# NTSB CEN16LA173: Grumman Acft ENG Cor-Schweizer G 164B, N8400K, Iowa, LA, May 4, 2016

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 4, 2016, 11:30 local (16:30 UTC)
- Place: Iowa, LA
- Coordinates: 30.224445, -93.000274
- Nearby events: https://openairdocs.org/map.md?lat=30.2244&lon=-93.0003&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 6, 2016
- Report: Approved by Office Director
- NTSB office: Central Region
- Parties: Flight Standards District Office
- NTSB case key (mKey): 93110
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN16LA173
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/93110/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=93110
- Page: https://openairdocs.org/ntsb/CEN16LA173

## Probable cause

The pilot's failure to maintain directional control while landing with an inoperative right brake.

## Findings

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

- [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Grumman Acft ENG Cor-Schweizer G-164B, 11 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=3952802), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md)

## Sequence of events

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

- [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Grumman Acft ENG Cor-Schweizer G-164B, 6 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=3952802), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md)

## Analysis

The pilot of the agricultural application airplane was landing at a satellite airport when he noticed that the right brake was not operating. He executed a go-around and diverted to his home airport, which was equipped with a longer, wider runway. The pilot reported that, during the landing roll, a "gust of wind turned the airplane to the left," and he attempted to correct by applying full power. The airplane subsequently exited the left side of the runway and impacted a fence.

## Factual narrative

On May 4, 2016, about 1130 central daylight time, a Grumman G-164B airplane, N8400K, was substantially damaged during landing at the O'Brien Flying Service Airport (LA71), Ames, Louisiana. The pilot was not injured. The airplane was registered to and operated by O'Briens Flying Service, Inc., under the provisions of 14 Code of Federal Regulations Part 137 as an aerial spraying flight. Day visual meteorological conditions prevailed for the flight, with no flight plan filed. The local flight departed a private airport about 1110. The pilot stated he had been conducting spray operations since 0730. While landing at a private (satellite) airport, he noticed the right brake was not operating. The pilot executed a go-around and diverted to LA71, based on his desire to land on a longer/wider runway. While landing on Runway 3, the airplane drifted left during rollout. The pilot applied full engine power in an unsuccessful attempt to correct to centerline. The airplane subsequently impacted a fence, which damaged both wings. Examination by Federal Aviation Administration (FAA) inspectors revealed a failure of the right main landing gear hydraulic fluid line, which occurred at the b-nut for the engine cowl feed through fitting. The part number for the failed line was "Right Hand Tube Assembly, P/N A2526-4".

## Aircraft

- Registration: [N8400K](https://openairdocs.org/aircraft/N8400K), registered now, S/N 685B, built 1982 (OpenAirDocs)
- Reported make and model: GRUMMAN ACFT ENG COR-SCHWEIZER G 164B
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs)
- Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01517, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 685B
- Year built: 1982
- Airframe hours: 11620
- Engines: Airesearch TPE331 750 horsepower turbo prop
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: O'Briens Flying Service Inc
- Registered owner: O'Briens Flying Service Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, March 3, 2016
- Departed: PRI, Ames, LA
- Destination: LA71, Iowa, LA
- Airport: LA71, O'Brien Flying Service, runway 03, 3,800 × 100 ft, grass/turf
- Equipment: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; injuries: none; commercial; airplane ratings: single-engine land, multi-engine sea; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review March 18, 2016; seat: center; restraint: 4-point; flight hours: 20,108 total, 17,787 in this make and model, 19,788 as pilot in command, 225 in the last 90 days, 120 in the last 30 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 11 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 86 °F, dew point 52 °F
- Altimeter: 30.03 inHg
- Observed at: KLCH, 13 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 20160504005049A](https://openairdocs.org/incident/20160504005049A), May 4, 2016: Grumman Acft Eng Cor-Schweizer G-164B, Iowa, LA, Substantial damage. While making a landing at a satellite airstrip, pilot noticed he had no right brake and aborted the landing. Pilot decided to return to home base to land with…

## Other investigations on N8400K (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 CHI85LA265](https://openairdocs.org/ntsb/CHI85LA265), Jul 3, 1985: Grumman-Schweizer G-164B (N8400K), Thief River Fl, MN, destroyed

## Docket (4 files)

The files NTSB released with the investigation on August 9, 2016, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=93110. 3.3 MB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 2.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443021&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF
- Photo of Airplane at Accident Site (item 2, .PDF, 1 photo, 191 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443022&FileExtension=.PDF&FileName=Photo%20of%20Airplane%20at%20Accident%20Site-Master.PDF
- FAA Photos of Failed Hydraulic Line (item 3, .PDF, 3 photos, 755 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443023&FileExtension=.PDF&FileName=FAA%20Photos%20of%20Failed%20Hydraulic%20Line-Master.PDF
- Correspondence with FAA (item 4, .PDF, 86 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443024&FileExtension=.PDF&FileName=Correspondence%20with%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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