# NTSB investigations: Air intake

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 WPR25LA175](https://openairdocs.org/ntsb/WPR25LA175.md): Cessna 182P · Hyampom, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 13, 2025 · N78720 · Substantial damage
  > The pilot’s failure to use carburetor heat, which resulted in a loss of engine power due to carburetor icing and a subsequent impact with terrain during a forced landing.
- [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 CEN25LA054](https://openairdocs.org/ntsb/CEN25LA054.md): American AA-1B · Brenham, TX · Accident · No injuries · Class 3 · Limited · Final report · Dec 1, 2024 · N6242L · Substantial damage
  > A partial loss of engine power due to an obstructed induction system from a mud dauber nest.
- [NTSB ERA24LA333](https://openairdocs.org/ntsb/ERA24LA333.md): Cirrus Design SR20 · Egg Harbor City, NJ · Accident · No injuries · Class 3 · Limited · Final report · Jul 31, 2024 · N124RR · Substantial damage
  > A partial loss of engine power due to the fatigue failure of the alternate air valve, which separated and partially obstructed the engine’s induction system.
- [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 WPR24LA154](https://openairdocs.org/ntsb/WPR24LA154.md): Cessna 172G · Lakeport, CA · Accident · No injuries · Class 3 · Limited · Final report · May 16, 2024 · N4448L · Substantial damage
  > The pilot’s inadequate use of carburetor heat, which resulted in a total loss of engine power shortly after takeoff due to fuel starvation as a result of carburetor ice.
- [NTSB ERA24FA160](https://openairdocs.org/ntsb/ERA24FA160.md): Arthur B Canning Merlin Lite · Mulberry, FL · Accident · 1 fatal · Class 3 · Field · Final report · Apr 2, 2024 · N622PC · Substantial damage
  > The pilot/builder’s modifications of the motorglider’s engine, which resulted in an excessively lean fuel air mixture, preignition, piston failure, and a subsequent total loss of engine power during the initial climb. Contributing to the outcome was the…
- [NTSB ERA24FA078](https://openairdocs.org/ntsb/ERA24FA078.md): Piper PA46R-350T · Mooresville, NC · Accident · 1 fatal · Class 3 · Field · Final report · Dec 31, 2023 · N539MA · Substantial damage
  > A missing induction clamp, which allowed the induction hose to the left side intercooler to become disconnected, resulting in a total loss of engine power due to an overly rich fuel/air mixture.
- [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 ERA22LA307](https://openairdocs.org/ntsb/ERA22LA307.md): Mooney M20F · Cragsmoor, NY · Accident · No injuries · Class 3 · Limited · Final report · Jul 10, 2022 · N600FS · Substantial damage
  > The pilot’s decision to continue toward rising terrain despite observing the airplane’s decreased climb performance after takeoff, which resulted in flight into terrain.
- [NTSB CEN22LA308](https://openairdocs.org/ntsb/CEN22LA308.md): Vans RV6 · Aurora, CO · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 3, 2022 · N184CB · Substantial damage
  > A total loss of engine power due to foreign object debris blockage of engine air intake. The source of the debris could not be determined based on the available information.
- [NTSB ERA22LA216](https://openairdocs.org/ntsb/ERA22LA216.md): Grumman AA1 · Seneca, SC · Accident · Serious injuries · Class 3 · Limited · Final report · May 2, 2022 · N15LM · Substantial damage
  > A dislodged air filter element, which restricted airflow to the carburetor resulting in a loss of engine power.
- [NTSB WPR22LA133](https://openairdocs.org/ntsb/WPR22LA133.md): Adams Dennis Allen Varieze · Mojave, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 26, 2022 · N88KL · Substantial damage
  > The failure of the carburetor intake Sceet tubing, which resulted in a total loss of engine power.
- [NTSB CEN20LA258](https://openairdocs.org/ntsb/CEN20LA258.md): Piper PA28 · Bridgeport, TX · Accident · No injuries · Class 3 · Limited · Final report · Jul 2, 2020 · N6530W · Substantial damage
  > Maintenance personnel’s inadequate inspection, which resulted in a total loss of engine power due to a restricted air intake-induction system.
- [NTSB WPR20LA180](https://openairdocs.org/ntsb/WPR20LA180.md): Bellanca 7KCAB · Renton, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 12, 2020 · N36339 · Substantial damage
  > Maintenance personnel’s inadequate post-maintenance inspections that resulted in the total loss of engine power due to a blockage in the air intake.
- [NTSB WPR20LA122](https://openairdocs.org/ntsb/WPR20LA122.md): Buckman Bucks Special · Prescott, WA · Accident · No injuries · Class 3 · Limited · Final report · Apr 9, 2020 · N9065F · Substantial damage
  > Diminished engine performance due to carburetor icing conditions and multiple mechanical anomalies that did not allow for the airplane to attain adequate airspeed during takeoff from a planted field and failure to maintain clearance from obstructions.…
- [NTSB WPR20FA016](https://openairdocs.org/ntsb/WPR20FA016.md): Enstrom 280F · Jordan Valley, OR · Accident · 1 fatal · Class 3 · Field · Final report · Oct 25, 2019 · N280F · Substantial damage
  > A partial loss of engine power due to a worn engine air induction hose, and a subsequent uncontrolled descent into terrain. Contributing to the accident was the failure of maintenance personnel to adequately inspect the hose, and the pilot’s decision to fly…
- [NTSB ERA19LA280](https://openairdocs.org/ntsb/ERA19LA280.md): Cessna 172 · Manville, NJ · Accident · No injuries · Class 3 · Limited · Final report · Sep 24, 2019 · N78192 · Substantial damage
  > A total loss of engine power due to the ingestion of sealant material that had loosened inside the carburetor airbox.
- [NTSB ERA19LA274](https://openairdocs.org/ntsb/ERA19LA274.md): Socata TB9 · Fort Meade, MD · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 17, 2019 · N2824R · Substantial damage
  > The failure of the carburetor intake scat tubing, which resulted in a partial loss of engine power.
- [NTSB CEN19LA303](https://openairdocs.org/ntsb/CEN19LA303.md): Phantom Aeronautics X-1 · Van Wert, OH · Accident · No injuries · Class 3 · Limited · Final report · Sep 4, 2019 · N111JC · Substantial damage
  > A loss of engine power due to the separation of the carburetor from the intake socket resulting from the improper installation of the intake silencer.
- [NTSB CEN19FA279](https://openairdocs.org/ntsb/CEN19FA279.md): Aero Commander 200 · Howell, MI · Accident · 2 fatal · Class 3 · Field · Final report · Aug 20, 2019 · N200HS · Substantial damage
  > The improper installation of the engine’s metal intake screen, which allowed the filter element to become displaced and subsequently lodge in the intake, blocking intake air and causing the total loss of engine power, at low altitude and low airspeed…
- [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 ERA19LA033](https://openairdocs.org/ntsb/ERA19LA033.md): Piper PA28 · New Market, VA · Accident · No injuries · Limited investigation · Final report · Oct 25, 2018 · N68DW · Substantial damage
  > A loss of engine power on takeoff due to restricted air flow to the engine.
- [NTSB CEN19FA008](https://openairdocs.org/ntsb/CEN19FA008.md): Cessna 182 · Canoncito, NM · Accident · 2 fatal · Class 3 · Field · Final report · Oct 16, 2018 · N9326G · Substantial damage
  > The partial loss of engine power due to induction system icing. Contributing to the accident was the fractured carburetor heat control cable, which rendered the carburetor heat inoperative.
- [NTSB WPR17LA153](https://openairdocs.org/ntsb/WPR17LA153.md): Clark James T Vans RV8 · Spokane, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 14, 2017 · N559JC · Substantial damage
  > An inflight engine fire for reasons that could not be determined based on the available information, which melted the air filter element and obstructed the engine's air intakes, resulting in a total loss of engine power.
- [NTSB ERA17LA128](https://openairdocs.org/ntsb/ERA17LA128.md): Piper PA28 · Tampa, FL · Accident · No injuries · Limited investigation · Final report · Mar 12, 2017 · N8447R · Substantial damage
  > A collapsed engine induction duct, which resulted in restricted air flow to the engine and a subsequent loss of engine power. Contributing to the accident was the operator's failure to ensure that the correct induction duct was installed.
- [NTSB WPR16LA184](https://openairdocs.org/ntsb/WPR16LA184.md): OGG Richard A OGG Glasair I · Reno, NV · Accident · No injuries · Limited investigation · Final report · Sep 17, 2016 · N70GG · Substantial damage
  > The failure of an induction elbow following an engine backfire, which resulted in an in-flight fire and loss of engine power.
- [NTSB GAA16CA465](https://openairdocs.org/ntsb/GAA16CA465.md): Cessna TR182 · South Lake Tahoe, CA · Accident · No injuries · Data collection · Final report · Sep 5, 2016 · N738GK · Substantial damage
  > The pilot's failure to maintain directional control during an attempted go-around, which resulted in a runway excursion and a nose over. Contributing to the accident was the pilot's failure to remove the carburetor heat during the attempted go-around in high…
- [NTSB ERA16LA280](https://openairdocs.org/ntsb/ERA16LA280.md): Piper PA 28R-201 · Northampton, MA · Accident · No injuries · Limited investigation · Final report · Aug 6, 2016 · N3783M · Substantial damage
  > The failure of the alternate air valve plate hinge pin, which caused the alternate air valve plate to lodge in the fuel servo assembly, which resulted in a restriction of air to the fuel servo assembly, a loss of engine power, and an off-airport emergency…
- [NTSB ERA16LA247](https://openairdocs.org/ntsb/ERA16LA247.md): Mormile Francis W Aventura II · West Pittsfield, ME · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 2016 · N932MC · Substantial damage
  > The pilot's failure to maintain airplane control after a total loss of engine power due to carburetor icing, which accumulated because the carburetor heat was not functioning.
- [NTSB CEN15LA106](https://openairdocs.org/ntsb/CEN15LA106.md): Diamond Aircraft Ind DA 20 C1 · Shipshewana, IN · Accident · No injuries · Limited investigation · Final report · Jan 19, 2015 · N979DC · Substantial damage
  > The total loss of engine power due to impact ice obstructing the primary air induction system, which resulted from the student pilot’s failure to operate the alternate air control. Contributing to the accident was the student pilot’s lack of knowledge about…
- [NTSB ERA14LA392](https://openairdocs.org/ntsb/ERA14LA392.md): Bellanca 7GCBC · Itta Bena, MS · Accident · Serious injuries · Limited investigation · Final report · Aug 16, 2014 · N36236 · Substantial damage
  > A total loss of engine power during maneuvering due to an obstruction from air intake filter material being ingested into the carburetor, which resulted in a forced landing.
- [NTSB CEN14LA161](https://openairdocs.org/ntsb/CEN14LA161.md): Cessna 150M · Greenwood, IN · Accident · Serious injuries · Limited investigation · Final report · Mar 18, 2014 · N9432U · Substantial damage
  > The flight instructor's failure to ensure that carburetor heat was used while performing maneuvers at reduced power settings in conditions conducive to the formation of carburetor ice, which resulted in a partial loss of engine power due to carburetor ice.…
- [NTSB WPR14FA094](https://openairdocs.org/ntsb/WPR14FA094.md): Beech B36TC · Yellow Pine, ID · Accident · 5 fatal · Field investigation · Final report · Dec 1, 2013 · N36ML · Destroyed
  > The pilot’s continued flight into known light-to-moderate icing conditions over mountainous terrain. Contributing to the accident was the loss of engine power due to induction icing.
- [NTSB CEN13LA305](https://openairdocs.org/ntsb/CEN13LA305.md): Stinson 108-3 · Beaumont, TX · Accident · Minor injuries · Limited investigation · Final report · May 23, 2013 · N121CM · Substantial damage
  > The lack of a forward clamp on the carburetor heat box rubber boot, which allowed the boot to be ingested into the inlet of the carburetor heat box, restricting the airflow and leading to a subsequent partial loss of engine power.
- [NTSB CEN13FA121](https://openairdocs.org/ntsb/CEN13FA121.md): Eurocopter EC130 B4 · Seminole, OK · Accident · Serious injuries · Field investigation · Final report · Jan 2, 2013 · N334AM · Substantial damage
  > The loss of engine power due to ice ingestion. Contributing to the accident was maintenance personnel’s delayed decision to install the helicopter's engine inlet cover until after the engine had been exposed to moisture and freezing temperatures and their…
- [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…
- [NTSB ERA12FA143](https://openairdocs.org/ntsb/ERA12FA143.md): Cessna 150G · Fitchburg, MA · Accident · Serious injuries · Field investigation · Final report · Jan 11, 2012 · N4041J · Substantial damage
  > A partial loss of engine power due to the formation of carburetor ice and the flight instructor's improper application of carburetor heat.
- [NTSB CEN11LA563](https://openairdocs.org/ntsb/CEN11LA563.md): Grumman Acft ENG Cor-Schweizer G-164A · Mansfield, SD · Accident · No injuries · Limited investigation · Final report · Aug 10, 2011 · N127FC · Substantial damage
  > The loss of engine power due to debris in the engine air intake system.
- [NTSB ERA11LA416](https://openairdocs.org/ntsb/ERA11LA416.md): Champion 7ECA · Hinesville, GA · Accident · Serious injuries · Limited investigation · Final report · Jul 23, 2011 · N5191X · Substantial damage
  > The total loss of engine power due to the improper installation of the carburetor air filter by maintenance personnel, which resulted in the filter becoming dislodged and obstructing the carburetor. Contributing to the accident was the pilot did not maintain…
- [NTSB WPR11FA348](https://openairdocs.org/ntsb/WPR11FA348.md): Cessna 210-5(205) · Darby, MT · Accident · Minor injuries · Field investigation · Final report · Jul 22, 2011 · N8427Z · Substantial damage
  > The fatigue failure of the aluminum air intake duct, which resulted in material being ingested into the engine cylinders and a subsequent loss of engine power during cruise flight.
- [NTSB CEN11FA007](https://openairdocs.org/ntsb/CEN11FA007.md): Piper PA-32R-300 · Naperville, IL · Accident · Serious injuries · Field investigation · Final report · Oct 6, 2010 · N3402Q · Substantial damage
  > The pilot’s failure to abort the takeoff when he realized the airplane was not attaining sufficient takeoff and climb performance. Contributing to the accident was the airplane’s partial loss of engine power due to an obstruction of the fuel servo air inlet…
- [NTSB WPR10LA284](https://openairdocs.org/ntsb/WPR10LA284.md): Piper PA-46-310P · Ontario, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 10, 2010 · N121HJ · Substantial damage
  > A loss of engine power due to the in-flight separation of the 1-3-5 cylinder induction tube elbow, which was caused by the improper installation of the induction tube elbow by maintenance personnel.
- [NTSB WPR10LA122](https://openairdocs.org/ntsb/WPR10LA122.md): Grumman Acft ENG Cor-Schweizer G-164B · Pullman, WA · Accident · No injuries · Limited investigation · Final report · Jan 30, 2010 · N6799K · Substantial damage
  > A partial loss of engine power during takeoff due to a bird's nest being sucked into the induction air ducting.
- [NTSB WPR09CA303](https://openairdocs.org/ntsb/WPR09CA303.md): Cessna A188B · Ogden, UT · Accident · No injuries · Data collection · Final report · Jun 20, 2009 · N731GE · Substantial damage
  > A partial loss of engine power due to the number one cylinder air induction tube becoming disconnected for undetermined reasons.
- [NTSB ANC09LA042](https://openairdocs.org/ntsb/ANC09LA042.md): Piper PA-24-250 · Wasilla, AK · Accident · No injuries · Limited investigation · Final report · May 16, 2009 · N7440P · Substantial damage
  > A loss of engine power due to the blockage of the carburetor air inlet by a piece of engine baffling. Contributing to the accident was a worn engine baffle, and the pilot/owner's failure to have the engine baffle replaced.
- [NTSB CEN09LA122](https://openairdocs.org/ntsb/CEN09LA122.md): Beech A36TC · Three Rivers, MI · Accident · No injuries · Limited investigation · Final report · Jan 6, 2009 · N92WT · Substantial damage
  > The pilot's decision to continue the flight into an area with conditions that were conducive to icing and the loss of engine power due to induction icing.
- [NTSB CEN09LA051](https://openairdocs.org/ntsb/CEN09LA051.md): Johnson Leonard G Cozy MK-IV · Osceola, MO · Accident · Serious injuries · Limited investigation · Final report · Nov 5, 2008 · N637PS · Substantial damage
  > A total loss of engine power due to an obstruction of airflow as a result of the pilot's inadvertent actuation of the landing brake.
- [NTSB DFW08LA226](https://openairdocs.org/ntsb/DFW08LA226.md): Cessna 182D · Orange Grove, TX · Accident · Serious injuries · Limited investigation · Final report · Sep 5, 2008 · N8979X · Substantial damage
  > A total loss of engine power due to an improperly installed intake manifold tube.
- [NTSB SEA08LA087](https://openairdocs.org/ntsb/SEA08LA087.md): Maule M-4 · Bishop, CA · Accident · No injuries · Limited investigation · Final report · Mar 7, 2008 · N51430 · Substantial damage
  > A loss of engine power due to foreign object ingestion in the induction system, which resulted in a stuck/jammed exhaust valve during the takeoff.

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01057160'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01057160/cases

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