# NTSB investigations, AR: 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 CEN22LA085](https://openairdocs.org/ntsb/CEN22LA085.md): Beech A100 · West Helena, AR · Accident · No injuries · Class 3 · Limited · Final report · Dec 28, 2021 · N93GT · Substantial damage
  > The malfunction of the propeller autofeather system after takeoff for undetermined reasons, which resulted in both propellers going into feather and a hard landing.
- [NTSB CEN20LA109](https://openairdocs.org/ntsb/CEN20LA109.md): Air Tractor AT 602 · Dumas, AR · Accident · No injuries · Class 3 · Limited · Final report · Feb 25, 2020 · N5197Y · Substantial damage
  > The pilot’s failure to maintain clearance from a power line pole during a low-level aerial application flight, which resulted in impact with the bracket and a subsequent forced landing.
- [NTSB CEN19LA146](https://openairdocs.org/ntsb/CEN19LA146.md): Sikorsky S76 · Morrilton, AR · Accident · No injuries · Class 3 · Limited · Final report · May 15, 2019 · N761AF · Substantial damage
  > The improper securing of the exhaust duct bolts, which resulted in the duct becoming unseated and substantial heat damage to the tail rotor drive shaft.
- [NTSB CEN16IA091](https://openairdocs.org/ntsb/CEN16IA091.md): Mitsubishi MU 300 · Little Rock, AR · Incident · No injuries · Incident investigation · Final report · Jan 12, 2016 · N200LP · Minor damage
  > The flight crew's inadequate preflight inspection of the airplane, during which they failed to see a fueling mat that had been placed on the inboard trailing edge of the right wing, which the right engine subsequently ingested during the takeoff roll.…
- [NTSB CEN16LA026](https://openairdocs.org/ntsb/CEN16LA026.md): Cirrus Design SR22T · Fayetteville, AR · Accident · Minor injuries · Limited investigation · Final report · Nov 3, 2015 · N857SW · Substantial damage
  > The fatigue failure of the oil cooler cross fitting, which resulted in engine oil starvation and a total loss of engine power.
- [NTSB CEN15LA270](https://openairdocs.org/ntsb/CEN15LA270.md): Piper PA28-200 · Jonesboro, AR · Accident · No injuries · Limited investigation · Final report · Jun 10, 2015 · N872CS · Substantial damage
  > Maintenance personnel's improper engine oil drain valve installation, which led to engine oil exhaustion and the subsequent loss of engine power after takeoff at an altitude too low for the pilot to execute a forced landing in a suitable area.
- [NTSB CEN15LA233](https://openairdocs.org/ntsb/CEN15LA233.md): Cessna T206H · Piggott, AR · Accident · Minor injuries · Limited investigation · Final report · May 15, 2015 · N164CS · Substantial damage
  > The loss of engine power due to a malfunctioning magneto. Contributing to the accident was maintenance personnel's improper use of a drill bit instead of a timing pin during magneto installation, which resulted in a section of the drill bit breaking off and…
- [NTSB CEN14LA204](https://openairdocs.org/ntsb/CEN14LA204.md): Cessna 210A · Searcy, AR · Accident · Minor injuries · Limited investigation · Final report · Apr 18, 2014 · N9421X · Substantial damage
  > The pilot's inadequate preflight inspection of the airplane, which resulted in oil starvation and a subsequent engine failure.
- [NTSB CEN11LA460](https://openairdocs.org/ntsb/CEN11LA460.md): Ayres S2R600 · Pine Bluff, AR · Accident · No injuries · Limited investigation · Final report · Jul 6, 2011 · N3101S · Substantial damage
  > The use of an incorrect mounting bolt by maintenance persons to attach the engine torque sensor, which resulted in an internal failure of the torque sensor and subsequent loss of engine power due to fuel starvation.
- [NTSB CEN11LA404](https://openairdocs.org/ntsb/CEN11LA404.md): Ayres S2R-T34 · Athleimer, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 2011 · N30902 · Substantial damage
  > Failure of the first stage planetary gearset in the propeller reduction gearbox, which resulted in catastrophic engine failure. Contributing to the failure was the misrepresentation of the gearset being zero-timed by the company that sold the gearset to the…
- [NTSB CEN09LA401](https://openairdocs.org/ntsb/CEN09LA401.md): Air Tractor AT-602 · Knobel, AR · Accident · No injuries · Limited investigation · Final report · Jun 30, 2009 · N5192T · Substantial damage
  > The failure of the P-3 tube resulting in the loss of engine power.
- [NTSB CEN09CA140](https://openairdocs.org/ntsb/CEN09CA140.md): Cessna 172M · Little Rock, AR · Accident · No injuries · Data collection · Final report · Jan 22, 2009 · N20275 · Substantial damage
  > The loss of engine power due to the missing nut on the bolt connecting the throttle cable and carburetor's lever arm.

## 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" = 'AR' 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" = '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?state=AR

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