# NTSB investigations: American AA-1: Loss of engine power

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 CHI07LA170](https://openairdocs.org/ntsb/CHI07LA170.md): American AA-1 · Lansing, IL · Accident · Serious injuries · Limited investigation · Final report · Jun 17, 2007 · N5651L · Substantial damage
  > The loss of engine power during takeoff-initial climb due to a bent exhaust valve and fouled spark plugs.
- [NTSB DEN04LA110](https://openairdocs.org/ntsb/DEN04LA110.md): American AA-1 · Guernsey, WY · Accident · Serious injuries · Limited investigation · Final report · Jul 25, 2004 · N5667L · Destroyed
  > the pilot's inadequate use of carburetor heat which resulted in the formation of carburetor ice and loss of engine power. Factors contributing to the accident were weather conditions conducive for carburetor icing, and a lack of suitable terrain for a forced…
- [NTSB LAX04LA022](https://openairdocs.org/ntsb/LAX04LA022.md): American AA-1 · San Martin, CA · Accident · Serious injuries · Limited investigation · Final report · Oct 22, 2003 · N5968L · Substantial damage
  > The absence of compression in two of the airplane's four cylinders, and the pilot/mechanic's failure to maintain the engine in an airworthy condition, which resulted in a loss of engine power during takeoff-initial climb, and subsequent forced landing.
- [NTSB ATL93LA149](https://openairdocs.org/ntsb/ATL93LA149.md): American AA-1 · Tuscaloosa, AL · Accident · Minor injuries · Limited investigation · Final report · Sep 4, 1993 · N5765L · Substantial damage
  > Fouled spark plugs on the number 2 and 3 cylinders, and a lack of compression on the number 1 and 4 cylinders, which resulted in a loss of engine power. A factor was the high vegetation at the forced landing site.
- [NTSB NYC83LA223](https://openairdocs.org/ntsb/NYC83LA223.md): American AA-1 · Dunkirk, NY · Accident · No injuries · Limited investigation · Final report · Aug 24, 1983 · N5686L · Substantial damage
  > At aprx 0955 EDT, the plt took off from schenectady, NY with 24 gal of fuel on board. About 2 1/2 hrs later, while on a downwind to land at Dunkirk, NY, he applied carburetor heat & then the eng lost power. The carburetor heat was shut off & a restart was…
- [NTSB CHI83FAMS1](https://openairdocs.org/ntsb/CHI83FAMS1.md): Grumman AA-1 · Manitowoc, WI · Accident · 1 fatal · Missing aircraft · Final report · Jul 9, 1983 · N6214L · Destroyed
  > The acft disappeared from radar contact while over lake Michigan. This acft had departed baltimore MD at 1142 CDT to flyto Manitowoc, WI. The last enroute stop for fuel was at muskegon mi at 2040 CDT. The weather was VMC but the night was dark. No flt plan…
- [NTSB FTW82DA352](https://openairdocs.org/ntsb/FTW82DA352.md): Grumman AA-1 · Pearland, TX · Accident · Minor injuries · Final report · Aug 29, 1982 · N5788L · Substantial damage
  > The pilot reported that during an engine run-up, before takeoff, the engine ran rough on one magneto. He did not state which. He reported that after the engine was leaned, the roughness disappeared and a takeoff was made. He stated that after lift off, thrust…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0630610')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 350))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=0630610&occurrence=350

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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.