# NTSB investigations: Amateur-built UNKNOWN ENG, MD

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ERA20CA107](https://openairdocs.org/ntsb/ERA20CA107.md): Orlican L60 · Frederick, MD · Accident · No injuries · Data collection · Final report · Feb 21, 2020 · N71GC · Substantial damage
  > The pilot's failure to maintain airplane control during the approach, which resulted in the airplane ballooning and then veering left upon landing and the right wing impacting the runway.
- [NTSB ERA13FA309](https://openairdocs.org/ntsb/ERA13FA309.md): Nanchang China CJ-6A · Ocean City, MD · Accident · 2 fatal · Field investigation · Final report · Jun 30, 2013 · N116RL · Destroyed
  > The pilot's failure to terminate the intentional aerobatic spin at an altitude adequate to prevent impacting the water. Contributing to the accident was the pilot's loss of situational awareness due to target fixation during the prolonged aerobatic maneuver.
- [NTSB ERA09LA187](https://openairdocs.org/ntsb/ERA09LA187.md): Doyle-Michael Sonerai-II · Leonardtown, MD · Accident · Minor injuries · Limited investigation · Final report · Mar 6, 2009 · N28MD · Substantial damage
  > The pilot's continued operation of the airplane with a known mechanical deficiency. Contributing to the accident was the improper installation of the electronic ignition system.
- [NTSB NYC08CA093](https://openairdocs.org/ntsb/NYC08CA093.md): James Dayton Pit Bull JD-3 · Leonardtown, MD · Accident · No injuries · Data collection · Final report · Jan 27, 2008 · N6592H · Substantial damage
  > The pilot's improper flare during the landing.
- [NTSB NYC07LA022](https://openairdocs.org/ntsb/NYC07LA022.md): Monard RAF 2000 GTX · Ridgely, MD · Accident · 1 fatal · Limited investigation · Final report · Nov 5, 2006 · N107TM · Substantial damage
  > The pilot's failure to maintain rotor rpm while maneuvering, which resulted in a loss of rotor blade rigidity.
- [NTSB NYC05LA121](https://openairdocs.org/ntsb/NYC05LA121.md): Ratliff Hummel Bird · Pittsville, MD · Accident · 1 fatal · Limited investigation · Final report · Jul 19, 2005 · N707TR · Substantial damage
  > A loss of control for undetermined reasons, which resulted in an uncontrolled descent into terrain.
- [NTSB NYC01FA158](https://openairdocs.org/ntsb/NYC01FA158.md): Moravan Zlin 526F · Queen Anne, MD · Accident · 1 fatal · Field investigation · Final report · Jul 2, 2001 · N526GC · Destroyed
  > The pilot's failure to maintain airspeed during an aerobatic maneuver, which resulted in an inadvertent inverted spin.
- [NTSB NYC00LA198](https://openairdocs.org/ntsb/NYC00LA198.md): Warrington Surrel Guppy · Churchville, MD · Accident · Serious injuries · Limited investigation · Final report · Jul 16, 2000 · N4425W · Substantial damage
  > The pilot's failure to maintain airspeed which resulted in an inadvertent stall. Factors in this accident were an open canopy and a decrease in engine power.
- [NTSB IAD99LA047](https://openairdocs.org/ntsb/IAD99LA047.md): Nanchang CJ-6A · Ocean City, MD · Accident · Serious injuries · Limited investigation · Final report · May 30, 1999 · N4MF · No damage
  > Was the pilot leaving the magneto switch in the on position while hand rotating the propeller.
- [NTSB IAD98FA049](https://openairdocs.org/ntsb/IAD98FA049.md): Fairchild Hiller FH-1100 · Stevensville, MD · Accident · 2 fatal · Field investigation · Final report · Apr 26, 1998 · N1345Q · Destroyed
  > The pilot's abrupt, low-g maneuver, which resulted in mast bumping and separation of the main rotor system.
- [NTSB IAD97LA121](https://openairdocs.org/ntsb/IAD97LA121.md): Pohlman/Pohlman Rotorway Exec 90 · Westminster, MD · Accident · Minor injuries · Limited investigation · Final report · Sep 21, 1997 · N94CJ · Substantial damage
  > The loss of power due to carburetor icing. A factor to this accident was the carburetor heat was not accessible from within the cockpit.
- [NTSB ATL84LA046](https://openairdocs.org/ntsb/ATL84LA046.md): Bell 47-G · Middle River, MD · Accident · No injuries · Limited investigation · Final report · Nov 18, 1983 · N64816 · Substantial damage
  > While practicing hovering about 2 ft AGL the student allowed the helicoper to start drifting aft & right. The right skid heel contacted the ground & the helicopter roll onto its right side.
- [NTSB IAD77FIA23](https://openairdocs.org/ntsb/IAD77FIA23.md): Champion 7ACA · Brandywine, MD · Accident · Serious injuries · Closed · Aug 28, 1977 · N9110L · Substantial damage
- [NTSB UNK64X2725](https://openairdocs.org/ntsb/UNK64X2725.md): Cessna 120 · Laytonsville, MD · Accident · Minor injuries · Closed · Jul 9, 1964 · N2714N · Destroyed

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'MD' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=99999&state=MD

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.