# NTSB NYC91DNC02: Marier Early Bird Jenny, N7165Y, Concord, NH, November 3, 1990

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: November 3, 1990, 10:15 local (15:15 UTC)
- Place: Concord, NH
- Location: 43.2062° N, 71.5215° W: Placed by OpenAirDocs from NTSB’s distance and direction from CONCORD MUNI (CON), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.2062&lon=-71.5215&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report May 10, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 36763
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC91DNC02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36763/pdf
- Page: https://openairdocs.org/ntsb/NYC91DNC02

## Probable cause

THE FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL SPIN.  A FACTOR RELATED TO THE ACCIDENT WAS: THE PILOT'S LACK OF EXPERIENCE IN THE MAKE AND MODEL OF AIRCRAFT.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - airspeed - not maintained, pilot in command (cause)
  - stall/spin - inadvertent, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PILOT WAS TESTING HIS NEW HOMEBUILT AIRPLANE, WHICH WAS NOT EQUIPPED WITH A STALL WARNING HORN.  THE AIRPLANE WAS OBSERVED TO TAKEOFF & ENTER A LEFT TURN AT A SLOW AIRSPEED, THEN IT ENTERED A LEFT SPIN.  RECOVERY WAS NOT ACCOMPLISHED BEFORE GROUND IMPACT.  NO EVIDENCE OF A PRE-EXISTING FAILURE OR MALFUNCTION WAS FOUND.  THE PILOT HAD PREVIOUSLY OWNED AN AIRPLANE WITH A STALL WARNING HORN.

## Aircraft

- Registration: [N7165Y](https://openairdocs.org/deregistered/N7165Y-1994-01-28), registration cancelled 1994-01-28, S/N 105 (OpenAirDocs)
- Reported make and model: MARIER EARLY BIRD JENNY (EARLY BIRD)
- Registry model: [Marier Robert CURTIS JENNY](https://openairdocs.org/model/marier-robert-curtis-jenny) (registry code 056165J) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 105
- Airframe hours: 2
- Engines: Subaru EA81 70 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 91
- Operator: Robert Marier
- Registered owner: Robert Marier
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, October 31, 1990, 2 hours before
- Airport: CON, Concord, runway 3, 3,999 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 1,000 total, 1 in this make and model, 950 as pilot in command, 50 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 13 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 72 °F, dew point 52 °F
- Altimeter: 30.00 inHg
- Observed at: CON, 1 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 19901103048619A](https://openairdocs.org/incident/19901103048619A), Nov 3, 1990: Amtr EARLYBIRDJNY, Concord, NH, Destroyed. Stalled and spun in on climbout on first full flight in the homebuilt.

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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