# 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 6 of 29 · 1,419 cases

## Cases, newest first

- [NTSB ERA23FA265](https://openairdocs.org/ntsb/ERA23FA265.md): Beech B35 · Orangeburg, SC · Accident · 1 fatal · Class 3 · Field · Final report · Jun 10, 2023 · N8725A · Destroyed
  > A stuck No. 3 cylinder intake valve, which resulted in a partial loss of engine power and subsequent forced landing.
- [NTSB ENG23WA029](https://openairdocs.org/ntsb/ENG23WA029.md): Sikorsky S92 · Sola, Norway · Incident · No injuries · Class 5 · Foreign · Jun 5, 2023 · LN-OMI · No damage
- [NTSB GAA23WA159](https://openairdocs.org/ntsb/GAA23WA159.md): Piper PA-32-260 · Nicholls Town, Bahamas · Accident · No injuries · Class 5 · Foreign · Jun 1, 2023 · N3790W · Substantial damage
- [NTSB CEN23LA206](https://openairdocs.org/ntsb/CEN23LA206.md): Cessna 172B · Divide, CO · Accident · Minor injuries · Class 3 · Limited · Final report · May 29, 2023 · N8098X · Substantial damage
  > A loss of engine power during cruise flight for reasons that could not be determined.
- [NTSB ERA23LA264](https://openairdocs.org/ntsb/ERA23LA264.md): Piper PA28 · Lancaster, TN · Accident · Minor injuries · Class 3 · Limited · Final report · May 21, 2023 · N9139J · Substantial damage
  > The fatigue failure of an exhaust valve, resulting in a partial loss of engine power.
- [NTSB WPR23LA196](https://openairdocs.org/ntsb/WPR23LA196.md): Cessna 172H · Seattle, WA · Accident · Minor injuries · Class 3 · Limited · Final report · May 19, 2023 · N2550L · Substantial damage
  > A stuck exhaust valve that resulted in a partial loss of engine power and a forced water ditching.
- [NTSB DCA23WA294](https://openairdocs.org/ntsb/DCA23WA294.md): Embraer ERJ 190-100 IGW · Queretaro, Mexico · Occurrence · No injuries · Class 5 · Foreign · May 13, 2023 · N334JB · Minor damage
- [NTSB ERA23LA225](https://openairdocs.org/ntsb/ERA23LA225.md): Mooney M20K · Hillsborough Township, NJ · Accident · Minor injuries · Class 3 · Limited · Final report · May 6, 2023 · N262MK · Substantial damage
  > The partial loss of engine power due to maintenance personnel’s failure to ensure that the ignition harnesses were properly secured and the pilot’s inappropriate pitch control inputs, which resulted in the airplane exceeding its critical angle of attack and…
- [NTSB WPR23LA175](https://openairdocs.org/ntsb/WPR23LA175.md): Cessna P337H · Laurel, MT · Accident · Minor injuries · Class 3 · Limited · Final report · May 3, 2023 · N62PC · Substantial damage
  > A partial loss of engine power to the rear engine resulting from cylinder detonation for undetermined reasons, which resulted in a forced landing and impact with terrain.
- [NTSB GAA23WA138](https://openairdocs.org/ntsb/GAA23WA138.md): Embraer EMB810 · Altamira, Brazil · Accident · No injuries · Class 5 · Foreign · Apr 23, 2023 · PT-VNT · Substantial damage
- [NTSB ENG23WA027](https://openairdocs.org/ntsb/ENG23WA027.md): Boeing 727 · Bogotá, Colombia · Incident · No injuries · Class 5 · Foreign · Apr 22, 2023 · HK 5239 · No damage
- [NTSB ENG23WA026](https://openairdocs.org/ntsb/ENG23WA026.md): Airbus A320 · Puerto Vallarta, Mexico · Incident · Class 5 · Foreign · Apr 19, 2023 · XA-VAV · No damage
- [NTSB GAA23WA137](https://openairdocs.org/ntsb/GAA23WA137.md): Cessna 172 · Usa City, Japan · Accident · No injuries · Class 5 · Foreign · Apr 18, 2023 · JA-395A · Substantial damage
- [NTSB ENG23WA046](https://openairdocs.org/ntsb/ENG23WA046.md): Boeing 747 · Nairobi, Kenya · Incident · Class 5 · Foreign · Apr 17, 2023 · 9V-SFO · No damage
- [NTSB ERA23FA188](https://openairdocs.org/ntsb/ERA23FA188.md): Miller Glenn F RV-12 · Climax, NC · Accident · 1 fatal · Class 3 · Field · Final report · Apr 11, 2023 · N543GM · Destroyed
  > The airplane owner/builder’s inappropriate use of a lower grade fuel than that required by the airplane and engine operations manual, which resulted in engine detonation and the degradation and eventual obliteration of the Nos. 1 and 2 cylinder spark plug…
- [NTSB CEN23LA152](https://openairdocs.org/ntsb/CEN23LA152.md): Vans RV6 · Goldsby, OK · Accident · Minor injuries · Class 3 · Limited · Final report · Apr 8, 2023 · N48PS · Substantial damage
  > The engine electronic ignition system became disconnected, which resulted in a partial loss of engine power.
- [NTSB GAA23WA113](https://openairdocs.org/ntsb/GAA23WA113.md): Piper PA34 · Boa Vista, Brazil · Accident · No injuries · Class 5 · Foreign · Mar 25, 2023 · PR-FDL · Substantial damage
- [NTSB GAA23WA111](https://openairdocs.org/ntsb/GAA23WA111.md): Piper PA-34-200T · Conceição do Araguáia, Brazil · Accident · Minor injuries · Class 4 · Foreign · Mar 24, 2023 · PT-WHJ · Substantial damage
- [NTSB WPR23LA117](https://openairdocs.org/ntsb/WPR23LA117.md): Stinson 108 · Lampasas, TX · Accident · No injuries · Class 3 · Limited · Final report · Mar 4, 2023 · N6532M · Substantial damage
  > Improper case hardening of the crankshaft timing gear, which resulted in the fatigue failure of the gear and a total loss of engine power.
- [NTSB GAA23WA124](https://openairdocs.org/ntsb/GAA23WA124.md): Piper PA28 · Malacca City, Malaysia · Incident · No injuries · Class 5 · Foreign · Feb 14, 2023 · 9M-SKJ · No damage
- [NTSB DCA23WA141](https://openairdocs.org/ntsb/DCA23WA141.md): Airbus A321 · Doha, Qatar · Incident · Class 5 · Foreign · Jan 29, 2023 · A6-AEF · Minor damage
- [NTSB ERA23LA120](https://openairdocs.org/ntsb/ERA23LA120.md): Mooney M20C · Calhoun, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 28, 2023 · N5587Q · Destroyed
  > A partial loss of engine power during the initial climb due to an improperly installed spark plug.
- [NTSB WPR23LA097](https://openairdocs.org/ntsb/WPR23LA097.md): Kaman Aerospace K-1200 · Sweet Home, OR · Accident · No injuries · Class 3 · Limited · Final report · Jan 24, 2023 · N202WM · Substantial damage
  > Improper installation of the hardware retaining the adjustment screw in the N2 topping governor lever and roller assembly, which resulted in a partial loss of engine power.
- [NTSB ERA23FA103](https://openairdocs.org/ntsb/ERA23FA103.md): Piper PA28 · Suffolk, VA · Accident · 2 fatal · Class 3 · Field · Final report · Jan 7, 2023 · N592FL · Destroyed
  > The pilot’s decision to fly the airplane without confirming it had been released from maintenance, which resulted in a partial loss of engine power due to loose magnetos. Contributing to the outcome was the pilot’s failure to maintain adequate airspeed and…
- [NTSB GAA23WA097](https://openairdocs.org/ntsb/GAA23WA097.md): Cessna 310F · Puerto Vallarta, Mexico · Accident · 1 fatal · Class 5 · Foreign · Dec 27, 2022 · N541DW
- [NTSB WPR23FA073](https://openairdocs.org/ntsb/WPR23FA073.md): Cessna 150A · Santa Monica, CA · Accident · 1 fatal · Class 3 · Field · Final report · Dec 22, 2022 · N7032X · Substantial damage
  > A failure of the No. 1 piston connecting rod bearing journal due to oil starvation for reasons that could not be determined, which resulted in a complete loss of engine power.
- [NTSB GAA23WA031](https://openairdocs.org/ntsb/GAA23WA031.md): Robinson R66 · Kesova Gora, Russia · Accident · 2 fatal · Class 5 · Foreign · Nov 27, 2022 · RA- 07390 · Destroyed
- [NTSB ERA23LA058](https://openairdocs.org/ntsb/ERA23LA058.md): Antonov AN2 · Opa-Locka, FL · Accident · No injuries · Class 3 · Limited · Final report · Nov 14, 2022 · CU-A1885 · Substantial damage
  > The pilot's failure to properly configure the cowl flaps and oil cooler shutters, which resulted in a total loss of engine power due to overheating of the engine. Contributing to the accident was the pilot's decision to operate the airplane in with an…
- [NTSB WPR23LA031](https://openairdocs.org/ntsb/WPR23LA031.md): Cessna 150G · Star Valley, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 11, 2022 · N3131J · Substantial damage
  > The failure of the No. 1 cylinder exhaust or intake valve which resulted in the partial loss of engine power and subsequent impact with terrain.
- [NTSB ERA23FA033](https://openairdocs.org/ntsb/ERA23FA033.md): Beech A24 · Keene, NH · Accident · 2 fatal · Class 3 · Field · Final report · Oct 21, 2022 · N8020R · Destroyed
  > Improper maintenance of the fuel injector nozzles and the pilots’ failure to abort the takeoff during the takeoff roll. Contributing to the accident was the mechanic’s decision to return the airplane to service with the engine unable to attain its full rated…
- [NTSB WPR23LA016](https://openairdocs.org/ntsb/WPR23LA016.md): Quickie Q2 · Laramie, WY · Accident · No injuries · Class 3 · Limited · Final report · Oct 14, 2022 · C-GDHK · Substantial damage
  > The partial loss of engine power due to the seizure of the No. 1 cylinder exhaust valve in the valve guide.
- [NTSB CEN23LA009](https://openairdocs.org/ntsb/CEN23LA009.md): Yates Mike E Roaring Eagle · Stanwood, IA · Accident · Minor injuries · Class 4 · Limited · Final report · Oct 9, 2022 · N181MY · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack in the traffic pattern, which resulted in an aerodynamic stall and loss of airplane control at too low of an altitude to recover. Contributing to the accident was the partial loss of engine…
- [NTSB CEN22FA436](https://openairdocs.org/ntsb/CEN22FA436.md): Piper PA-28-140 · Allentown, PA · Accident · 1 fatal · Class 3 · Field · Final report · Sep 28, 2022 · N7329F · Destroyed
  > A partial loss of engine power for undetermined reasons.
- [NTSB CEN22LA429](https://openairdocs.org/ntsb/CEN22LA429.md): Commander 114TC · Savoy, TX · Accident · No injuries · Class 3 · Limited · Final report · Sep 22, 2022 · N495TC · Substantial damage
  > A loss of engine power for reasons that could not be determined.
- [NTSB GAA22WA288](https://openairdocs.org/ntsb/GAA22WA288.md): Cessna 172 · Donji Proložac, Croatia · Incident · No injuries · Class 5 · Foreign · Sep 19, 2022 · 9A-BDM
- [NTSB WPR22LA351](https://openairdocs.org/ntsb/WPR22LA351.md): Cessna 172L · Ventura, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 16, 2022 · N7917G · Substantial damage
  > A partial loss of engine power due to the fatigue fracture of the No. 4 exhaust valve.
- [NTSB CEN22LA421](https://openairdocs.org/ntsb/CEN22LA421.md): Piper PA-28R-180 · Broomfield, CO · Accident · No injuries · Class 3 · Limited · Final report · Sep 14, 2022 · N3713T · Substantial damage
  > A partial loss of engine power due to a collapsed induction hose that blocked engine intake airflow.
- [NTSB ERA22LA412](https://openairdocs.org/ntsb/ERA22LA412.md): Engineering & Research 415-C · Galion, OH · Accident · No injuries · Class 3 · Limited · Final report · Sep 9, 2022 · N99209 · Substantial damage
  > A partial loss of engine power due to an exhaust valve that was stuck in the open position.
- [NTSB CEN22LA413](https://openairdocs.org/ntsb/CEN22LA413.md): Piper PA32RT · Bulverde, TX · Accident · No injuries · Class 3 · Limited · Final report · Sep 9, 2022 · N31981 · Substantial damage
  > The partial loss of engine power due to excessive carbon deposits that resulted in one or more stuck exhaust valves.
- [NTSB WPR22LA334](https://openairdocs.org/ntsb/WPR22LA334.md): Buxbaum Mark Edward Long EZ · Medicine Bow, WY · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 5, 2022 · N444MR · Substantial damage
  > A partial loss of engine power due to the fatigue fracture of the No. 4 exhaust valve head.
- [NTSB ERA22LA411](https://openairdocs.org/ntsb/ERA22LA411.md): Cessna 172 · Clearfield, PA · Accident · No injuries · Class 3 · Limited · Final report · Sep 3, 2022 · N9619H · Substantial damage
  > A sudden partial loss of engine power for undetermined reasons, which resulted in an off-airport landing.
- [NTSB WPR22LA322](https://openairdocs.org/ntsb/WPR22LA322.md): Ray E Roberts Kitfox V Vixen · Caldwell, ID · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 26, 2022 · N52367 · Substantial damage
  > The partial loss of engine power due to a loose wire leading to the engine’s electronic control unit (ECU). Contributing was the pilot’s exceedance of the critical angle of attack while maneuvering, which resulted in an aerodynamic stall at an altitude too…
- [NTSB ENG22WA044](https://openairdocs.org/ntsb/ENG22WA044.md): Airbus A320 · Guadalajara, Mexico · Incident · Class 3 · Foreign · Aug 24, 2022 · XA-VAJ · No damage
- [NTSB ERA22LA369](https://openairdocs.org/ntsb/ERA22LA369.md): Cessna 172 · Jamestown, NY · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 12, 2022 · N4751F · Substantial damage
  > A partial loss of engine power for reasons that could not be definitively determined.
- [NTSB WPR22LA301](https://openairdocs.org/ntsb/WPR22LA301.md): Piper PA-28-140 · Laurel, MT · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 11, 2022 · N5780F · Substantial damage
  > The loss of climb performance due to undetermined reasons.
- [NTSB GAA22WA258](https://openairdocs.org/ntsb/GAA22WA258.md): Air Tractor AT-802A · Cranbrook, Canada · Accident · Minor injuries · Class 5 · Foreign · Aug 3, 2022 · C-FFQS · Substantial damage
- [NTSB GAA22WA266](https://openairdocs.org/ntsb/GAA22WA266.md): Cessna 172 · Qualicum Beach, Canada · Accident · Serious injuries · Class 5 · Foreign · Jul 25, 2022 · C-GGSN · Substantial damage
- [NTSB WPR22LA246](https://openairdocs.org/ntsb/WPR22LA246.md): Cessna 172B · Silver Springs, NV · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 7, 2022 · N7609X · Substantial damage
  > A loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB GAA22WA309](https://openairdocs.org/ntsb/GAA22WA309.md): Cassult Racer Iiim · Henstridge, Somerset, United Kingdom · Accident · No injuries · Class 5 · Foreign · Jul 1, 2022 · G-BPVO · Substantial damage
- [NTSB GAA22WA209](https://openairdocs.org/ntsb/GAA22WA209.md): Cessna TU206G · Bielsko Biala, Poland · Accident · No injuries · Class 5 · Foreign · Jun 24, 2022 · OK-ROY · Substantial damage

Next page: https://openairdocs.org/ntsb-events/342/cases.md?page=7

## 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" = '342')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/cases?page=6

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.