# NTSB investigations, AK: 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 ENG26FA034](https://openairdocs.org/ntsb/ENG26FA034.md): Boeing 747 · Anchorage, AK · Incident · No injuries · Class 3 · Field · Preliminary report · Aug 15, 2026 · B-18725 · Minor damage
  > On August 15, 2026, 1755 Alaska Daylight Time, a China Airlines Flight Number CI-5265, Boeing 747-400F, registration B-18725, powered by four GE Aerospace CF6-80C2B1F turbofan engines, experienced an inflight fire indication during the initial climb from Ted…
- [NTSB ANC25LA025](https://openairdocs.org/ntsb/ANC25LA025.md): Cessna 172A · Fairbanks, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 16, 2025 · N7274T · Substantial damage
  > The pilot’s decision to initiate the flight despite identifying a malfunction in the carburetor heat system during the pre-takeoff engine run-up, which led to a partial loss of engine power during climb out. Contributing to the accident was maintenance…
- [NTSB ANC24LA025](https://openairdocs.org/ntsb/ANC24LA025.md): Cessna 120 · Talkeetna, AK · Accident · No injuries · Class 3 · Limited · Final report · Apr 21, 2024 · N77032 · Substantial damage
  > A degraded ignition system, which resulted in a total loss of engine power. Contributing to the accident was maintenance personnel’s inadequate inspection of the ignition system.
- [NTSB ANC22LA049](https://openairdocs.org/ntsb/ANC22LA049.md): Piper PA-20 · Palmer, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 20, 2022 · N7048K · Substantial damage
  > The loss of engine power due to carburetor icing and the pilot’s failure to utilize carburetor heat.
- [NTSB ANC21LA094](https://openairdocs.org/ntsb/ANC21LA094.md): Dehavilland DHC-3 · Bettles, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 21, 2021 · N560TR · Substantial damage
  > The seizure of the engine during flight for undetermined reasons, which led to a total loss of engine power.
- [NTSB ANC21LA038](https://openairdocs.org/ntsb/ANC21LA038.md): Enstrom F-28F · Palmer, AK · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2021 · N8627J · Substantial damage
  > A loss of drive to the rotor system due to the disengagement of the main belt drive tensioning system, which resulted in a forced landing. The disengagement was due to inadequate clearance between the clutch handle and the roll pin in the handle bellcrank…
- [NTSB ANC17LA007](https://openairdocs.org/ntsb/ANC17LA007.md): Piper PA-18 · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Nov 22, 2016 · N83641 · Substantial damage
  > The mechanic's failure to install a whistle slot in the engine breather tube, which resulted in a frozen tube, displacement of the crankshaft oil seal, a loss of oil, and smoke in the cockpit, which led to a forced landing.
- [NTSB ANC17LA006](https://openairdocs.org/ntsb/ANC17LA006.md): Piper PA32R · Bethel, AK · Accident · Minor injuries · Limited investigation · Final report · Nov 12, 2016 · N9084J · Substantial damage
  > A total loss of engine power due to oil starvation, which resulted from an oil cooler leak at a fractured brazed seam.
- [NTSB ANC15FA066](https://openairdocs.org/ntsb/ANC15FA066.md): Cessna 180 · Kasilof, AK · Accident · 2 fatal · Field investigation · Final report · Aug 23, 2015 · N3043E · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on postaccident examination and testing.
- [NTSB ANC14LA085](https://openairdocs.org/ntsb/ANC14LA085.md): Cessna TU206 · Deadhorse, AK · Accident · No injuries · Limited investigation · Final report · Sep 22, 2014 · N206J · Substantial damage
  > The application of insufficient torque to the engine cylinder through bolts during the replacement of the No. 1 cylinder, which resulted in the displacement of the No. 2 bearing, oil starvation, and a catastrophic engine failure.
- [NTSB ANC13LA079](https://openairdocs.org/ntsb/ANC13LA079.md): Piper PA-18-150 · Paxson, AK · Accident · No injuries · Limited investigation · Final report · Aug 13, 2013 · N44RT · Substantial damage
  > The partial loss of engine power due to a loose throttle cable clamp.
- [NTSB ANC13LA012](https://openairdocs.org/ntsb/ANC13LA012.md): Cessna 208B · Mekoryuk, AK · Accident · Minor injuries · Limited investigation · Final report · Dec 3, 2012 · N169LJ · Substantial damage
  > The total loss of engine power as a result of a fractured first-stage compressor blade due to fatigue cracking. The source of the fatigue crack could not be determined due to secondary damage sustained to the fracture surface.
- [NTSB ANC12LA075](https://openairdocs.org/ntsb/ANC12LA075.md): Piper PA-18-150 · Kenai, AK · Accident · No injuries · Limited investigation · Final report · Jul 14, 2012 · N7154Z · Substantial damage
  > The in-flight separation of a propeller tip due to an unauthorized and undocumented propeller repair.
- [NTSB ANC09LA065](https://openairdocs.org/ntsb/ANC09LA065.md): Noorduyn UC-64A · Akiachak, AK · Accident · No injuries · Limited investigation · Final report · Jul 11, 2009 · N225BL · Substantial damage
  > The loss of engine power due to the failure of a crankshaft component, resulting in an off-airport landing.
- [NTSB ANC09LA009](https://openairdocs.org/ntsb/ANC09LA009.md): Construcciones Aeronauticas CASA-212 · Toksook Bay, AK · Accident · Minor injuries · Limited investigation · Final report · Nov 2, 2008 · N437RA · Substantial damage
  > The flight crew’s inability to adjust/increase power to the right engine during the landing approach due to an in-flight disconnect of the engine power control linkage, resulting in a loss of control of the airplane. Contributing to the accident was the…
- [NTSB ANC08LA097](https://openairdocs.org/ntsb/ANC08LA097.md): Piper PA-31-350 · Aniak, AK · Accident · Serious injuries · Limited investigation · Final report · Aug 4, 2008 · N40YR · Substantial damage
  > A partial loss of engine power during takeoff due to a failure of the left engine's turbocharger as a result of the failure of a turbine shaft bearing. Contributing to the accident was unsuitable terrain for a forced landing.
- [NTSB ANC08IA092](https://openairdocs.org/ntsb/ANC08IA092.md): Saab-Scania Saab 340B · Anchorage, AK · Incident · No injuries · Incident investigation · Final report · Jul 29, 2008 · N364PX · No damage
  > The failure of one of the stage 1 gas generator rotor blades due to high-cycle fatigue, resulting in a contained engine failure during the takeoff roll.
- [NTSB ANC08LA089](https://openairdocs.org/ntsb/ANC08LA089.md): Dehavilland DHC-3 · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Jul 22, 2008 · N61FE · Substantial damage
  > A total loss of engine power due to the separation of the number 8 cylinder from the engine, which separated an oil line, resulting in a loss of oil and oil pressure. Contributing to the accident was the float-equipped airplane's forced landing on a road.

## 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" = 'AK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '340')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/340/cases?state=AK

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