# NTSB investigations, MD: Aircraft maintenance event

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 ERA16FA329](https://openairdocs.org/ntsb/ERA16FA329.md): Cessna 172 · Laytonsville, MD · Accident · 1 fatal · Field investigation · Final report · Sep 27, 2016 · N52126 · Destroyed
  > The pilot/mechanic's failure to maintain airspeed following a loss of engine power, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Also causal was the pilot/mechanic's failure to service the engine…
- [NTSB GAA16CA088](https://openairdocs.org/ntsb/GAA16CA088.md): Day William L Minicoupe · Middle River, MD · Accident · No injuries · Data collection · Final report · Dec 20, 2015 · N853WD · Substantial damage
  > The pilot's incorrect installation of the rudder horn and failure to properly inspect the installation, which led to a loss of directional control during takeoff.
- [NTSB ERA15LA123](https://openairdocs.org/ntsb/ERA15LA123.md): American AA-1 · Fort Meade, MD · Accident · Serious injuries · Limited investigation · Final report · Feb 8, 2015 · N6116L · Substantial damage
  > The mechanic’s failure to detect the incorrect dry valve tappet clearances while troubleshooting ongoing engine issues, which resulted in partial loss of engine power during takeoff. Contributing to the partial loss of engine power was the mechanic's failure…
- [NTSB ERA12FA395](https://openairdocs.org/ntsb/ERA12FA395.md): Remos Acft Gmbh Flugzeugbau Remos GX · Westminster, MD · Accident · 1 fatal · Field investigation · Final report · Jun 15, 2012 · N206GX · Substantial damage
  > The pilot's inadequate preflight inspection, which failed to ensure that the elevator quick-fastener was properly secured, resulting in an inflight elevator control disconnect and subsequent loss of control during the ensuing emergency landing. Contributing…
- [NTSB ERA10LA400](https://openairdocs.org/ntsb/ERA10LA400.md): Dayton JD-2 · Hollywood, MD · Accident · No injuries · Limited investigation · Final report · Aug 5, 2010 · N43015 · Substantial damage
  > The pilot's improper installation of the propeller hub to the engine crankshaft, which resulted in a loss of engine thrust.
- [NTSB ERA09LA491](https://openairdocs.org/ntsb/ERA09LA491.md): Myers Donald E Kitfox 4 · Flintstone, MD · Accident · Minor injuries · Limited investigation · Final report · Aug 30, 2009 · N69377 · Substantial damage
  > A total loss of engine power due to the lack of sufficient lubrication and the pilot/owner’s failure to adequately service the airplane’s engine.
- [NTSB ERA09LA057](https://openairdocs.org/ntsb/ERA09LA057.md): Campbell Earl S JR RV-6A · Cambridge, MD · Accident · No injuries · Limited investigation · Final report · Oct 26, 2008 · N914ES · 2 aircraft · Minor damage
  > The failure of the RV-6A's right brake assembly o-ring due to excessive heat.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '040' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/040/sequence?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.