# 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 13 of 38 · 1,858 cases

## Cases, newest first

- [NTSB WPR19LA233](https://openairdocs.org/ntsb/WPR19LA233.md): Cessna 120 · Livermore, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 21, 2019 · N4237N · Substantial damage
  > A partial loss of engine power due to fouled spark plugs in the No. 4 cylinder. Contributing to the accident was the pilot’s exceedance of the airplane’s critical angle of attack and a subsequent loss of control during the initial climb.
- [NTSB CEN19LA281](https://openairdocs.org/ntsb/CEN19LA281.md): Stinson 108 · Grand Rapids, MN · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 21, 2019 · N647C · Substantial damage
  > A loss of engine power after takeoff for undetermined reasons.
- [NTSB ERA19FA249](https://openairdocs.org/ntsb/ERA19FA249.md): Cessna T303 · Lagrangeville, NY · Accident · 2 fatal · Class 3 · Field · Final report · Aug 17, 2019 · N303TL · Destroyed
  > A partial loss of engine power in both engines during initial climb for reasons that could not be determined based on the available information.
- [NTSB CEN19LA275](https://openairdocs.org/ntsb/CEN19LA275.md): Cessna 150 · Rio Grande City, TX · Accident · No injuries · Class 3 · Limited · Final report · Aug 15, 2019 · N150CR · Substantial damage
  > The loss of engine power following an increase in oil temperature for undetermined reasons during cruise flight, which resulted in a forced landing on unsuitable terrain.
- [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 CEN19WA274](https://openairdocs.org/ntsb/CEN19WA274.md): Bell 206 · Vuoggatjålme, Sweden · Accident · No injuries · Foreign investigation · Aug 10, 2019 · SE-JOA · Substantial damage
  > On August 10, 2019, about 0855 hours universal coordinated time, a Bell 206-L1, Swedish registration SE-JOA, was damaged when the rotor blades struck the tail boom during an emergency landing following a loss of engine power after takeoff near Vuoggatjålme,…
- [NTSB CEN19LA262](https://openairdocs.org/ntsb/CEN19LA262.md): Pietenpol Aircamper · Newark, OH · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 10, 2019 · N899DA · Substantial damage
  > The engine’s failure to produce full power for reasons that could not be determined.
- [NTSB CEN19LA260](https://openairdocs.org/ntsb/CEN19LA260.md): Moth DH60GM · Cortez, CO · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 8, 2019 · N919DH · Substantial damage
  > A partial loss of engine power due to carburetor ice accumulation, which resulted in a loss of altitude and impact with trees.
- [NTSB CEN19LA250](https://openairdocs.org/ntsb/CEN19LA250.md): Robinson Helicopter R44 II · Lyons, NE · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 3, 2019 · N440EM · Substantial damage
  > The engine's low cylinder compression, which resulted in low rotor rpm and a subsequent dynamic rollover following landing on soft terrain.
- [NTSB CEN19LA265](https://openairdocs.org/ntsb/CEN19LA265.md): Piper PA28 · Fairhope, AL · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2019 · N6754J · Substantial damage
  > Failure of the No. 3 exhaust valve and the subsequent loss of engine power due to engine operation with an excessively lean fuel mixture over a period of time.
- [NTSB WPR19LA226](https://openairdocs.org/ntsb/WPR19LA226.md): Cessna 177RG · Fall City, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 27, 2019 · N1828Q · Substantial damage
  > The failure of the No. 3 cylinder intake valve that resulted in a partial loss of engine power and a forced landing on uneven terrain.
- [NTSB ERA19TA235](https://openairdocs.org/ntsb/ERA19TA235.md): Cessna 152 · Wakefield, VA · Accident · No injuries · Class 3 · Final report · Jul 25, 2019 · N47028 · Substantial damage
  > The pilot's inadequate preflight inspection, which failed to detect and remove all water from fuel, and maintenance personnel’s unapproved repair of the right wing fuel cap, which resulted in fuel contamination and a subsequent partial loss of engine power…
- [NTSB ERA19LA238](https://openairdocs.org/ntsb/ERA19LA238.md): Aero Commander S2R · Cuthbert, GA · Accident · No injuries · Class 3 · Limited · Final report · Jul 25, 2019 · N5680X · Substantial damage
  > The failure of the No. 1 bearing due to fatigue which resulted in a partial loss of engine power. The reason for the bearing failure could not be determined based on the available information.
- [NTSB GAA19WA458](https://openairdocs.org/ntsb/GAA19WA458.md): Sikorsky S92 · Sable Island, Canada · Incident · No injuries · Foreign investigation · Jul 24, 2019 · C-GICB · No damage
  > The government of Canada has notified the NTSB of an accident involving a SIKORSKY S92 helicopter that occurred on July 24, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of Canada's investigation under the provisions…
- [NTSB ANC19LA040](https://openairdocs.org/ntsb/ANC19LA040.md): Cessna 182 · Farewell, AK · Accident · No injuries · Class 3 · Limited · Final report · Jul 24, 2019 · N3934D · Substantial damage
  > A reported partial loss of engine power during takeoff for reasons that could not be determined.
- [NTSB WPR19LA198](https://openairdocs.org/ntsb/WPR19LA198.md): Cessna 172 · Madras, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 22, 2019 · N3761L · Substantial damage
  > A partial loss of power during final approach for undetermined reasons as postaccident examinations did not reveal any preimpact anomalies with the airplane or engine.
- [NTSB CEN19LA233](https://openairdocs.org/ntsb/CEN19LA233.md): Cessna 172 · Kingston, OK · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2019 · N8251L · Substantial damage
  > The partial loss of engine power due to a stuck exhaust valve.
- [NTSB ERA19LA232](https://openairdocs.org/ntsb/ERA19LA232.md): Vans RV7 · Ocean City, MD · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 19, 2019 · N849GS · Substantial damage
  > The disconnection of the propeller governor control arm from the propeller governor due to a missing attachment bolt, which resulted in a partial loss of engine power during takeoff when the governor control vibrated to a high pitch, low rpm setting.
- [NTSB CEN19LA226](https://openairdocs.org/ntsb/CEN19LA226.md): Cashen Super Acro Sport · Detroit Lakes, MN · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 16, 2019 · N61SC · Substantial damage
  > An open circuit in the engine's electrical switch box, which resulted in a partial loss of engine power and subsequent forced landing.
- [NTSB ANC19LA034](https://openairdocs.org/ntsb/ANC19LA034.md): Cessna 172RG · Ocean City, MD · Accident · No injuries · Class 3 · Limited · Final report · Jul 16, 2019 · N9715B · Substantial damage
  > A partial loss of power due to the liberation or failure of the No. 2 cylinder's exhaust valve.
- [NTSB WPR19LA195](https://openairdocs.org/ntsb/WPR19LA195.md): Cessna T210 · Hurricane, UT · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 15, 2019 · N6330N · Substantial damage
  > Maintenance personnel's improper installation of a throttle cable to the throttle body arm, which resulted in a throttle detachment during takeoff and subsequent loss of power. Contributing to the accident was the inadequate inspection of the throttle…
- [NTSB CEN19LA222](https://openairdocs.org/ntsb/CEN19LA222.md): Stinson 108 · Clinton, AR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 13, 2019 · N9651K · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB WPR19LA207](https://openairdocs.org/ntsb/WPR19LA207.md): Stinson 108 · Klamath Falls, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2019 · N6642M · Substantial damage
  > The mechanic’s failure to identify an engine performance issue, which led to a partial loss of engine power. Contributing to the accident was the pilot’s decision to operate the airplane with a known mechanical deficiency.
- [NTSB GAA19WA592](https://openairdocs.org/ntsb/GAA19WA592.md): Beech B36 · Mexico, Mexico · Accident · No injuries · Foreign investigation · Jul 5, 2019 · XB-HYS
  > The government of Mexico has notified the NTSB of an accident involving a BEECH B36 airplane that occurred on July 05, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of Mexico's investigation under the provisions of…
- [NTSB CEN19LA206](https://openairdocs.org/ntsb/CEN19LA206.md): Cessna 140 · Reeves, LA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 4, 2019 · N3725V · Substantial damage
  > The pilot's failure to secure the oil filler cap, which resulted in oil starvation and a precautionary off-airport landing, during which the airplane was substantially damaged.
- [NTSB WPR19FA178](https://openairdocs.org/ntsb/WPR19FA178.md): Maule M7-235B · Sunriver, OR · Accident · 1 fatal · Class 2 · Field · Final report · Jun 22, 2019 · N118G · Substantial damage
  > A partial loss of engine power due to the separation of baffling in both mufflers. Contributing to the accident was the pilot's failure to retract the landing gear on the float-equipped airplane before performing a forced landing to the river.
- [NTSB WPR19LA176](https://openairdocs.org/ntsb/WPR19LA176.md): Cessna 172 · Fullerton, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 21, 2019 · N64460 · Substantial damage
  > Partial loss of engine power during takeoff due to an age-degraded carburetor heat valve seal, which detached and partially blocked the carburetor air inlet. Contributing to the accident was an inadequate maintenance inspection.
- [NTSB CEN19LA179](https://openairdocs.org/ntsb/CEN19LA179.md): Piper PA28 · Cottrellville Township, MI · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 21, 2019 · N2360R · Substantial damage
  > The partial loss of engine power due to carburetor icing and the pilot’s failure to use carburetor heat in weather conditions conducive to serious carburetor icing. The reason for the pilot’s inability to advance the throttle for the go-around could not be…
- [NTSB ERA19FA196](https://openairdocs.org/ntsb/ERA19FA196.md): Trella T-21 · Endicott, NY · Accident · 1 fatal · Class 3 · Field · Final report · Jun 17, 2019 · N450C · Substantial damage
  > A partial loss of engine power for reasons that could not be determined, and the pilot's subsequent exceedance of the airplane's critical angle of attack during an attempted return to the runway, which resulted in an aerodynamic stall/spin at an altitude that…
- [NTSB CEN19LA172](https://openairdocs.org/ntsb/CEN19LA172.md): Karns SKY Ranger · Hedgesville, WV · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 14, 2019 · N106RK · Substantial damage
  > A partial loss of engine power during takeoff due to the formation of carburetor ice while on the ground, which resulted in an impact with terrain.
- [NTSB CEN19LA167](https://openairdocs.org/ntsb/CEN19LA167.md): Ercoupe 415 · Hawkins, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 13, 2019 · N87294 · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB ANC19LA027](https://openairdocs.org/ntsb/ANC19LA027.md): Helio H391 · Hope, AK · Accident · No injuries · Class 3 · Limited · Final report · Jun 12, 2019 · N10CJ · Substantial damage
  > The pilot’s failure to maintain directional control during a precautionary landing, which resulted in a ground loop. Contributing to the accident was a partial loss of engine power for reasons that could not be determined.
- [NTSB WPR19LA167](https://openairdocs.org/ntsb/WPR19LA167.md): Mooney M20V · Phoenix, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 11, 2019 · N576CM · Substantial damage
  > The partial loss of engine power during cruise flight for reasons that could not be determined with the available evidence.
- [NTSB GAA19WA414](https://openairdocs.org/ntsb/GAA19WA414.md): Cessna 207 · Birtingarholt, Iceland · Incident · No injuries · Foreign investigation · Jun 6, 2019 · TF-MAJ · No damage
- [NTSB ANC19FA021](https://openairdocs.org/ntsb/ANC19FA021.md): Bradshaw / McCauley Giles G-202 · Wasilla, AK · Accident · 1 fatal · Class 2 · Field · Final report · May 30, 2019 · N202AK · Substantial damage
  > The pilot's failure to maintain control after the partial loss of engine power. Contributing to the accident was a contamination of the fuel system, which likely seized the electric fuel pump and restricted fuel flow to the engine.
- [NTSB CEN19LA158](https://openairdocs.org/ntsb/CEN19LA158.md): Boeing B75N1 · Fredericksburg, TX · Accident · Serious injuries · Class 3 · Limited · Final report · May 29, 2019 · N60955 · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN19LA152](https://openairdocs.org/ntsb/CEN19LA152.md): Rand Robinson KR2 · Poplar Grove, IL · Accident · Minor injuries · Class 3 · Limited · Final report · May 26, 2019 · N886MJ · Substantial damage
  > The loss of engine power due to vapor lock of the throttle body injection system.
- [NTSB CEN19FA144](https://openairdocs.org/ntsb/CEN19FA144.md): Vans RV6 · Chillicothe, OH · Accident · 1 fatal · Class 2 · Field · Final report · May 18, 2019 · N596JB · Destroyed
  > The pilot's failure to maintain control of the airplane following an intermittent loss of engine power during cruise flight that resulted in him impacting trees. The reason for the loss of engine power could not be determined based on the available…
- [NTSB CEN19WA254](https://openairdocs.org/ntsb/CEN19WA254.md): Cirrus SR22 · Abergavenny, United Kingdom · Accident · Minor injuries · Foreign investigation · May 12, 2019 · 2-RORO · Destroyed
  > On May 12, 2019, about 0930 coordinated universal time (UTC), a Cirrus Aircraft SR22T airplane, Guernsey registration 2-RORO, serial number 701, was destroyed during a forced landing and postimpact fire following a loss of engine power shortly after takeoff…
- [NTSB WPR19LA140](https://openairdocs.org/ntsb/WPR19LA140.md): Cessna 172 · Red Rock, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 6, 2019 · N8887U · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available information.
- [NTSB ERA19FA164](https://openairdocs.org/ntsb/ERA19FA164.md): Piper PA28 · Foley, AL · Accident · 1 fatal · Field investigation · Final report · May 6, 2019 · N5542U · Destroyed
  > A partial loss of engine power due to a stuck exhaust valve and the flight instructor's exceedance of the airplane's critical angle of attack following the loss of power, which resulted in an aerodynamic stall at low altitude.
- [NTSB CEN19FA135](https://openairdocs.org/ntsb/CEN19FA135.md): Piper PA34 · Anderson, IN · Accident · Serious injuries · Class 2 · Field · Final report · May 5, 2019 · N999CR · Substantial damage
  > The loss of left engine power due to an incorrectly adjusted fuel servo and the airplane's nose up trim which resulted in the airplane steep climb, loss of airspeed, and aerodynamic stall and subsequent impact with terrain.
- [NTSB ANC19FA018](https://openairdocs.org/ntsb/ANC19FA018.md): Beech A60 · Santa Rosa, NM · Accident · 2 fatal · Field investigation · Final report · May 5, 2019 · N102SN · Substantial damage
  > The pilot's loss of airplane control due to his failure to maintain appropriate control inputs and airspeed after shutting down an engine because of a progressive failure of the pressure relief valve in the fuel pump, which resulted in variable fuel pressure…
- [NTSB WPR19LA136](https://openairdocs.org/ntsb/WPR19LA136.md): Piper PA28R · Winter Haven, FL · Accident · No injuries · Class 3 · Limited · Final report · May 4, 2019 · N2134T · Substantial damage
  > A partial loss of engine power due to worn fuel valve O-rings, which allowed air into the fuel system and resulted in a forced landing to unsuitable terrain.
- [NTSB WPR19LA128](https://openairdocs.org/ntsb/WPR19LA128.md): Beech 35 · Sedona, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 1, 2019 · N6864Q · Substantial damage
  > The partial loss of engine power due to deteriorated O-rings in the throttle metering assembly. Contributing to the accident was non-compliance with the manufacturer's recommended throttle metering assembly overhaul schedule.
- [NTSB ERA19LA162](https://openairdocs.org/ntsb/ERA19LA162.md): Piper PA28 · Melbourne, FL · Accident · No injuries · Class 3 · Limited · Final report · Apr 29, 2019 · N3031W · Substantial damage
  > A partial loss of engine power due to carburetor icing, and the flight instructor’s failure to effectively use carburetor heat while operating at an idle engine power setting in conditions conducive to carburetor icing.
- [NTSB ERA19LA159](https://openairdocs.org/ntsb/ERA19LA159.md): Zenair Zodiac CH601 · Angier, NC · Accident · Minor injuries · Class 3 · Limited · Final report · Apr 27, 2019 · N61PG · Substantial damage
  > A partial loss of engine power due to partial interruption of the fuel supply for undetermined reasons.
- [NTSB CEN19LA129](https://openairdocs.org/ntsb/CEN19LA129.md): Piper PA 23 · Sulphur Spring, TX · Accident · No injuries · Class 3 · Limited · Final report · Apr 27, 2019 · N233P · Substantial damage
  > The pilot’s inadequate preflight inspection, during which he failed to detect the water contamination in the left fuel, which resulted in a partial loss of power in the left engine. Contributing to the accident was the total loss of power in the right engine…
- [NTSB CEN19LA127](https://openairdocs.org/ntsb/CEN19LA127.md): Beech 50 · Sheldon, MO · Accident · No injuries · Class 3 · Limited · Final report · Apr 26, 2019 · N29Y · Substantial damage
  > A partial loss of engine power on both engines due to detonation for undetermined reasons.
- [NTSB CEN19LA126](https://openairdocs.org/ntsb/CEN19LA126.md): Piper PA28 · Dwight, IL · Accident · No injuries · Class 3 · Limited · Final report · Apr 19, 2019 · N838JH · Substantial damage
  > A partial loss of engine power due to a restriction in fuel flow for undetermined reasons.

Next page: https://openairdocs.org/ntsb-events/342/sequence.md?page=14

## 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=13

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