# NTSB GAA16CA200: Grumman Acft ENG Cor-Schweizer G 164, N8872H, Madison, KS, April 25, 2016

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: April 25, 2016, 12:45 local (17:45 UTC)
- Place: Madison, KS
- Coordinates: 38.11111, -96.113891 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.1111&lon=-96.1139&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 1, 2016
- Report: Approved by Office Director
- NTSB office: General Aviation Accidents
- Parties: FAA
- NTSB case key (mKey): 93067
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA16CA200
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/93067/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=93067
- Page: https://openairdocs.org/ntsb/GAA16CA200

## Probable cause

The pilot's incorrect brake application during the landing roll, which resulted in a nose over.

## Findings

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

- [Aircraft capability: braking capability](https://openairdocs.org/ntsb-findings/01061050): Aircraft › Aircraft oper/perf/capability · Incorrect use/operation (probable cause); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 1 case](https://openairdocs.org/ntsb-findings/01061050/cases.md?model=3952801), [All aircraft, 57 cases](https://openairdocs.org/ntsb-findings/01061050/cases.md)
- [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-164A, 10 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=3952801), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md)
- [Runway/land/takeoff/taxi surface: soft surface](https://openairdocs.org/ntsb-findings/03023020): Environmental issues › Physical environment · Decision related to condition; cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 2 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md?model=3952801), [All aircraft, 264 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md)

## Sequence of events

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

- [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 5 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=3952801), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md)
- [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 8 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=3952801), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md)

## Analysis

The pilot of a tailwheel-equipped bi-plane reported that he was performing a short field landing on a rough grass runway. The pilot further reported that he applied the brakes immediately after touchdown, and then felt the main landing gear "grab" and the tail begin to rise. Subsequently, the bi-plane nosed over on the runway. The pilot reported that he "should not have applied the brakes so soon" after touchdown. The vertical stabilizer sustained substantial damage. The pilot did not report any mechanical malfunctions or failures with the bi-plane that would have precluded normal operation.

## Factual narrative

The pilot of a tailwheel-equipped bi-plane reported that he was performing a short field landing on a rough grass runway. The pilot further reported that he applied the brakes immediately after touchdown, and then felt the main landing gear "grab" and the tail begin to rise. Subsequently, the bi-plane nosed over on the runway. The pilot reported that he "should not have applied the brakes so soon" after touchdown. The vertical stabilizer sustained substantial damage. The pilot did not report any mechanical malfunctions or failures with the bi-plane that would have precluded normal operation.

## Aircraft

- Registration: [N8872H](https://openairdocs.org/deregistered/N8872H-2019-09-06), registration cancelled 2019-09-06, S/N 1555, built 1975 (OpenAirDocs)
- Reported make and model: GRUMMAN ACFT ENG COR-SCHWEIZER G 164 (A)
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1555
- Year built: 1975
- Airframe hours: 8265
- Engines: Pratt & Whitney R-985-14B 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 23, 2016
- Departed: FSK, FORT SCOTT, KS
- Destination: SN91, Madison, KS
- Airport: SN91, Godfrey, runway 24, 2,300 × 100 ft, grass/turf
- Equipment: None

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; injuries: none; commercial; airplane ratings: single-engine land; medical: class 2, without waivers/limitations; last flight review January 13, 2015; seat: single; restraint: 3-point; flight hours: 800.2 total, 394 in this make and model, 752 as pilot in command, 52.7 in the last 90 days, 46.5 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 10 knots
- Visibility: 10 statute miles
- Lowest ceiling: 3,200 ft broken
- Temperature: 73 °F, dew point 63 °F
- Altimeter: 29.70 inHg
- Observed at: KEMP, 14 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 20160425003989A](https://openairdocs.org/incident/20160425003989A), Apr 25, 2016: Grumman Acft Eng Cor-Schweizer G-164A, Madison, KS, Substantial damage. On April 25, 2016 at approximately 1245 local time, a commercial pilot exercising commercial pilot privileges made a hard landing in an Grumman aircraft…

## Docket (2 files)

The files NTSB released with the investigation on May 19, 2016, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=93067. 2.6 MB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 2.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440283&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF
- Accident Photo (Courtesy of FAA) (item 2, .PDF, 1 photo, 639 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440284&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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