# NTSB investigations, PA: 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.

## Latest cases

- [NTSB ERA25LA122](https://openairdocs.org/ntsb/ERA25LA122.md): Allyn Kaste Rans S-19 (KIT) · Doylestown, PA · Accident · No injuries · Class 4 · Limited · Final report · Feb 10, 2025 · N258DK · Substantial damage
  > The pilot’s inadequate maintenance and preflight inspection.
- [NTSB ERA25LA041](https://openairdocs.org/ntsb/ERA25LA041.md): Anderson Kitfox 4 · New Castle, PA · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 2, 2024 · N620GA · Substantial damage
  > A partial loss of engine power due to a split fuel line that resulted in a fuel leak and reduced fuel supply to the aft carburetor.
- [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 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 ERA22LA254](https://openairdocs.org/ntsb/ERA22LA254.md): Cirrus Design SR22 · Tredyffin, PA · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 1, 2022 · N432CP · Substantial damage
  > The loosening of the throttle arm from the throttle body, which resulted in the pilot’s inability to control the engine, and a subsequent forced landing.
- [NTSB ERA21FA334](https://openairdocs.org/ntsb/ERA21FA334.md): North American SNJ-2 · Wilkes-Barre, PA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 20, 2021 · N52900 · Destroyed
  > A partial loss of engine power for undetermined reasons. Also causal was the pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for a forced landing following the loss of engine power, which resulted in an aerodynamic stall and…
- [NTSB ERA19LA245](https://openairdocs.org/ntsb/ERA19LA245.md): Schweizer 269C · Allentown, PA · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 11, 2019 · N1831A · Substantial damage
  > Inadequate maintenance of the helicopter’s magnetos, which resulted in a partial loss of engine power during the initial climb due to a failure of the left magneto and malfunction of the right magneto.
- [NTSB ERA18LA032](https://openairdocs.org/ntsb/ERA18LA032.md): Piper PA 34-220T · Ebensburg, PA · Accident · Serious injuries · Limited investigation · Final report · Nov 25, 2017 · N263DM · Substantial damage
  > The pilot's improper decision to fly an airplane with a known oil leak, which led to a total loss of engine power due to oil starvation. Contributing to the accident was the pilot's decision to land with a tailwind, which led to his attempted go-around and…
- [NTSB ERA18LA007](https://openairdocs.org/ntsb/ERA18LA007.md): Ercoupe 415 · Centre Hall, PA · Accident · No injuries · Limited investigation · Final report · Oct 6, 2017 · N3538H · Substantial damage
  > The partial loss of engine power due to the No. 2 cylinder exhaust valve being stuck.
- [NTSB ERA17FA248](https://openairdocs.org/ntsb/ERA17FA248.md): Aircraft Mfg & Dvlpmt CH601XLi Slsa · Towanda, PA · Accident · 1 fatal · Field investigation · Final report · Jul 19, 2017 · N601PH · Destroyed
  > A partial loss of engine power for reasons that could not be determined based on the available information, and the pilot's exceedance of the airplane's critical angle of attack during an attempted return to the airport, which resulted in an aerodynamic stall…
- [NTSB ERA17LA185](https://openairdocs.org/ntsb/ERA17LA185.md): Cessna 182 · West Chester, PA · Accident · No injuries · Limited investigation · Final report · May 21, 2017 · N378ES · Substantial damage
  > An engine crankcase overpressurization and the subsequent loss of engine oil for reasons that could not be determined, which resulted in the failure of the No. 6 cylinder connecting rod due to a lack of lubrication.
- [NTSB ERA16LA167](https://openairdocs.org/ntsb/ERA16LA167.md): Bell 47D1 · Myerstown, PA · Accident · No injuries · Limited investigation · Final report · Apr 20, 2016 · N202CH · Substantial damage
  > A total loss of engine power for reasons that could not be determined because examination of the engine revealed no mechanical anomalies that would have precluded normal operation.
- [NTSB ERA16LA166](https://openairdocs.org/ntsb/ERA16LA166.md): Champion 7ECA · Tannersville, PA · Accident · No injuries · Limited investigation · Final report · Apr 19, 2016 · N5094X · Substantial damage
  > A loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB ERA16LA116](https://openairdocs.org/ntsb/ERA16LA116.md): Cessna 150L · Gettysburg, PA · Accident · No injuries · Limited investigation · Final report · Feb 27, 2016 · N976HB · Substantial damage
  > A partial loss of engine power during initial climb for undetermined reasons because examination of the engine and a successful test-run did not reveal any anomalies that would preclude normal operation.
- [NTSB ERA15LA311](https://openairdocs.org/ntsb/ERA15LA311.md): Thomas A Siminski Zenith CH 750 · Allentown, PA · Accident · Serious injuries · Limited investigation · Final report · Aug 14, 2015 · N1750Z · Substantial damage
  > A partial loss of engine power due to the No. 1 spark plug being liberated from the cylinder head due to the stripped threads in the cylinder head. Contributing to the accident was the pilot’s decision to attempt to return to the airport while at a low…
- [NTSB ERA15LA276](https://openairdocs.org/ntsb/ERA15LA276.md): Grumman American Avn. AA1B · Lititz, PA · Accident · No injuries · Limited investigation · Final report · Jul 19, 2015 · N8969L · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine found no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB ERA15FA171](https://openairdocs.org/ntsb/ERA15FA171.md): Piper PA28 · West Chester, PA · Accident · 2 fatal · Field investigation · Final report · Mar 29, 2015 · N6842W · Destroyed
  > The failure of the flight instructor and the pilot to abort the takeoff after the airplane experienced a partial loss of engine power with adequate runway remaining, and their subsequent failure to maintain adequate airspeed, which led to the airplane…
- [NTSB ERA14LA351](https://openairdocs.org/ntsb/ERA14LA351.md): Siler Ronald E Ultrastar · Halifax, PA · Accident · Serious injuries · Limited investigation · Final report · Jul 23, 2014 · N4425W · Substantial damage
  > A total loss of engine power for reasons that could not be determined because the engine was not recovered. Contributing to the accident was the pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during…
- [NTSB ERA14LA308](https://openairdocs.org/ntsb/ERA14LA308.md): Taylor J-2 · Lock Haven, PA · Accident · No injuries · Limited investigation · Final report · Jun 20, 2014 · N16667 · Substantial damage
  > The airplane owner’s failure to clean and lubricate the engine valve guides and stems, which resulted in a partial loss of engine power during the initial climb due to an exhaust valve failure.
- [NTSB ERA13LA365](https://openairdocs.org/ntsb/ERA13LA365.md): Fetterman Lanny R Firestar II · Numidia, PA · Accident · No injuries · Limited investigation · Final report · Aug 16, 2013 · N598LF · Substantial damage
  > A fatigue failure of the right main landing gear wheel axle attachment bracket, which resulted in a nose-over during a precautionary landing.
- [NTSB ERA13LA263](https://openairdocs.org/ntsb/ERA13LA263.md): Wilson William M Cricket MC12 · Doylestown, PA · Accident · 1 fatal · Limited investigation · Final report · Jun 1, 2013 · N2SZ · Substantial damage
  > The pilot's failure to abort the takeoff after detecting the airplane’s degraded performance. Contributing to the accident were the likely loss of power from the left engine for reasons that could not be determined during the postaccident examination of the…
- [NTSB ERA13LA025](https://openairdocs.org/ntsb/ERA13LA025.md): Piper PA-28-140 · Allentown, PA · Accident · No injuries · Limited investigation · Final report · Oct 12, 2012 · N15037 · Substantial damage
  > The operator's failure to perform magneto inspections per the manufacturer's recommendations and failure to comply with the engine manufacturer's recommended time interval for engine overhaul, which resulted in defects in the magnetos going undetected and the…
- [NTSB ERA12LA539](https://openairdocs.org/ntsb/ERA12LA539.md): Cessna 172M · Canadensis, PA · Accident · No injuries · Limited investigation · Final report · Aug 31, 2012 · N391R · Substantial damage
  > The pilot’s failure to attain a proper glidepath.
- [NTSB ERA12LA507](https://openairdocs.org/ntsb/ERA12LA507.md): Aeronca 7AC · Clifford, PA · Accident · No injuries · Limited investigation · Final report · Aug 6, 2012 · N83826 · Substantial damage
  > Partial loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA12LA343](https://openairdocs.org/ntsb/ERA12LA343.md): Cessna 195A · Tipton, PA · Accident · No injuries · Limited investigation · Final report · May 18, 2012 · N9859A · Substantial damage
  > A fatigue failure of a copper oil line, which resulted in a partial loss of engine power due to oil starvation.
- [NTSB ERA11CA279](https://openairdocs.org/ntsb/ERA11CA279.md): Franke Harry C Avid Flyer B · Somerset, PA · Accident · No injuries · Data collection · Final report · Apr 30, 2011 · N145HF · Substantial damage
  > The pilot’s failure to hold full power for takeoff.
- [NTSB ERA11CA243](https://openairdocs.org/ntsb/ERA11CA243.md): Piper PA-28-180 · Latrobe, PA · Accident · No injuries · Data collection · Final report · Apr 14, 2011 · N5325L · Substantial damage
  > Maintenance personnel’s failure to properly secure the throttle cable to the fuel servo.
- [NTSB ERA10LA373](https://openairdocs.org/ntsb/ERA10LA373.md): Nadig Paul K Nadig · Franklin, PA · Accident · 2 fatal · Limited investigation · Final report · Jul 24, 2010 · N579PN · Substantial damage
  > A partial loss of engine power due to the owner’s inadequate fuel system maintenance, which resulted in a collision with trees and subsequent impact with the ground.
- [NTSB ERA10LA104](https://openairdocs.org/ntsb/ERA10LA104.md): Cessna 150G · Doylestown, PA · Accident · No injuries · Limited investigation · Final report · Jan 1, 2010 · N4026J · Substantial damage
  > A partial loss of engine power due to carburetor icing.
- [NTSB ERA09CA493](https://openairdocs.org/ntsb/ERA09CA493.md): Beech B19 · Thomasville, PA · Accident · No injuries · Data collection · Final report · Aug 30, 2009 · N6982R · Substantial damage
  > A partial loss of engine power due to a partial blockage of the carburetor fuel inlet filter.
- [NTSB MIA08CA087](https://openairdocs.org/ntsb/MIA08CA087.md): American Grumman AA 1B · State College, PA · Accident · No injuries · Data collection · Final report · Apr 6, 2008 · N15FA · Substantial damage
  > A partial loss of engine power for an undetermined reason.

## 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" = 'PA' AND c."eventCountry" = 'USA'
  AND 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?state=PA

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