# NTSB CHI84LA327: Gulfstream 690, N700CB, Detroit, MI, August 3, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 3, 1984, 09:15 local (13:15 UTC)
- Place: Detroit, MI
- Coordinates: 42.33094, -83.049339 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.3309&lon=-83.0493&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12721
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA327
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12721/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA327

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Main gear collapsed, standing - starting engine(s)
  - landing gear,normal retraction/extension assembly - undetermined (cause)

## Analysis

ON RIGHT ENGINE START THE RIGHT MAIN LANDING GEAR COLLAPSED.THE GEAR HANDLE WAS FOUND IN THE DOWN POSITION AFTER THE ACCIDENT. FUNCTIONAL AND BENCH CHECK OF THE ACTUATING COMPONENTS REVEALED NO DISCREPANCIES.

## Aircraft

- Registration: N700CB (not matched to a registry record)
- Reported make and model: GULFSTREAM 690
- Category: Airplane
- Serial number: 11001
- Engines: Airesearch TPE-331-5251K 718 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Bard Air Corp.
- Airworthiness certificate: Standard, Normal
- Destination: BKL, CLEVELAND, OH
- Flight plan: IFR
- Airport: DET, Detroit City

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 7,500 total, 1,210 in this make and model, 7,500 as pilot in command, 135 in the last 90 days

## Weather

- Conditions: Instrument (IMC), Day
- Wind: calm
- Visibility: 1 statute miles
- Lowest ceiling: 8,000 ft broken
- Temperature: 81 °F, dew point 77 °F
- Altimeter: 30.00 inHg
- Observed at: DET

## 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 19840803040559A](https://openairdocs.org/incident/19840803040559A), Aug 3, 1984: Gulstm 690, Detroit, MI, Substantial damage. Right main landing gear collapsed while starting the right engine. No defects found.

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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