# NTSB investigations: Beech A36: Powerplant sys/comp malf/fail

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 WPR24FA054](https://openairdocs.org/ntsb/WPR24FA054.md): Beech A36 · Topock, AZ · Accident · 1 fatal · Class 3 · Field · Final report · Dec 10, 2023 · N4171S · Substantial damage
  > The failure of the No. 4 connecting rod due to oil starvation, which resulted in a loss of engine power, inflight fire, and a subsequent off-airport emergency landing on rough desert terrain. Contributing to the accident was the pilot’s decision to attempt a…
- [NTSB CEN22LA233](https://openairdocs.org/ntsb/CEN22LA233.md): Beech A36 · Amarillo, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 4, 2022 · N9087S · Substantial damage
  > The loss of engine power due to a leak in the fuel control assembly. Contributing to the accident was the inadequate maintenance of the fuel control assembly.
- [NTSB CEN19LA055](https://openairdocs.org/ntsb/CEN19LA055.md): Beech 36 · Fredericksburg, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Jan 17, 2019 · N2021T · Destroyed
  > The loss of engine power due to fatigue failure of the crankshaft.
- [NTSB CEN18LA084](https://openairdocs.org/ntsb/CEN18LA084.md): Beech A36 · Abilene, TX · Accident · Serious injuries · Limited investigation · Final report · Jan 22, 2018 · N3600A · Substantial damage
  > Maintenance personnel’s improper maintenance of the engine, which resulted in a catastrophic engine failure due the shifting/slipping of the No. 2 bearing and the subsequent oil starvation and total loss of engine power during cruise flight.
- [NTSB CEN17LA255](https://openairdocs.org/ntsb/CEN17LA255.md): Beech A36 · El Paso, TX · Accident · No injuries · Limited investigation · Final report · Jul 4, 2017 · N24LF · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because a postaccident examination did not reveal any anomalies that would have precluded normal engine operation.
- [NTSB ERA17LA069](https://openairdocs.org/ntsb/ERA17LA069.md): Beech A36 · Shoreham, NY · Accident · No injuries · Limited investigation · Final report · Dec 11, 2016 · N69286 · Substantial damage
  > A fatigue crack of the crankshaft at the No. 4 main bearing journal.
- [NTSB WPR10FA056](https://openairdocs.org/ntsb/WPR10FA056.md): Beech A36 · San Gabriel, CA · Accident · 1 fatal · Field investigation · Final report · Nov 15, 2009 · N17803 · Substantial damage
  > Failure of the exhaust band V-clamp during cruise flight, which resulted in an in-flight fire and a subsequent forced landing.
- [NTSB CEN09LA014](https://openairdocs.org/ntsb/CEN09LA014.md): Beech A36 · Houston, TX · Accident · No injuries · Limited investigation · Final report · Oct 8, 2008 · N703KP · Destroyed
  > The total loss of engine power due to a fracture in the oil filter adapter housing. Contributing to the accident was the lack of suitable terrain for the forced landing.
- [NTSB CHI08LA154](https://openairdocs.org/ntsb/CHI08LA154.md): Beech A36 · Grand Rapids, MN · Accident · No injuries · Limited investigation · Final report · Jun 9, 2008 · N7214Y · Substantial damage
  > A loss of engine thrust due to the propeller separating from the aircraft as a result of fatigue failure of the propeller attachment bolts caused by the insufficient torque of the bolts during installation.
- [NTSB NYC08LA112](https://openairdocs.org/ntsb/NYC08LA112.md): Beech A36 · Athens, GA · Accident · No injuries · Limited investigation · Final report · Feb 26, 2008 · N623CQ · Substantial damage
  > The loss of propeller thrust due to the unseating of an internal propeller hub bushing. Contributing to the accident was the manufacturer's inadequate procedure to secure the bushing.

## 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 ('1151604')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '340' 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/340/sequence?model=1151604

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