# NTSB LAX84LA482: Globe GC-1B, N80504, Calistoga, CA, September 16, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: September 16, 1984, 15:30 local (22:30 UTC)
- Place: Calistoga, CA
- Coordinates: 38.619064, -122.609634 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.6191&lon=-122.6096&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24401
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA482
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24401/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA482

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - roll/run
  - aircraft preflight - poor, pilot in command (cause)
  - door,passenger - unlocked (contributing factor)
- Overrun, takeoff
  - weather condition - tailwind (contributing factor)
  - aborted takeoff - performed, pilot in command
- On ground/water encounter with terrain/water, takeoff
  - terrain condition - ditch (contributing factor)

## Analysis

THE STARBOARD ENTRANCE HATCH OPENED DURING TAKEOFF ROLL. THE PILOT ABORTED THE TAKEOFF. THE ACFT COULD NOT BE STOPPED ON THE REMAINING RWY & COLLIDED WITH A DITCH. THE TAKEOFF WAS ATTEMPTED WITH A LIGHT TAILWIND ON A UNIDIRECTIONAL RWY.

## Aircraft

- Registration: [N80504](https://openairdocs.org/deregistered/N80504-2016-12-13), registration cancelled 2016-12-13, S/N 7, built 1946 (OpenAirDocs)
- Reported make and model: Globe GC-1B
- Registry model: [Globe GC-1B](https://openairdocs.org/model/globe-gc-1b) (registry code 9230104) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 80504
- Airframe hours: 1300
- Engines: CONTINENTAL O-300 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Robert W. Macek
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 31, 1984
- Departed: 058, CALISTOGA, CA
- Destination: PAO, PALO ALTO, CA
- Airport: 058, Calisyoga Airpark, runway 10, 2,600 × 20 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 1,515 total, 105 in this make and model, 771 as pilot in command, 108 in the last 90 days, 32 in the last 30 days, 15 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 5 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 97 °F, dew point 55 °F
- Altimeter: 29.00 inHg
- Observed at: STS, 12 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 19840916049179A](https://openairdocs.org/incident/19840916049179A), Sep 16, 1984: Univac GC1B, Calistoga, CA, Substantial damage. Aborted takeoff late due to right hatch opened and seperated. Ran off end of the runway and struck an embankment.

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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