&lon=-121.8192&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Defining events: [Taxi: Ground collision](https://openairdocs.org/ntsb-events/200); [Taxi: Ground collision](https://openairdocs.org/ntsb-events/200)
- Highest injury: No injuries
- Injuries: 7 uninjured
- Status: Completed, report March 14, 2018
- Report: Approved by Office Director
- NTSB office: General Aviation Accidents
- Parties: FAA
- NTSB case key (mKey): 95526
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA17CA395
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95526/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=95526
- Page: https://openairdocs.org/ntsb/GAA17CA395

## Probable cause (aircraft 2)

The other pilot’s failure to maintain separation from another airplane in the run-up area while taxiing.

## Probable cause (aircraft 1)

The pilot’s failure to maintain separation from another airplane in the run-up area while taxiing.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Attention/monitoring: monitoring other aircraft](https://openairdocs.org/ntsb-findings/02021540): Personnel issues › Psychological · Pilot (probable cause), aircraft 1; cases with it: [Cessna R182, 1 case](https://openairdocs.org/ntsb-findings/02021540/cases.md?model=2072734), [All aircraft, 231 cases](https://openairdocs.org/ntsb-findings/02021540/cases.md)
- [Object/animal/substance: aircraft](https://openairdocs.org/ntsb-findings/03022040): Environmental issues › Physical environment · Effect on operation (probable cause), aircraft 1; cases with it: [Cessna R182, 1 case](https://openairdocs.org/ntsb-findings/03022040/cases.md?model=2072734), [All aircraft, 116 cases](https://openairdocs.org/ntsb-findings/03022040/cases.md)
- [Attention/monitoring: monitoring other aircraft](https://openairdocs.org/ntsb-findings/02021540): Personnel issues › Psychological · Pilot of other aircraft (probable cause), aircraft 2; cases with it: [Siai-Marchetti SF.260B, 1 case](https://openairdocs.org/ntsb-findings/02021540/cases.md?model=8121210), [All aircraft, 231 cases](https://openairdocs.org/ntsb-findings/02021540/cases.md)
- [Object/animal/substance: aircraft](https://openairdocs.org/ntsb-findings/03022040): Environmental issues › Physical environment · Effect on operation (probable cause), aircraft 2; cases with it: [Siai-Marchetti SF.260B, 1 case](https://openairdocs.org/ntsb-findings/03022040/cases.md?model=8121210), [All aircraft, 116 cases](https://openairdocs.org/ntsb-findings/03022040/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Taxi: Ground collision](https://openairdocs.org/ntsb-events/200) (defining event), aircraft 1; cases with it: [Cessna R182, 1 case](https://openairdocs.org/ntsb-events/200/sequence.md?model=2072734), [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md)
- [Taxi: Ground collision](https://openairdocs.org/ntsb-events/200) (defining event), aircraft 2; cases with it: [Siai-Marchetti SF.260B, 1 case](https://openairdocs.org/ntsb-events/200/sequence.md?model=8121210), [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md)

## Analysis (aircraft 2)

The pilot of the Cessna reported that, as he taxied into the runup area between another Cessna and a Siai-Marchetti, the airplane's right wing impacted the rudder of the Siai-Marchetti. The Siai-Marchetti sustained substantial damage to the rudder. The Cessna sustained minor damage to the right wing. Both pilots reported that there were no preaccident mechanical malfunctions or failures with their respective airplanes that would have precluded normal operation.

## Analysis (aircraft 1)

The pilot of the Cessna reported that, as he taxied into the runup area between another Cessna and a Siai-Marchetti, the airplane's right wing impacted the rudder of the Siai-Marchetti. The Siai-Marchetti sustained substantial damage to the rudder. The Cessna sustained minor damage to the right wing. Both pilots reported that there were no preaccident mechanical malfunctions or failures with their respective airplane's that would have precluded normal operation.

## Factual narrative (aircraft 2)

The pilot of the Cessna reported that, as he taxied into the runup area between another Cessna and a Siai-Marchetti, his right wing impacted the rudder of the Siai-Marchetti. The Siai-Marchetti sustained substantial damage to the rudder. The Cessna sustained minor damage to the right wing. Both pilot's reported no preaccident mechanical malfunctions or failures with their respective airplane's that would have precluded normal operation.

## Factual narrative (aircraft 1)

The pilot of the Cessna reported that, as he taxied into the runup area between another Cessna and a Siai-Marchetti, his right wing impacted the rudder of the Siai-Marchetti. The Siai-Marchetti sustained substantial damage to the rudder. The Cessna sustained minor damage to the right wing. Both pilot's reported no preaccident mechanical malfunctions or failures with their respective airplane's that would have precluded normal operation.

## Aircraft 1

- Registration: [N1746R](https://openairdocs.org/aircraft/N1746R), registered now, S/N R18200543 (OpenAirDocs)
- Reported make and model: CESSNA R182 (RG)
- Registry model: [Cessna R182](https://openairdocs.org/model/cessna-r182) (registry code 2072734) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: R18200543
- Year built: 1978
- Engines: Lycoming O540 235 horsepower reciprocating
- Damage: Minor damage
- Flight: Personal, Part 91
- Airworthiness certificate: Standard, Normal
- Flight plan: Unknown
- Airport: RHV, Reid-Hillview Of Santa Clara C
- Equipment: Stall warning system, Onboard weather, Auto-pilot, Electronic flight bag or handheld device, Handheld GPS

## Aircraft 2

- Registration: [N26AE](https://openairdocs.org/aircraft/N26AE), registered now, S/N 230(2106), built 1976 (OpenAirDocs)
- Reported make and model: SIAI-MARCHETTI SF.260B (B)
- Registry model: [Siai-Marchetti SF.260B](https://openairdocs.org/model/siai-marchetti-sf-260b) (registry code 8121210) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 230(2106)
- Year built: 1976
- Engines: LYCOMING O-540 SERIES 250 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Swallows Inc.
- Registered owner: Swallows Inc.
- Airworthiness certificate: Standard, Aerobatic
- Flight plan: Unknown
- Airport: RHV, Reid-Hillview Of Santa Clara C
- Equipment: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot, aircraft N1746R; age 81; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; restraint: lap only; flight hours: 1,724 total, 435 in this make and model
- Pilot, aircraft N26AE; age 45; injuries: none; medical: class 3, with waivers/limitations; seat: front; flight hours: 310 total, 98 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 48 °F
- Altimeter: 29.94 inHg
- Observed at: KRHV

## Docket (3 files)

The files NTSB released with the investigation on February 5, 2018, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=95526. 5.0 MB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (N1746R) (item 1, .PDF, 3.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40459750&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1%20(N1746R)-Master.PDF
- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (N26AE) (item 2, .PDF, 757 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40459751&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1%20(N26AE)-Master.PDF
- Accident Photo (Courtesy of FAA) (item 3, .PDF, 1 photo, 508 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40459752&FileExtension=.PDF&FileName=Accident%20Photo%20(Courtesy%20of%20FAA)-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.

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