# NTSB investigations, CT: Loss of engine power(partial) - mech failure/malf

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 NYC06LA219](https://openairdocs.org/ntsb/NYC06LA219.md): Beech F33A · South Windsor, CT · Accident · Minor injuries · Limited investigation · Final report · Sep 7, 2006 · N3708B · Substantial damage
  > A loosening of the fuel injector lines from the fuel manifold valve, which resulted in a partial loss of engine power.
- [NTSB NYC02LA169](https://openairdocs.org/ntsb/NYC02LA169.md): Bellanca 8GCBC · Guilford, CT · Accident · No injuries · Limited investigation · Final report · Aug 17, 2002 · N86714 · Substantial damage
  > Fatigue cracking of the number 3 cylinder head. A factor was the presence of protruding material on the cylinder barrel.
- [NTSB IAD01LA068](https://openairdocs.org/ntsb/IAD01LA068.md): Grumman American AA-5A · Danbury, CT · Accident · Minor injuries · Limited investigation · Final report · Jun 9, 2001 · N27221 · Substantial damage
  > the pilot's misjudged altitude and excessive airspeed resulting in a collision with a pole. A factor was the cracked exhaust stack, which resulted in a partial loss of engine power.
- [NTSB NYC99LA065](https://openairdocs.org/ntsb/NYC99LA065.md): Stinson 108-3 · Bristol, CT · Accident · No injuries · Limited investigation · Final report · Feb 21, 1999 · N6191M · Substantial damage
  > The partial loss of power due to the failure of a fatigued connecting rod bolt.
- [NTSB BFO93LA010](https://openairdocs.org/ntsb/BFO93LA010.md): Piper PA-28-151 · Willimantic, CT · Accident · No injuries · Limited investigation · Final report · Nov 18, 1992 · N8431F · Substantial damage
  > A cracked no. 2 engine cylinder, and the pilot's failure to attain the proper touchdown point during the forced landing, due to excessive airspeed, which resulted in an overrun of the runway. A factor related to the accident was an improper weld repair on the…
- [NTSB BFO92LA090](https://openairdocs.org/ntsb/BFO92LA090.md): Cessna 152 · Woodstock, CT · Accident · Minor injuries · Limited investigation · Final report · Jul 7, 1992 · N68215 · Substantial damage
  > The loss of engine power due to a cracked cylinder and the inadvertent aerodynamic stall that occurred during the precuationary landing.
- [NTSB NYC91LA249](https://openairdocs.org/ntsb/NYC91LA249.md): Davis D1K · Chester, CT · Accident · No injuries · Limited investigation · Final report · Sep 29, 1991 · N158Y · Substantial damage
  > Improper maintenance on the engine which resulted in a power loss due to a stuck exhaust valve and subsequent forced landing in unsuitable terrain.
- [NTSB NYC91DNE01](https://openairdocs.org/ntsb/NYC91DNE01.md): Craig A. Gordon Teenie TWO · Oxford, CT · Accident · No injuries · Final report · Nov 16, 1990 · N199MG · Substantial damage
  > The failure of the pilot to maintain airspeed which resulted in an inadvertent stall and hard landing. Factors related to the accident were: the power loss and improper maintenance on the engine.
- [NTSB NYC91FA006](https://openairdocs.org/ntsb/NYC91FA006.md): Cessna 152 · Griswold, CT · Accident · 2 fatal · Field investigation · Final report · Oct 8, 1990 · N4708M · Destroyed
  > A broken ehaust valve spring that resulted in a partial loss of power. Factors related to the accident were: darkness, lack of suitable terrain, and failure of the occupants to use their shoulder harnesses.
- [NTSB NYC90LA008](https://openairdocs.org/ntsb/NYC90LA008.md): Cessna 150 · Madison, CT · Accident · No injuries · Limited investigation · Final report · Oct 9, 1989 · N50165 · Substantial damage
  > A loss of engine power, due to a stuck exhaust valve in the number 4 cylinder. Factors related to the accident were: the pilot's excessive airspeed on final approach, and his failure to attain the proper touchdown point during the landing.
- [NTSB NYC88LA031](https://openairdocs.org/ntsb/NYC88LA031.md): Cessna 172 · Stamford, CT · Accident · No injuries · Limited investigation · Final report · Nov 5, 1987 · N9538L · Substantial damage
  > The instructor (CFI) reported that the aircraft had just reached the top of a climb at 2500 ft when the engine lost power. An off airport landing was made on a golf course. During the landing, the wings struck trees and the aircraft was damaged. The golf…
- [NTSB NYC85LA177](https://openairdocs.org/ntsb/NYC85LA177.md): Sikorsky S-76A · Hartford, CT · Accident · No injuries · Limited investigation · Final report · Jul 14, 1985 · N3124L · Substantial damage
  > The apch to the pvt helipad was uneventful up to the last 100 ft where the plts noticed a high sink rate. The plt increased collective to correct for the situation. At about 20 ft from touchdown point the plt noticed a decrease in RPM and realized that they…

## 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" = 'CT' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=352&state=CT

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