# NTSB investigations: 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.

Page 12 of 13 · 628 cases

## Cases, newest first

- [NTSB ERA09LA502](https://openairdocs.org/ntsb/ERA09LA502.md): M-Squared Sprint 1000 · Madeira Beach, FL · Accident · 2 fatal · Limited investigation · Final report · Sep 5, 2009 · N185SQ · Substantial damage
  > A loss of torque to the gearbox engine-side coupling flange bolts, which resulted in separation of the gearbox and propeller from the engine and the subsequent severing of the airplane's tail structure.
- [NTSB ERA09LA477](https://openairdocs.org/ntsb/ERA09LA477.md): Vollenweider R/Hurst R F Vans RV-9A · Marianna, FL · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2009 · N362TS · Substantial damage
  > Failure of the propeller speed reduction gearbox for undetermined reasons. Contributing to the accident was the pilot’s decision to disregard the manufacturer's mandate to replace the gearbox, the manufacturer's failure to provide owners with technical…
- [NTSB CEN09LA602](https://openairdocs.org/ntsb/CEN09LA602.md): Air Tractor AT-301A · New Miner, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 22, 2009 · N3651R · Substantial damage
  > A total loss of engine power due to the fatigue failure of the engine torsion shaft. Contributing to the accident was the chrome plating of the shaft by an undetermined maintenance/overhaul facility.
- [NTSB WPR09CA415](https://openairdocs.org/ntsb/WPR09CA415.md): Paul B. Johnson Avid Mark IV · Nampa, ID · Accident · No injuries · Data collection · Final report · Aug 21, 2009 · N333PD · Substantial damage
  > The airplane's encounter with tall vegetation that ensnared the landing gear during an off-field precautionary landing.
- [NTSB ERA09LA446](https://openairdocs.org/ntsb/ERA09LA446.md): Lobb Kenneth CH 701 · Murfreesboro, TN · Accident · No injuries · Limited investigation · Final report · Aug 7, 2009 · N75644 · Substantial damage
  > A total loss of engine power due to the improper installation of the alternator drive gear.
- [NTSB WPR09LA373](https://openairdocs.org/ntsb/WPR09LA373.md): Grumman G164 · Riverdale, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 28, 2009 · N8741H · Substantial damage
  > The partial loss of engine power due to the failure of the engine's supercharger-blower.
- [NTSB CEN09LA494](https://openairdocs.org/ntsb/CEN09LA494.md): Crisman Flightstar Iisc · Malta, IL · Accident · No injuries · Limited investigation · Final report · Jul 24, 2009 · N5008E · Substantial damage
  > The loss of engine power due to the separation of the flywheel, resulting in a high-cycle fatigue fracture of the crankshaft following takeoff, which resulted in a forced landing on an agricultural field.
- [NTSB ERA09LA409](https://openairdocs.org/ntsb/ERA09LA409.md): Cessna 170B · Mahwah, NJ · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 2009 · N8339A · Substantial damage
  > A loss of engine power due to the failure of the No. 1 cylinder thru bolt hold down nuts due to corrosion.
- [NTSB CEN09IA456](https://openairdocs.org/ntsb/CEN09IA456.md): Cessna 172R · West Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jul 19, 2009 · N77AF · No damage
  > A partial loss of engine power due to the detachment of the throttle control cable from the throttle assembly during a landing approach. Contributing to the accident was the lack of a redundant means to preclude the detachment of the cable from the throttle…
- [NTSB ERA09LA399](https://openairdocs.org/ntsb/ERA09LA399.md): Cessna 172N · Rochester, MA · Accident · No injuries · Limited investigation · Final report · Jul 12, 2009 · N4773G · Substantial damage
  > An engine vibration as reported by the pilot, for undetermined reasons.
- [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 CEN09CA406](https://openairdocs.org/ntsb/CEN09CA406.md): North American T-28B · Waxahachie, TX · Accident · Serious injuries · Data collection · Final report · Jul 4, 2009 · N28NB · Substantial damage
  > The total loss of engine power for undetermined reasons.
- [NTSB CEN09LA403](https://openairdocs.org/ntsb/CEN09LA403.md): Ayres S2R-G6 · Ainsworth, IA · Accident · Serious injuries · Limited investigation · Final report · Jul 1, 2009 · N60015 · Substantial damage
  > A component failure of the fuel control unit, which resulted in a loss of engine power.
- [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 ERA09LA360](https://openairdocs.org/ntsb/ERA09LA360.md): Robinson R22 · Del Ray Beach, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 21, 2009 · N2306T · Substantial damage
  > An in-flight failure of the main drive vee belts.
- [NTSB WPR09CA303](https://openairdocs.org/ntsb/WPR09CA303.md): Cessna A188B · Ogden, UT · Accident · No injuries · Data collection · Final report · Jun 20, 2009 · N731GE · Substantial damage
  > A partial loss of engine power due to the number one cylinder air induction tube becoming disconnected for undetermined reasons.
- [NTSB ERA09IA331](https://openairdocs.org/ntsb/ERA09IA331.md): Cirrus Design SR22 · Elkin, NC · Incident · No injuries · Incident investigation · Final report · Jun 9, 2009 · N34TG · Minor damage
  > A total loss of engine power due to the failure of the No. 2 piston as a result of a fatigue crack of undetermined origin.
- [NTSB CEN09LA288](https://openairdocs.org/ntsb/CEN09LA288.md): Smysor Kevin Velocity · Katy, TX · Accident · 1 fatal · Limited investigation · Final report · May 9, 2009 · N45YV · Substantial damage
  > The pilot's loss of control following an in-flight failure of the propeller.
- [NTSB CEN09CA283](https://openairdocs.org/ntsb/CEN09CA283.md): Gulfstream-Schweizer A/C Gulfstream · Iowa, LA · Accident · No injuries · Data collection · Final report · May 7, 2009 · N8080K · Destroyed
  > A partial loss of engine power due to the Number 8 cylinder head cracking and separating from the barrel.
- [NTSB ERA09LA269](https://openairdocs.org/ntsb/ERA09LA269.md): Cessna 208 · Frederick, MD · Accident · No injuries · Limited investigation · Final report · Apr 21, 2009 · N208JW · Substantial damage
  > A loss of engine power due to the failure of one or more compressor turbine blades for an undetermined reason.
- [NTSB ERA09FA248](https://openairdocs.org/ntsb/ERA09FA248.md): Cessna 421B · Oakland Park, FL · Accident · 1 fatal · Field investigation · Final report · Apr 17, 2009 · N1935G · Substantial damage
  > The pilot's failure to maintain aircraft control and secure the right engine during an emergency return to the airport after takeoff. Contributing to the accident was an in-flight fire of the right engine for undetermined reasons.
- [NTSB WPR09LA196](https://openairdocs.org/ntsb/WPR09LA196.md): Cessna 152 · Glendale, AZ · Accident · Minor injuries · Limited investigation · Final report · Apr 15, 2009 · N6285M · Substantial damage
  > A loss of engine power due to the failure of both magnetos resulting from an improper maintenance repair by maintenance personnel.
- [NTSB WPR09LA145](https://openairdocs.org/ntsb/WPR09LA145.md): Cessna 172R · Oceanside, CA · Accident · Serious injuries · Limited investigation · Final report · Mar 8, 2009 · N2478B · Substantial damage
  > A total loss of engine power in flight due to the fatigue failure of the No. 4 cylinder.
- [NTSB CEN09CA162](https://openairdocs.org/ntsb/CEN09CA162.md): Cameron Balloons V-77 · Terre Haute, IN · Accident · Minor injuries · Data collection · Final report · Feb 8, 2009 · N7524J · Substantial damage
  > The loss of the burner pilot light during approach to the landing area and the pilot's failure to relight the burner using alternate sources.
- [NTSB ERA09CA162](https://openairdocs.org/ntsb/ERA09CA162.md): Davis Sonex · Crossville, TN · Accident · Minor injuries · Data collection · Final report · Feb 6, 2009 · N555SX · Substantial damage
  > A total loss of engine power during initial climb due to the failure of the ignition power supply as a result of the improper installation of the electronic control unit.
- [NTSB ERA09CA149](https://openairdocs.org/ntsb/ERA09CA149.md): D-Fly UL Stork · Jackson, GA · Accident · No injuries · Data collection · Final report · Jan 31, 2009 · N620KJ · Substantial damage
  > The pilot's inadvertent activation of an engine cutoff switch during cruise flight.
- [NTSB ERA09LA146](https://openairdocs.org/ntsb/ERA09LA146.md): Cessna 152 · Wauchula, FL · Accident · No injuries · Limited investigation · Final report · Jan 18, 2009 · N6566P · Substantial damage
  > A loss of engine power due to failure of the Number 3 connecting rod due to oil contamination. Contributing to the accident was the insufficient oil change time intervals performed by company personnel.
- [NTSB WPR09LA085](https://openairdocs.org/ntsb/WPR09LA085.md): Air Tractor AT-301 · Beaver, UT · Accident · Minor injuries · Limited investigation · Final report · Jan 15, 2009 · N3170C · Substantial damage
  > A loss of engine power while maneuvering due to a sheared propeller blade's pitch change link. Contributing to the accident was lack of suitable terrain for the forced landing.
- [NTSB CEN09LA132](https://openairdocs.org/ntsb/CEN09LA132.md): Grumman American Avn. AA-5B · Milford, IN · Accident · No injuries · Limited investigation · Final report · Jan 5, 2009 · N28862 · Substantial damage
  > A loss of engine thrust due to the separation of a section of one of the propeller blades as a result of fatigue failure of the propeller because of corrosion. Contributing to the accident was the failure of the mechanic to detect and address the propeller…
- [NTSB ENG09IA002](https://openairdocs.org/ntsb/ENG09IA002.md): Boeing 777 · Atlanta, GA · Incident · No injuries · Incident investigation · Final report · Jan 2, 2009 · N864DA · Minor damage
  > The fan blade fractured due to a fatigue crack that was the result of the combination of the breakdown of the fan blade lubrication system and residual fatigue life usage following the last overhaul of the fan blade. Contributing to the fracture was the…
- [NTSB ERA09LA108](https://openairdocs.org/ntsb/ERA09LA108.md): Beech E18S · Fort Myers, FL · Accident · Serious injuries · Limited investigation · Final report · Dec 27, 2008 · N7765N · Substantial damage
  > The failure of the right propeller to go to the feathered position for undetermined reasons following a total loss of right engine power during initial climb due to fuel starvation as a result of the pilot's improper fuel planning.
- [NTSB ERA09LA072](https://openairdocs.org/ntsb/ERA09LA072.md): Leroy Lakey Corben ACE · Cherryville, NC · Accident · Serious injuries · Limited investigation · Final report · Nov 26, 2008 · N13LL · Substantial damage
  > A throttle control malfunction during initial climb, as reported by the pilot.
- [NTSB CEN09CA080](https://openairdocs.org/ntsb/CEN09CA080.md): Beech E35 · Bloomington, IN · Accident · No injuries · Data collection · Final report · Nov 20, 2008 · N3213C · Substantial damage
  > A partial loss of engine power due to a failure of the number one cylinder exhaust valve, and the associated secondary damage to the intake valve and piston.
- [NTSB ERA09LA062](https://openairdocs.org/ntsb/ERA09LA062.md): Cirrus Design SR20 · Green Cove Springs, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 19, 2008 · N389CP · Substantial damage
  > The fusing of an electrical cable from the No. 2 (standby) alternator with the throttle cable resulting in the flight crew’s inability to move the throttle control. Contributing to the accident was the failure of maintenance personnel to detect inadequate…
- [NTSB ERA09CA054](https://openairdocs.org/ntsb/ERA09CA054.md): Snow 600 · Nashville, TN · Accident · No injuries · Data collection · Final report · Nov 14, 2008 · N1691S · Substantial damage
  > The failure of the propeller shaft seal in flight. Contributing to the accident was the lack of suitable terrain for a forced landing.
- [NTSB ERA09LA047](https://openairdocs.org/ntsb/ERA09LA047.md): Bell 206B · Boynton Beach, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 11, 2008 · N281CB · Substantial damage
  > A loss of engine power due to an undertorqued air line fitting to the fuel control.
- [NTSB ERA09CA040](https://openairdocs.org/ntsb/ERA09CA040.md): Fox Jack G Mong Biwin · Thomasville, NC · Accident · Minor injuries · Data collection · Final report · Nov 2, 2008 · N318CF · Substantial damage
  > The builder’s failure to set adequate propeller pitch during propeller installation.
- [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 WPR09LA013](https://openairdocs.org/ntsb/WPR09LA013.md): Piper PA-31-350 · Portland, OR · Accident · No injuries · Limited investigation · Final report · Oct 14, 2008 · N3BT · Substantial damage
  > An in-flight engine fire due to the fatigue fracture of an exhaust pipe that resulted from a failure of the pipe's slip joint.
- [NTSB DEN08LA163](https://openairdocs.org/ntsb/DEN08LA163.md): Beech C23 · Duncan, OK · Accident · Minor injuries · Limited investigation · Final report · Sep 28, 2008 · N6714E · Substantial damage
  > A total loss of engine power due to the fatigue failure of the engine crankshaft. Contributing to the accident were the improper maintenance to the engine crankshaft, improper reassembly of the engine, and failure to follow the engine manufacturer's overhaul…
- [NTSB MIA08LA196](https://openairdocs.org/ntsb/MIA08LA196.md): Cessna 120 · Jesup, GA · Accident · No injuries · Limited investigation · Final report · Sep 19, 2008 · N77068 · Substantial damage
  > An oil starvation-induced catastrophic engine failure due to the improper installation of the crankshaft expansion plug during engine overhaul.
- [NTSB DFW08CA236](https://openairdocs.org/ntsb/DFW08CA236.md): Piper PA-32R-300 · Augusta, KS · Accident · No injuries · Data collection · Final report · Sep 18, 2008 · N6822J · Substantial damage
  > A loose oil line that resulted in a total loss of engine oil, causing the engine to cease.
- [NTSB CHI08CA284](https://openairdocs.org/ntsb/CHI08CA284.md): Fleet 2 · Leroy, OH · Accident · No injuries · Data collection · Final report · Sep 17, 2008 · N764V · Substantial damage
  > The loss of engine power due to the propeller hub failure during a low-level maneuver. Contributing to the accident were the trees encountered during the forced landing.
- [NTSB SEA08GA194](https://openairdocs.org/ntsb/SEA08GA194.md): Lockheed P2V-7 · Reno, NV · Accident · 3 fatal · Final report · Sep 2, 2008 · N4235T · Destroyed
  > The failure of the flight crew to maintain airspeed above in-flight minimum control speed (Vmca) after losing power in the left jet engine during initial climb after takeoff. Contributing to the accident was the crew's inadequate cockpit resource management…
- [NTSB MIA08CA178](https://openairdocs.org/ntsb/MIA08CA178.md): Dehavilland DH82A · Sevierville, TN · Accident · No injuries · Data collection · Final report · Aug 30, 2008 · N80660 · Substantial damage
  > The failure of the wooden propeller.
- [NTSB DFW08CA211](https://openairdocs.org/ntsb/DFW08CA211.md): Murray Frank H DA5B · Odessa, TX · Accident · No injuries · Data collection · Final report · Aug 21, 2008 · N1002W · Substantial damage
  > Failure of the intake manifold when the flexible connectors disconnected from the carburetor after a turbulence encounter. Contributing to the accident was insuitable terrain for a forced landing.
- [NTSB LAX08LA268](https://openairdocs.org/ntsb/LAX08LA268.md): Rouse Glasair III · Reno, NV · Accident · No injuries · Limited investigation · Final report · Aug 16, 2008 · N1YZ · Substantial damage
  > The excessively worn throttle/mixture linkage arms and pins and a missing mixture control linkage spring washer, which resulted in a loss of power due to an excessively rich mixture.
- [NTSB ENG08IA038](https://openairdocs.org/ntsb/ENG08IA038.md): Boeing 757 · Las Vegas, NV · Incident · No injuries · Incident investigation · Final report · Aug 6, 2008 · N666DN · No damage
  > The engine experienced an uncontained release of high pressure turbine material due to fatigue cracks that occurred on four consecutive blade retainig lugs on the 2nd stage turbine hub. The cracked lugs resulted in the release of four 2nd stage turbine blades…
- [NTSB DEN08CA135](https://openairdocs.org/ntsb/DEN08CA135.md): Grumman G-164A · Walsh, CO · Accident · No injuries · Data collection · Final report · Aug 6, 2008 · N7487 · Substantial damage
  > The total failure of a cylinder head assembly. Contributing to the accident was the lack of suitable terrain for a forced landing.
- [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.

Next page: https://openairdocs.org/ntsb-events/340/cases.md?page=13

## 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 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?page=12

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