# 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 3 of 17 · 821 cases

## Cases, newest first

- [NTSB ENG24WA030](https://openairdocs.org/ntsb/ENG24WA030.md): Boeing 737-700 · Kigali, Rwanda · Occurrence · Class 5 · Foreign · Aug 4, 2024 · 9XR-WK · No damage
- [NTSB ERA24LA333](https://openairdocs.org/ntsb/ERA24LA333.md): Cirrus Design SR20 · Egg Harbor City, NJ · Accident · No injuries · Class 3 · Limited · Final report · Jul 31, 2024 · N124RR · Substantial damage
  > A partial loss of engine power due to the fatigue failure of the alternate air valve, which separated and partially obstructed the engine’s induction system.
- [NTSB GAA24WA263](https://openairdocs.org/ntsb/GAA24WA263.md): Piper PA46 · Narsarsuaq, Denmark · Accident · Minor injuries · Class 5 · Foreign · Jul 29, 2024 · D-EOSE
- [NTSB ERA24LA330](https://openairdocs.org/ntsb/ERA24LA330.md): Raytheon A36 · Naples, FL · Accident · No injuries · Class 3 · Limited · Final report · Jul 29, 2024 · N934PC · Substantial damage
  > Contamination of the airplane’s fuel system with debris, which resulted in restricted fuel flow through multiple fuel injectors and the subsequent partial loss of engine power.
- [NTSB WPR24LA261](https://openairdocs.org/ntsb/WPR24LA261.md): Aeronca 11AC · Winchester, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 27, 2024 · N86270 · Substantial damage
  > A total loss of engine power due to a fatigue fracture of the crankshaft.
- [NTSB WPR24LA260](https://openairdocs.org/ntsb/WPR24LA260.md): Kitfox Series V · La Grande, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2024 · N53562 · Substantial damage
  > Separation of the propeller blades from progressive damage at the blade roots due to overtightening of the hub bolts.
- [NTSB ERA24FA310](https://openairdocs.org/ntsb/ERA24FA310.md): Williams John Titan T-51 Mustang · Geneva, OH · Accident · 1 fatal · Class 3 · Field · Final report · Jul 21, 2024 · N751TX · Substantial damage
  > A sudden propeller overspeed and subsequent separation of the propeller blades and hub, while maneuvering at high speed and at low altitude, which resulted in a collision with a tree during the subsequent forced landing attempt.
- [NTSB CEN24LA269](https://openairdocs.org/ntsb/CEN24LA269.md): Piper PA-36-375 · Avoca, NE · Accident · No injuries · Class 3 · Limited · Final report · Jul 16, 2024 · N2386X · Substantial damage
  > A partial loss of engine power due to the loose left magneto which resulted in erratic engine timing.
- [NTSB WPR24LA229](https://openairdocs.org/ntsb/WPR24LA229.md): Cessna 172N · San Diego, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 2, 2024 · N74C · Substantial damage
  > A failure of the No. 2 cylinder due to fatigue cracking as the result of an undersized fillet radius around the edge of the cylinder head dome.
- [NTSB CEN24LA242](https://openairdocs.org/ntsb/CEN24LA242.md): Cessna 310R · Duluth, MN · Accident · No injuries · Class 3 · Limited · Final report · Jun 27, 2024 · N5080J · Substantial damage
  > The failure of the left engine induction coupling during takeoff, which resulted in a total loss of left engine power and an uncommanded left yaw/roll due to asymmetrical thrust and increased drag, from which the pilot had insufficient altitude to recover…
- [NTSB ERA24LA276](https://openairdocs.org/ntsb/ERA24LA276.md): Snyder Searey · New Ipswich, NH · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 25, 2024 · N453TS · Substantial damage
  > A total loss of engine power due to the exhaust muffler and tailpipe assembly separating from its attach points and impacting the propeller.
- [NTSB WPR24LA205](https://openairdocs.org/ntsb/WPR24LA205.md): Replica PA-12 Replica · Douglas, WY · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 22, 2024 · N406Z · Substantial damage
  > A loss of power due to fuel exhaustion as a result of the pilot’s failure to calibrate the fuel flow indicator.
- [NTSB WPR24LA210](https://openairdocs.org/ntsb/WPR24LA210.md): Lancair LC42-550FG · Humboldt Bay, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 20, 2024 · N141PB · Substantial damage
  > Maintenance personnel’s incorrect installation of an engine rocker cover gasket, which resulted in oil exhaustion and subsequent loss of engine power during the initial climb.
- [NTSB ENG24WA029](https://openairdocs.org/ntsb/ENG24WA029.md): BAE Jetstream 3100 · Santo António, São Tomé & Príncipe · Incident · Class 3 · Foreign · Jun 19, 2024 · CS-DVQ · No damage
- [NTSB CEN24FA218](https://openairdocs.org/ntsb/CEN24FA218.md): Cessna 172 · Gainesville, TX · Accident · 1 fatal · Class 3 · Field · Final report · Jun 12, 2024 · N656MA · Substantial damage
  > The fuel pump manufacturer’s improper torquing of screws on the engine-driven fuel pump, which resulted in a disruption in the fuel system and a loss of engine power on initial climb.
- [NTSB ENG25WA006](https://openairdocs.org/ntsb/ENG25WA006.md): De Havilland DHC6 · Kikori, Papua New Guinea · Incident · Class 5 · Foreign · Jun 8, 2024 · P2-BBM · Minor damage
- [NTSB ERA24LA239](https://openairdocs.org/ntsb/ERA24LA239.md): Cessna 150 · San Juan, PR · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 1, 2024 · N6198K · Substantial damage
  > A partial loss of engine power due to the failure of the No. 2 cylinder rocker shaft bosses from fatigue cracking.
- [NTSB ERA24LA230](https://openairdocs.org/ntsb/ERA24LA230.md): Piper PA-28-151 · Hope Mills, NC · Accident · Serious injuries · Class 3 · Limited · Final report · May 26, 2024 · N33563 · Substantial damage
  > A loss of engine performance due to carbon fouling of three spark plugs that, when combined with the airplane’s high gross weight condition, resulted in a collision with trees and terrain.
- [NTSB DCA24LA200](https://openairdocs.org/ntsb/DCA24LA200.md): Aergility Atlis 1 · Dunnellon, FL · Accident · No injuries · Class 4 · Limited · Final report · May 24, 2024 · N237KG · Substantial damage
  > An intermittent electrical failure that switched two motor controllers off, resulting in a loss of hover capability and impact with the ground.
- [NTSB CEN24LA211](https://openairdocs.org/ntsb/CEN24LA211.md): Cessna 172RG · Chandeleur Island, LA · Accident · No injuries · Class 3 · Limited · Final report · May 22, 2024 · N751DW · Substantial damage
  > A fatigue failure of the engine oil pressure line, which resulted in the loss of engine oil during the flight and subsequent damage to the nose landing gear support structure during the precautionary landing.
- [NTSB CEN24LA193](https://openairdocs.org/ntsb/CEN24LA193.md): Air Tractor AT-502 · Covert, KS · Accident · No injuries · Class 3 · Limited · Final report · May 19, 2024 · N15189 · Substantial damage
  > The improper maintenance of the fuel control unit, which resulted in air leakage and a loss of control of fuel flow to the engine.
- [NTSB DCA24WA194](https://openairdocs.org/ntsb/DCA24WA194.md): Airbus A320 · Bengaluru, India · Incident · No injuries · Class 5 · Foreign · May 18, 2024 · VT-ATF · Minor damage
- [NTSB ENG24WA019](https://openairdocs.org/ntsb/ENG24WA019.md): Boeing 737-852 · Merida, Mexico · Incident · Class 5 · Foreign · May 16, 2024 · N825AM · No damage
- [NTSB ENG24WA016](https://openairdocs.org/ntsb/ENG24WA016.md): Boeing 747 · Sulawesi, Indonesia · Incident · No injuries · Class 3 · Foreign · May 15, 2024 · ER-BOS · Minor damage
- [NTSB CEN24LA185](https://openairdocs.org/ntsb/CEN24LA185.md): Titan T51 · Novi, MI · Accident · Serious injuries · Class 3 · Limited · Final report · May 12, 2024 · N260Y · Substantial damage
  > A failure of the electrical system, resulting in a loss of fuel injection and subsequent loss of engine power.
- [NTSB ENG24WA015](https://openairdocs.org/ntsb/ENG24WA015.md): Boeing 737 · Cozumel, Mexico · Incident · Class 5 · Foreign · May 3, 2024 · XA-AML · No damage
- [NTSB ENG24WA013](https://openairdocs.org/ntsb/ENG24WA013.md): Boeing 737-79P · San Miguel de Cozumel, Mexico · Incident · Class 3 · Foreign · Apr 27, 2024 · N7826B · No damage
- [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 WPR24LA121](https://openairdocs.org/ntsb/WPR24LA121.md): Kitfox Series 5 · Yucca Grove, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 5, 2024 · N743JT · Substantial damage
  > The pilot’s improper repair of the oil sump, which resulted in a loss of oil pressure and collision with terrain during a precautionary landing.
- [NTSB CEN24LA140](https://openairdocs.org/ntsb/CEN24LA140.md): Cessna T210 · San Saba, TX · Accident · No injuries · Class 3 · Limited · Final report · Mar 25, 2024 · N498TB · Substantial damage
  > A total loss of engine power due to multiple connecting rod failures from oil starvation.
- [NTSB GAA24WA105](https://openairdocs.org/ntsb/GAA24WA105.md): Cessna 150 · Budaors, Hungary · Incident · Class 5 · Foreign · Mar 5, 2024 · HA-BAE · No damage
- [NTSB ANC24LA017](https://openairdocs.org/ntsb/ANC24LA017.md): MD Helicopter 369E/500E · Kekaha, HI · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 27, 2024 · N633JH · Substantial damage
  > Maintenance personnel’s noncompliance with maintenance manual procedures that required the removal of the overrunning clutch output bearing during the regreasing procedure, which resulted in inadequate regreasing of the bearing and the subsequent failure of…
- [NTSB CEN24LA120](https://openairdocs.org/ntsb/CEN24LA120.md): Pulsar I · Patterson, LA · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 25, 2024 · N72BH · Destroyed
  > The non-certificated pilot’s decision to operate an unairworthy engine, which led to cylinder failure and a loss of engine power.
- [NTSB WPR24LA087](https://openairdocs.org/ntsb/WPR24LA087.md): Mooney M20K · Burley, ID · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 10, 2024 · C-FLQQ · Substantial damage
  > The failure of the pilot to fly a stabilized approach during an emergency landing with a tailwind, which resulted in a bounced landing and subsequent runway excursion during the landing roll. Contributing to the accident was the pilot’s inadequate preflight…
- [NTSB ERA24FA110](https://openairdocs.org/ntsb/ERA24FA110.md): Bombardier CL-600-2B16 · Naples, FL · Accident · 2 fatal · Class 3 · Field · Final report · Feb 9, 2024 · N823KD · Destroyed
  > Corrosion of both engines’ variable geometry (VG) system components, which led to their operation in an off-schedule position and resulted in near-simultaneous sub-idle rotating compressor stalls on approach, subsequent loss of thrust in both engines, and an…
- [NTSB WPR24LA074](https://openairdocs.org/ntsb/WPR24LA074.md): Beck Michael J Sonex · Auburn, WA · Accident · No injuries · Class 3 · Limited · Final report · Jan 16, 2024 · N920MB · Substantial damage
  > Water contamination within the fuel regulator air-reference system, which resulted in improper fuel metering and a loss of engine power during initial climb.
- [NTSB WPR24LA076](https://openairdocs.org/ntsb/WPR24LA076.md): Piper PA-28-181 · Colorado City, AZ · Accident · No injuries · Class 3 · Limited · Final report · Jan 13, 2024 · N2886X · Substantial damage
  > The loss of engine power due to the failure of the No. 2 piston pin plug, which resulted in oil starvation and subsequent failure of the No. 3 connecting rod. Contributing to the accident was the inadequate engine inspections by maintenance personnel.
- [NTSB CEN24LA088](https://openairdocs.org/ntsb/CEN24LA088.md): Eurocopter AS 350 B2 · Spofford, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Jan 12, 2024 · N204TX · Substantial damage
  > The fatigue failure of the fuel control unit control lever arm, which resulted in fuel starvation, and a loss of engine power.
- [NTSB ERA24FA078](https://openairdocs.org/ntsb/ERA24FA078.md): Piper PA46R-350T · Mooresville, NC · Accident · 1 fatal · Class 3 · Field · Final report · Dec 31, 2023 · N539MA · Substantial damage
  > A missing induction clamp, which allowed the induction hose to the left side intercooler to become disconnected, resulting in a total loss of engine power due to an overly rich fuel/air mixture.
- [NTSB WPR24LA064](https://openairdocs.org/ntsb/WPR24LA064.md): Diamond Aircraft Ind DA 40 · Spanish Fork, UT · Accident · No injuries · Class 3 · Limited · Final report · Dec 21, 2023 · N453DS · Substantial damage
  > Maintenance personnel’s improper installation of the left magneto, which resulted in oil starvation to the engine and a subsequent total loss of engine power.
- [NTSB ENG24WA007](https://openairdocs.org/ntsb/ENG24WA007.md): Grumman G21 · Bella Bella, Canada · Incident · Minor injuries · Class 5 · Foreign · Dec 18, 2023 · C-GDDJ · Substantial damage
- [NTSB ERA24LA066](https://openairdocs.org/ntsb/ERA24LA066.md): Diamond Aircraft Ind DA 40 NG · Asheville, NC · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 15, 2023 · N907L · Substantial damage
  > Fatigue failure of the No. 4 inner main bearing cap screw and connecting rod bolts, which resulted in a total loss of engine power. Contributing to the failure were the low material strength of the inner main bearing cap screw and the increased loads on the…
- [NTSB CEN24LA063](https://openairdocs.org/ntsb/CEN24LA063.md): Cessna T210 · Sapulpa, OK · Accident · No injuries · Class 3 · Limited · Final report · Dec 13, 2023 · N6789R · Substantial damage
  > The total loss of engine power due to the failure of the left magneto and subsequent damage to a lead for the right magneto.
- [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 WPR24FA053](https://openairdocs.org/ntsb/WPR24FA053.md): Beauchamp Norm Kitfox · Eloy, AZ · Accident · 1 fatal · Class 3 · Field · Final report · Dec 8, 2023 · N66180 · Destroyed
  > The separation of a propeller blade during the initial climb due to insufficient blade retention forces. Contributing to the accident was the propeller blade retention design, manufacturing defects that prevented the propeller from achieving adequate grip…
- [NTSB CEN24LA061](https://openairdocs.org/ntsb/CEN24LA061.md): Cessna 421C · McGregor, TX · Accident · No injuries · Class 3 · Limited · Final report · Dec 8, 2023 · N146TJ · Substantial damage
  > The failure of the spring pin in the right propeller governor, which precluded the pilot from controlling the propeller pitch to maintain engine rpm, resulting in a loss of engine thrust, excessive drag, and the subsequent forced landing to a field.
- [NTSB ERA24FA050](https://openairdocs.org/ntsb/ERA24FA050.md): Piper PA32R · Attalla, AL · Accident · 1 fatal · Class 3 · Field · Final report · Nov 27, 2023 · N4187Q · Destroyed
  > The undetected wear of both pawl retaining rivets of the left magneto impulse coupling and fatigue failure of one pawl retaining rivet, which led to cascading fractures of the second pawl retaining rivet, left gear retainer assembly, and gear teeth of…
- [NTSB ERA24LA040](https://openairdocs.org/ntsb/ERA24LA040.md): Bell Andy Skyraider II · Limington, ME · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 16, 2023 · N90AB · Substantial damage
  > The failure of the fuel pump to adequately supply fuel to the engine due to significant corrosion.
- [NTSB CEN24LA038](https://openairdocs.org/ntsb/CEN24LA038.md): Bede BD-4 · Lowell, IN · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 14, 2023 · N931AS · Substantial damage
  > Fatigue cracking of the propeller blade root, which resulted in the in-flight separation of the propeller blade from its root. Contributing to the accident was the improper machining of the blade root threads, which resulted in chatter/ratchet marks that…
- [NTSB WPR24LA034](https://openairdocs.org/ntsb/WPR24LA034.md): Cessna 310 · Hayden, ID · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 13, 2023 · N86H · Substantial damage
  > The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in a loss of control and subsequent stall during a precautionary landing. Contributing to the accident was the improper maintenance…

Next page: https://openairdocs.org/ntsb-events/340/sequence.md?page=4

## 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 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?page=3

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