# NTSB investigations: Loss of engine power (partial)

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 5 of 38 · 1,858 cases

## Cases, newest first

- [NTSB GAA24WA195](https://openairdocs.org/ntsb/GAA24WA195.md): Textron 208 · Bailey Town, Bahamas · Incident · Class 5 · Foreign · Jun 23, 2024 · N384TA
- [NTSB CEN24LA236](https://openairdocs.org/ntsb/CEN24LA236.md): Cirrus Design SR22T · Boerne, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 23, 2024 · N87AQ · Substantial damage
  > Maintenance personnel’s inadequate adjustment of fuel flow, which resulted in an excessively rich mixture, a rough-running engine, and a subsequent partial loss of engine power.
- [NTSB ERA24LA271](https://openairdocs.org/ntsb/ERA24LA271.md): Cessna 172 · Hernando, FL · Accident · No injuries · Class 3 · Limited · Final report · Jun 21, 2024 · N734XT · Substantial damage
  > The improper installation of a cylinder rocker stud by maintenance personnel, which resulted in a partial loss of engine power and subsequent forced landing.
- [NTSB CEN24LA239](https://openairdocs.org/ntsb/CEN24LA239.md): Thrush S2R · Hebron, ND · Accident · No injuries · Class 3 · Limited · Final report · Jun 17, 2024 · N529KC · Substantial damage
  > Foreign object debris in the Negative Torque Sensing (NTS) system check valve, which impeded the flow of oil to the NTS system and the propeller governor (PG) reset piston, resulting in a total loss of engine power and an off-airport forced landing.…
- [NTSB CEN24FA228](https://openairdocs.org/ntsb/CEN24FA228.md): Cessna 421 · Steamboat Springs, CO · Accident · 2 fatal · Class 3 · Field · Final report · Jun 17, 2024 · N245T · Destroyed
  > The pilot’s failure to maintain sufficient airspeed following a loss of engine power, which resulted in an inadvertent aerodynamic stall/spin at low altitude.
- [NTSB WPR24LA198](https://openairdocs.org/ntsb/WPR24LA198.md): Warren B Cox COX Breezy · Albuquerque, NM · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 13, 2024 · N409WC · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for landing following a partial loss of engine power after takeoff, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was maintenance…
- [NTSB ANC24LA045](https://openairdocs.org/ntsb/ANC24LA045.md): Cessna 206 · King Salmon, AK · Accident · No injuries · Class 3 · Limited · Final report · Jun 7, 2024 · N756CL · Substantial damage
  > A partial loss of engine power due to detonation/preignition of the No. 1 cylinder for reasons that could not be determined.
- [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 WPR24LA178](https://openairdocs.org/ntsb/WPR24LA178.md): Piper PA-28-180 · Nephi, UT · Accident · Minor injuries · Class 4 · Limited · Final report · May 31, 2024 · N7838W · Substantial damage
  > The pilot’s incorrect movement of the fuel selector valve to an off or restricted position, which resulted in fuel starvation and a loss of engine power.
- [NTSB CEN24LA200](https://openairdocs.org/ntsb/CEN24LA200.md): Piper PA28 · Taylor, TX · Accident · Minor injuries · Class 3 · Limited · Final report · May 27, 2024 · N56466 · Substantial damage
  > A partial loss of engine power due to an incorrect carburetor air inlet hose, which led to a reduction in air flow to the engine.
- [NTSB WPR24LA159](https://openairdocs.org/ntsb/WPR24LA159.md): Nanchang China CJ-6A · Peoria, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 21, 2024 · N4182C · Substantial damage
  > The partial loss of engine power during cruise flight due to the improper installation of the master connecting rod main bushing set screws, which backed off and allowed the main bushing to shift, resulting in scoring damage on the crankshaft that led to the…
- [NTSB GAA24WA216](https://openairdocs.org/ntsb/GAA24WA216.md): Bell 505 · Minsk, Poland · Accident · Class 5 · Foreign · May 16, 2024 · SP-RMK · Substantial damage
- [NTSB WPR24LA148](https://openairdocs.org/ntsb/WPR24LA148.md): Kjelsrud Gary Kitfox · Powell, WY · Accident · No injuries · Class 3 · Limited · Final report · May 10, 2024 · N605GK · Substantial damage
  > The pilot’s adjustment of the carburetor to an incorrect setting, which resulted in partial loss of engine power during takeoff.
- [NTSB ERA24LA211](https://openairdocs.org/ntsb/ERA24LA211.md): Piper PA32 · Apopka, FL · Accident · No injuries · Class 3 · Limited · Final report · May 8, 2024 · N908DK · Substantial damage
  > A partial loss of engine power due to sticking exhaust valves. Contributing to the accident was maintenance personnel’s failure to use available engine data while troubleshooting a known engine issue and maintenance personnel’s failure to comply with…
- [NTSB GAA24WA170](https://openairdocs.org/ntsb/GAA24WA170.md): Cessna 172 · Novosibirsk, Russia · Accident · No injuries · Class 5 · Foreign · Apr 30, 2024 · RA-2038G · Substantial damage
- [NTSB ERA24LA198](https://openairdocs.org/ntsb/ERA24LA198.md): Cessna 172 · Palatka, FL · Accident · No injuries · Class 3 · Limited · Final report · Apr 29, 2024 · N99442 · Substantial damage
  > The failure of the nose oil seal to remain secure in the engine crankcase, which resulted in a loss of engine oil and partial loss of engine power.
- [NTSB ERA24LA190](https://openairdocs.org/ntsb/ERA24LA190.md): Beech B24R · Lumberton Township, NJ · Accident · Minor injuries · Class 3 · Limited · Final report · Apr 22, 2024 · N53EM · Substantial damage
  > The pilot/owner’s failure to ensure adequate maintenance of the airplane, which resulted in a partial loss of engine power during takeoff.
- [NTSB GAA24WA149](https://openairdocs.org/ntsb/GAA24WA149.md): Bell 206 · State of Mato Grosso do Sul, MS, Brazil · Accident · Minor injuries · Class 5 · Foreign · Apr 18, 2024 · PT-HBM · Substantial damage
- [NTSB GAA24WA173](https://openairdocs.org/ntsb/GAA24WA173.md): Piper PA-25 · Trissa Charkaoua, Morocco · Accident · Class 5 · Foreign · Apr 15, 2024 · CN-TFX · Substantial damage
- [NTSB GAA24WA153](https://openairdocs.org/ntsb/GAA24WA153.md): Cessna 172 · Valparaso, Chile · Accident · No injuries · Class 5 · Foreign · Apr 13, 2024 · CC-KSK · Substantial damage
- [NTSB ERA24FA157](https://openairdocs.org/ntsb/ERA24FA157.md): Piper PA-44-180 · Fort Pierce North, FL · Accident · 1 fatal · Class 3 · Field · Final report · Mar 30, 2024 · N595ND · Substantial damage
  > The flight instructor’s failure to maintain control of the multiengine airplane after a partial loss of engine power on one engine during a go-around, which resulted in an aerodynamic stall. Contributing to the accident was the mechanic’s failure to check the…
- [NTSB GAA24WA130](https://openairdocs.org/ntsb/GAA24WA130.md): Cessna 172 · Grenchen, Switzerland · Incident · No injuries · Class 5 · Foreign · Mar 26, 2024 · HB-TDD
- [NTSB ERA24LA152](https://openairdocs.org/ntsb/ERA24LA152.md): Cessna 172 · Opelika, AL · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 24, 2024 · N863AU · Substantial damage
  > A partial loss of engine power due to a combination of fuel/oil contamination in the fuel injector assembly.
- [NTSB WPR24LA117](https://openairdocs.org/ntsb/WPR24LA117.md): Piper PA-28-140 · Acton, CA · Accident · No injuries · Class 3 · Limited · Final report · Mar 23, 2024 · N1695H · Substantial damage
  > The pilots inability to fully turn off the carburetor heat which resulted in a reduction of engine power and reduced climb performance. Contributing to the accident was the pilots delayed recovery from the simulated emergency landing.
- [NTSB GAA24WA114](https://openairdocs.org/ntsb/GAA24WA114.md): Piper 24 · Leicestershire, United Kingdom · Accident · Class 5 · Foreign · Mar 17, 2024 · G-ARYV · Substantial damage
- [NTSB CEN24LA137](https://openairdocs.org/ntsb/CEN24LA137.md): Enstrom Helicopter 280C · Port Lavaca, TX · Accident · No injuries · Class 3 · Limited · Final report · Mar 16, 2024 · N280WR · Substantial damage
  > The pilot’s improper manual engine mixture management which resulted in a loss of power. Contributing to the accident was the mechanic’s improper setting of the idle mixture adjustment and the pilot’s decision to take off with a known mechanical deficiency.
- [NTSB GAA24WA107](https://openairdocs.org/ntsb/GAA24WA107.md): Cessna 150 · Warsaw, Poland · Accident · Minor injuries · Class 5 · Foreign · Mar 1, 2024 · D-EKIQ
- [NTSB CEN24LA121](https://openairdocs.org/ntsb/CEN24LA121.md): Piper PA-28-181 · Watertown, SD · Accident · No injuries · Class 3 · Limited · Final report · Feb 25, 2024 · N38696 · Substantial damage
  > The stuck No. 2 cylinder exhaust valve, which resulted in a partial loss of engine power and a forced landing due to an undersized exhaust valve guide. Contributing to the accident were the improper manufacture of the engine cylinders, and the operation of…
- [NTSB GAA24WA090](https://openairdocs.org/ntsb/GAA24WA090.md): Britten Norman BN2A · Puerto Baquerizo Moreno, Ecuador · Accident · No injuries · Class 5 · Foreign · Feb 12, 2024 · HC-CXK · Substantial damage
- [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 ERA24LA105](https://openairdocs.org/ntsb/ERA24LA105.md): Cessna 150 · Parkland, FL · Accident · No injuries · Class 3 · Limited · Final report · Feb 5, 2024 · N3747J · Substantial damage
  > A catastrophic engine failure due to oil starvation to the main bearings for undetermined reasons.
- [NTSB GAA24WA088](https://openairdocs.org/ntsb/GAA24WA088.md): Piper PA-36 · Orihueca, Colombia · Accident · Minor injuries · Class 5 · Foreign · Feb 1, 2024 · HK2209 · Substantial damage
- [NTSB GAA24WA085](https://openairdocs.org/ntsb/GAA24WA085.md): Cessna 140 · Buenos Aires, Argentina · Accident · No injuries · Class 5 · Foreign · Jan 26, 2024 · LV-FCV · Substantial damage
- [NTSB GAA24WA075](https://openairdocs.org/ntsb/GAA24WA075.md): Cessna 172 · Speck-Fehraltorf, Switzerland · Accident · No injuries · Class 5 · Foreign · Jan 21, 2024 · HB-TDA
- [NTSB CEN24FA095](https://openairdocs.org/ntsb/CEN24FA095.md): Cirrus Design SR22 · Little Rock, AR · Accident · 1 fatal · Class 3 · Field · Final report · Jan 21, 2024 · N255JP · Destroyed
  > The pilot’s failure to maintain airplane control after a partial loss of engine power during initial climb. Contributing to the accident was the pilot’s failure to follow airplane flight manual procedures and limitations for the turbocharged engine, which…
- [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 GAA24WA067](https://openairdocs.org/ntsb/GAA24WA067.md): Cessna 208B · Lizard Island, Australia · Accident · Serious injuries · Class 5 · Foreign · Jan 7, 2024 · VH-NWJ · Substantial damage
- [NTSB CEN24LA065](https://openairdocs.org/ntsb/CEN24LA065.md): Beech B36TC · Burnet, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 17, 2023 · N70SL · Destroyed
  > The loss of engine power due an overly rich mixture from an improper adjustment of the fuel pump, which resulted in a forced landing and impact with a car and terrain.
- [NTSB GAA24WA056](https://openairdocs.org/ntsb/GAA24WA056.md): Cessna F150 · Budapest, Hungary · Accident · No injuries · Class 5 · Foreign · Dec 15, 2023 · HA-BHI · Substantial damage
- [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 CEN24LA056](https://openairdocs.org/ntsb/CEN24LA056.md): Vans RV6 · Fordyce, AR · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 5, 2023 · N600VS · Substantial damage
  > The pilot’s failure to attain a proper touchdown point following an unidentified electrical system failure and subsequent partial loss of engine power, which resulted in a runway overrun and impact with terrain. Contributing to the accident was the pilot’s…
- [NTSB GAA24WA050](https://openairdocs.org/ntsb/GAA24WA050.md): Piper PA30 · Villejuif, France · Accident · Serious injuries · Class 5 · Foreign · Dec 4, 2023 · F-BPIR · Destroyed
- [NTSB ANC24LA005](https://openairdocs.org/ntsb/ANC24LA005.md): Diamond Aircraft Ind DA 40 · Kapolei, HI · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 4, 2023 · N691YW · Substantial damage
  > A partial loss of engine power due to lose baffling from the muffler, which resulted in an obstruction of the exhaust system.
- [NTSB CEN24LA036](https://openairdocs.org/ntsb/CEN24LA036.md): Textron 172S · Erie, CO · Accident · No injuries · Class 3 · Limited · Final report · Nov 9, 2023 · N1817E · Substantial damage
  > A partial loss of engine power while maneuvering at a low altitude due to a stuck exhaust valve.
- [NTSB GAA24WA055](https://openairdocs.org/ntsb/GAA24WA055.md): Robinson R44 · Groenvlei, South Africa · Accident · Class 5 · Foreign · Oct 26, 2023 · ZT-RBU · Substantial damage
- [NTSB GAA24WA042](https://openairdocs.org/ntsb/GAA24WA042.md): Beech C23 · Bram Fischer International Airpor, South Africa · Accident · 1 fatal · Class 5 · Foreign · Oct 21, 2023 · ZS-JKE · Substantial damage
- [NTSB ERA24LA016](https://openairdocs.org/ntsb/ERA24LA016.md): Cessna 172L · Richmond, VA · Accident · No injuries · Class 3 · Limited · Final report · Oct 21, 2023 · N7716G · Substantial damage
  > The loss of engine power due to a restriction of fuel flow as a result of a fractured float bracket in the carburetor.
- [NTSB GAA24WA019](https://openairdocs.org/ntsb/GAA24WA019.md): Cessna 208 · Barwon Heads Geelong, Australia · Accident · Serious injuries · Class 5 · Foreign · Oct 19, 2023 · VH-UMV · Substantial damage
- [NTSB ENG24WA006](https://openairdocs.org/ntsb/ENG24WA006.md): Viking DHC-6-200 · Hulhulé Island, Maldives · Incident · No injuries · Class 5 · Foreign · Oct 6, 2023 · 8Q-RAL · No damage
- [NTSB ERA24FA001](https://openairdocs.org/ntsb/ERA24FA001.md): Cessna 177RG · Lake Placid, NY · Accident · 2 fatal · Class 3 · Field · Final report · Oct 1, 2023 · N545PZ · Substantial damage
  > A partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot’s inadequate preflight weight and balance planning and his aggressive low altitude maneuvering, which resulted in an aerodynamic stall and loss of control.

Next page: https://openairdocs.org/ntsb-events/342/sequence.md?page=6

## 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" = '342' 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/342/sequence?page=5

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