# 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 22 of 29 · 1,419 cases

## Cases, newest first

- [NTSB CEN12LA458](https://openairdocs.org/ntsb/CEN12LA458.md): Grumman G-164A · Egeland, ND · Accident · No injuries · Limited investigation · Final report · Jul 7, 2012 · N6583 · Substantial damage
  > The partial loss of engine power for reasons that could not be determined during postaccident examinations.
- [NTSB ANC12LA068](https://openairdocs.org/ntsb/ANC12LA068.md): Shorey Timothy A Preceptor Stol King · North Pole, AK · Accident · No injuries · Limited investigation · Final report · Jul 7, 2012 · N919WP · Substantial damage
  > A total loss of engine power due to a binding drive belt while in the airport traffic pattern.
- [NTSB ANC12CA072](https://openairdocs.org/ntsb/ANC12CA072.md): Piper PA-12 · Quinhagak, AK · Accident · No injuries · Data collection · Final report · Jul 6, 2012 · N7779H · Substantial damage
  > The pilot's failure to use continuous carburetor heat while operating in conditions conducive to carburetor icing, which resulted in the development of carburetor ice and a subsequent partial loss of engine power.
- [NTSB ERA12LA428](https://openairdocs.org/ntsb/ERA12LA428.md): Cessna R172K · Greene, NY · Accident · No injuries · Limited investigation · Final report · Jul 1, 2012 · N758JQ · Substantial damage
  > An undetected fatigue crack on the outer surface of the No. 3 cylinder barrel that could only have been detected visually and not by a differential compression test, resulting in separation of the head from the barrel and a subsequent partial loss of engine…
- [NTSB ERA12FA423](https://openairdocs.org/ntsb/ERA12FA423.md): Piper PA-31P · Dalton, GA · Accident · 1 fatal · Field investigation · Final report · Jun 30, 2012 · N33CG · Substantial damage
  > The pilot’s failure to maintain airplane control following loss of power in the right engine for reasons that could not be determined because of fire and impact damage. Contributing to the accident was the pilot’s delayed feathering of the right propeller…
- [NTSB ERA12LA425](https://openairdocs.org/ntsb/ERA12LA425.md): Piper PA-28-140 · Lakewood, NJ · Accident · No injuries · Limited investigation · Final report · Jun 29, 2012 · N449FL · Substantial damage
  > The loss of engine power during climb for reasons that could not be determined during postaccident examination of the engine and engine systems or during postaccident operational testing of the engine.
- [NTSB WPR12LA275](https://openairdocs.org/ntsb/WPR12LA275.md): Dehavilland Tiger Moth DH 82A · Fontana, CA · Accident · No injuries · Limited investigation · Final report · Jun 24, 2012 · N523R · Substantial damage
  > Partial loss of engine power during cruise flight due to a failed engine cylinder rocker assembly clamping bolt. Contributing to the accident was the failure of unknown maintenance personnel to perform a modification to the assembly that would have prevented…
- [NTSB CEN12LA388](https://openairdocs.org/ntsb/CEN12LA388.md): Cessna A150K · Mamou, LA · Accident · No injuries · Limited investigation · Final report · Jun 23, 2012 · N8380M · Substantial damage
  > The pilot's inadequate preflight inspection, which resulted in a partial loss of engine power due to fuel contamination.
- [NTSB WPR12LA267](https://openairdocs.org/ntsb/WPR12LA267.md): Robinson Helicopter R44 II · Scottsdale, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 2012 · N808WH · Substantial damage
  > The flight instructor’s failure to maintain adequate rotor rpm during a practice autorotation, which resulted in a loss of helicopter control and subsequent hard landing.
- [NTSB CEN12LA384](https://openairdocs.org/ntsb/CEN12LA384.md): Peterson-Feder-Splinter Starduster TOO · Lake Dallas, TX · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 2012 · N76NP · Substantial damage
  > A partial loss of engine power on takeoff due to a stuck intake valve on the No. 2 cylinder.
- [NTSB ANC12LA051](https://openairdocs.org/ntsb/ANC12LA051.md): Dehavilland DHC-2 · Talkeetna, AK · Accident · No injuries · Limited investigation · Final report · Jun 14, 2012 · N121KT · Substantial damage
  > The loss of engine power after departure due to the separation of an engine cylinder.
- [NTSB WPR12LA263](https://openairdocs.org/ntsb/WPR12LA263.md): Cessna A185F · Winnett, MT · Accident · No injuries · Limited investigation · Final report · Jun 13, 2012 · CG-ZVF · Substantial damage
  > A momentary loss of engine power, which led to an emergency descent at night during which the airplane collided with a wire. The reason for the loss of engine power could not be determined because postaccident examination and operation did not reveal any…
- [NTSB CEN12LA368](https://openairdocs.org/ntsb/CEN12LA368.md): Mooney M20F · Hooker, OK · Accident · Serious injuries · Limited investigation · Final report · Jun 12, 2012 · N6455Q · Substantial damage
  > The pilot’s loss of airplane control after a partial loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures, which resulted in an…
- [NTSB CEN12LA371](https://openairdocs.org/ntsb/CEN12LA371.md): Amen Star Lite · San Antonio, TX · Accident · No injuries · Limited investigation · Final report · Jun 9, 2012 · N319NP · Substantial damage
  > The separation of the fuel tank sealant coating, which traveled into the fuel pump, blocked the fuel flow, and resulted in fuel starvation to the engine.
- [NTSB WPR12LA264](https://openairdocs.org/ntsb/WPR12LA264.md): Luscombe 8 · Twentynine Palms, CA · Accident · No injuries · Limited investigation · Final report · May 29, 2012 · N2435K · Substantial damage
  > A loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA12LA365](https://openairdocs.org/ntsb/ERA12LA365.md): Cessna A188B · Dansville, NY · Accident · Minor injuries · Limited investigation · Final report · May 26, 2012 · N9629G · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12LA332](https://openairdocs.org/ntsb/CEN12LA332.md): Piper PA-22-150 · Greenfield, IN · Accident · Minor injuries · Limited investigation · Final report · May 26, 2012 · N9815D · Substantial damage
  > A partial loss of engine power for undetermined reasons during takeoff.
- [NTSB WPR12LA228](https://openairdocs.org/ntsb/WPR12LA228.md): Cessna 150L · Tulare, CA · Accident · No injuries · Limited investigation · Final report · May 23, 2012 · N11428 · Substantial damage
  > A partial loss of engine power, which was likely the result of carburetor icing.
- [NTSB CEN12LA357](https://openairdocs.org/ntsb/CEN12LA357.md): Rockwell International S-2R · Howard, SD · Accident · No injuries · Limited investigation · Final report · May 23, 2012 · N8421V · Substantial damage
  > A fractured fabricated aluminum oil line, which resulted in oil exhaustion followed by a forced landing.
- [NTSB WPR12FA222](https://openairdocs.org/ntsb/WPR12FA222.md): Cessna P210N · Glendale, CA · Accident · Minor injuries · Field investigation · Final report · May 22, 2012 · N732JL · Substantial damage
  > The partial loss of engine power during descent for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA12LA349](https://openairdocs.org/ntsb/ERA12LA349.md): Belcher, Gerald C BEL Aire 2000 · Tyre, NY · Accident · Minor injuries · Limited investigation · Final report · May 20, 2012 · N122BA · Substantial damage
  > A partial loss of engine power for reasons that could not be determined during the postaccident investigation.
- [NTSB ERA12LA346](https://openairdocs.org/ntsb/ERA12LA346.md): Robinson Helicopter R44 · Destin, FL · Accident · No injuries · Limited investigation · Final report · May 19, 2012 · N444WT · Substantial damage
  > The partial loss of engine power due to a stuck (open) exhaust valve in the No. 5 cylinder. Contributing to the accident was the operator’s failure to follow the engine manufacturer’s directives concerning cooling of the engine after flight.
- [NTSB CEN12LA306](https://openairdocs.org/ntsb/CEN12LA306.md): Taylorcraft BC12-D · Marion, AR · Accident · Minor injuries · Limited investigation · Final report · May 15, 2012 · N43635 · Substantial damage
  > The partial loss of engine power for reasons that could not be determined because examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12LA299](https://openairdocs.org/ntsb/CEN12LA299.md): Piper PA-24-250 · Shawnee, OK · Accident · No injuries · Limited investigation · Final report · May 14, 2012 · N7171P · Substantial damage
  > The improper installation of the mixture cable by maintenance personnel, which allowed the mixture cable to entangle with the landing gear during gear extension and led to the subsequent loss of engine power.
- [NTSB ERA12LA332](https://openairdocs.org/ntsb/ERA12LA332.md): Stinson SR-7B · West Ossipee, NH · Accident · Serious injuries · Limited investigation · Final report · May 13, 2012 · N16122 · Substantial damage
  > The pilot's inadequate application of carburetor heat which resulted in the formation of carburetor ice and a partial loss of engine power.
- [NTSB WPR12LA201](https://openairdocs.org/ntsb/WPR12LA201.md): Beech 3NM · Pope Valley, CA · Accident · Minor injuries · Limited investigation · Final report · May 12, 2012 · N9540 · Substantial damage
  > A loss of power in one engine during takeoff, which resulted in a forced landing in a vineyard. The reason for the loss of engine power could not be determined from the available evidence.
- [NTSB ERA12LA340](https://openairdocs.org/ntsb/ERA12LA340.md): Piper PA-28R-201T · Williston, FL · Accident · No injuries · Limited investigation · Final report · May 5, 2012 · N442G · Substantial damage
  > Loss of engine power for reasons that could not be determined during postaccident examination and testing, which included a successful postaccident engine run.
- [NTSB WPR12LA195](https://openairdocs.org/ntsb/WPR12LA195.md): Robinson R22 · Kailua-Kona, HI · Accident · Serious injuries · Limited investigation · Final report · May 3, 2012 · N209KR · Substantial damage
  > A loss of engine power while maneuvering for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA12LA312](https://openairdocs.org/ntsb/ERA12LA312.md): Shoup Ronald R RV-6A · Milton, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 30, 2012 · N819RS · Substantial damage
  > A loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA12LA318](https://openairdocs.org/ntsb/ERA12LA318.md): Temco GC-1B · Dayton, TN · Accident · Minor injuries · Limited investigation · Final report · Apr 29, 2012 · N106S · Substantial damage
  > A partial loss of engine power during low-altitude maneuvers for reasons that could not be determined because the engine examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation; however the carburetor was…
- [NTSB CEN12LA261](https://openairdocs.org/ntsb/CEN12LA261.md): Beech A36 · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · Apr 26, 2012 · N4830M · Substantial damage
  > The partial loss of engine power due to an intake valve that was stuck in the open position.
- [NTSB WPR12LA181](https://openairdocs.org/ntsb/WPR12LA181.md): Cub Crafters CC11-100 · Monmouth, OR · Accident · No injuries · Limited investigation · Final report · Apr 22, 2012 · N499CC · Substantial damage
  > A partial loss of engine power during takeoff for undetermined reasons.
- [NTSB CEN12LA255](https://openairdocs.org/ntsb/CEN12LA255.md): Cessna 150H · Wildorado, TX · Accident · Minor injuries · Limited investigation · Final report · Apr 22, 2012 · N22857 · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN12LA252](https://openairdocs.org/ntsb/CEN12LA252.md): Beech P35 · Englewood, CO · Accident · Minor injuries · Limited investigation · Final report · Apr 22, 2012 · N8518M · Substantial damage
  > The pilot’s failure to abort the takeoff after the airplane failed to gain adequate airspeed.
- [NTSB WPR12LA176](https://openairdocs.org/ntsb/WPR12LA176.md): Skykits USA Savannah ADV · Ookala, HI · Accident · Serious injuries · Limited investigation · Final report · Apr 19, 2012 · N5089F · Substantial damage
  > A loss of engine power during cruise for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot’s failure to avoid an…
- [NTSB CEN12FA250](https://openairdocs.org/ntsb/CEN12FA250.md): Sikorsky S-76B · Gulf of Mexico, LA · Accident · No injuries · Field investigation · Final report · Apr 17, 2012 · N56RD · Substantial damage
  > The intermittent loss of engine power due to a "stuck" stepper motor in the No. 2 engine's fuel control as a result of an inadequate overhaul. Contributing to the accident was the pilot's decision to continue flying the helicopter with a known defect, his…
- [NTSB CEN12LA230](https://openairdocs.org/ntsb/CEN12LA230.md): Robinson Helicopter R22 Beta · Isabel, SD · Accident · Serious injuries · Limited investigation · Final report · Apr 5, 2012 · N104MH · Substantial damage
  > The partial loss of engine power due to carburetor ice.
- [NTSB ERA12LA267](https://openairdocs.org/ntsb/ERA12LA267.md): Piper PA-28R-200 · Eastover, SC · Accident · No injuries · Limited investigation · Final report · Apr 3, 2012 · N961JD · Substantial damage
  > Inadequate or loss of through bolt preload tension, which resulted in fretting between the engine halves, the subsequent failure of one cylinder through bolt, the loosening of additional cylinder retaining studs, and the fracture of the crankcase.…
- [NTSB WPR12LA141](https://openairdocs.org/ntsb/WPR12LA141.md): Grimm RV-9A · Santa Maria, CA · Accident · No injuries · Limited investigation · Final report · Mar 20, 2012 · N629BJ · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination and testing did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA12LA241](https://openairdocs.org/ntsb/ERA12LA241.md): Cessna 172K · Belfast, ME · Accident · No injuries · Limited investigation · Final report · Mar 20, 2012 · N46492 · Substantial damage
  > The flight instructor’s failure to ensure the radio was set correctly to activate the pilot-controlled lighting, which resulted in poor positioning for a proper landing and a subsequent off-runway forced landing during an attempted go-around. Contributing to…
- [NTSB ERA12LA233](https://openairdocs.org/ntsb/ERA12LA233.md): Boehlke Kevin P 2/3 Scale Jenny · Hannacroix, NY · Accident · Serious injuries · Limited investigation · Final report · Mar 18, 2012 · N987KB · Substantial damage
  > The non-certificated pilot's improper high-speed taxi test, which resulted in a loss of control and the pilot's subsequent decision to take off to avoid trees. Also causal, was an in-flight magneto failure, which resulted in a partial loss of engine power.…
- [NTSB ERA12LA226](https://openairdocs.org/ntsb/ERA12LA226.md): Michael S/Michael K Safari · Middle Valley, TN · Accident · Serious injuries · Limited investigation · Final report · Mar 13, 2012 · N105KM · Substantial damage
  > A partial loss of engine power for reasons that could not be determined due to the postaccident condition of the airframe and engine.
- [NTSB WPR12LA125](https://openairdocs.org/ntsb/WPR12LA125.md): Aerospatiale AS 355F1 · Makakilo City, HI · Accident · No injuries · Limited investigation · Final report · Mar 3, 2012 · N101MZ · Substantial damage
  > A partial loss of engine power while maneuvering over rough/uneven terrain that was precipitated by the failure of a 3rd stage turbine blade as a result of high-cycle fatigue.
- [NTSB ERA12LA191](https://openairdocs.org/ntsb/ERA12LA191.md): Cessna 172N · Flat Rock, VA · Accident · No injuries · Limited investigation · Final report · Feb 17, 2012 · N4737D · Substantial damage
  > The partial loss of engine power due to the failure of the exhaust valve spring seat for reasons that could not be determined.
- [NTSB WPR12LA099](https://openairdocs.org/ntsb/WPR12LA099.md): Cessna 172M · Cusick, WA · Accident · No injuries · Limited investigation · Final report · Feb 9, 2012 · N5100R · Substantial damage
  > A total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB DCA12WA063](https://openairdocs.org/ntsb/DCA12WA063.md): Mcdonnell Douglas MD80 - 80 · Copenhagen, Denmark · Incident · No injuries · Foreign investigation · Feb 5, 2012 · SE-DIL · Minor damage
  > The Danish Accident Investigation Board (AIB) has notified the NTSB of an incident involving a McDonnell Douglas MD-82 that occurred on February 5, 2012. The NTSB has appointed a U.S. Accredited Representative to assist the AIB investigation under the…
- [NTSB WPR12LA092](https://openairdocs.org/ntsb/WPR12LA092.md): Piper PA-28R-201T · Kalispell, MT · Accident · Minor injuries · Limited investigation · Final report · Feb 4, 2012 · N38906 · Substantial damage
  > The partial loss of engine power due to magneto malfunction. Contributing to the accident was the lack of adherence to the manufacturer’s recommended magneto overhaul schedule.
- [NTSB CEN12LA192](https://openairdocs.org/ntsb/CEN12LA192.md): Aero Commander 100 · Seguin, TX · Accident · Minor injuries · Limited investigation · Final report · Jan 28, 2012 · N5551M · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR12LA081](https://openairdocs.org/ntsb/WPR12LA081.md): Mas Events Nemesis · Camarillo, CA · Accident · Minor injuries · Limited investigation · Final report · Jan 24, 2012 · F-WNXT · Substantial damage
  > A partial loss of engine power during cruise flight due to incorrectly installed airframe components, which came into contact with a high pressure fuel line and resulted in its failure. Contributing to the accident was an undetermined failure of the primary…
- [NTSB CEN13WA102](https://openairdocs.org/ntsb/CEN13WA102.md): Robinson Helicopter R44 · Oosterschelde, Netherlands · Incident · No injuries · Foreign investigation · Jan 21, 2012 · PH-WMW · No damage
  > On January 21, 2012, at 1430 universal coordinated time, a Robinson Helicopter Company model R44, Dutch registration PH-WMW, made an uneventful forced landing after experiencing a partial loss of engine power near Oosterschelde, The Netherlands. The pilot and…

Next page: https://openairdocs.org/ntsb-events/342/cases.md?page=23

## 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=22

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