# NTSB investigations: Engine exhaust

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 1 of 2 · 68 cases

## Latest cases

- [NTSB CEN25LA225](https://openairdocs.org/ntsb/CEN25LA225.md): Tecnam P2010 · Temple, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 26, 2025 · N258CM · Substantial damage
  > The loss of engine power due to a failed muffler flame tube assembly which resulted in an exhaust blockage.
- [NTSB ERA25LA159](https://openairdocs.org/ntsb/ERA25LA159.md): Silvaire Luscombe 8A · New Port Richey, FL · Accident · No injuries · Class 3 · Limited · Final report · Mar 27, 2025 · N28790 · Substantial damage
  > Maintenance personnel’s inadequate inspection of the exhaust system, which allowed exhaust gases to enter the induction system from cracks in the exhaust manifold, resulting in a total loss of engine power and a subsequent forced landing.
- [NTSB ERA24LA276](https://openairdocs.org/ntsb/ERA24LA276.md): Snyder Searey · New Ipswich, NH · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 25, 2024 · N453TS · Substantial damage
  > A total loss of engine power due to the exhaust muffler and tailpipe assembly separating from its attach points and impacting the propeller.
- [NTSB CEN24LA145](https://openairdocs.org/ntsb/CEN24LA145.md): Mooney M20E · Alpine, AR · Accident · Minor injuries · Class 3 · Limited · Final report · Apr 2, 2024 · N86UM · Substantial damage
  > The improper maintenance of the cabin air and exhaust system which resulted in a cracked exhaust pipe and damaged cabin air tubing, and the subsequent elevated carbon monoxide levels in the cockpit and a forced landing to unsuitable terrain after the pilot…
- [NTSB ERA24LA144](https://openairdocs.org/ntsb/ERA24LA144.md): Glasair Sportsman 2+2 · Fort Meade, FL · Accident · No injuries · Class 3 · Limited · Final report · Mar 14, 2024 · N76TG · Destroyed
  > The pilot’s inadequate inspection of the airplane following an inflight smoke event, which result in separation of the exhaust pipe and hot exhaust igniting the engine cowling, and a subsequent loss of engine power.
- [NTSB ANC24LA005](https://openairdocs.org/ntsb/ANC24LA005.md): Diamond Aircraft Ind DA 40 · Kapolei, HI · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 4, 2023 · N691YW · Substantial damage
  > A partial loss of engine power due to lose baffling from the muffler, which resulted in an obstruction of the exhaust system.
- [NTSB CEN23LA418](https://openairdocs.org/ntsb/CEN23LA418.md): Beech C23 · Gonzales, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 24, 2023 · N18994 · Substantial damage
  > The loss of engine power during go-around due to a failed muffler flame tube, which resulted in an exhaust blockage. Contributing to the accident was maintenance personnel's inadequate inspection of the exhaust system during the most recent maintenance.
- [NTSB ERA23LA261](https://openairdocs.org/ntsb/ERA23LA261.md): Dassault-Breguet Falcon 10 · Panama City, FL · Accident · No injuries · Class 3 · Limited · Final report · Jun 7, 2023 · N87RT · Substantial damage
  > The flight crew’s failure to appropriately configure the airplane for landing, which resulted in a failed attempt to utilize the thrust reversers during landing and the inability to stop the airplane using its brakes due to increased forward thrust.…
- [NTSB CEN22LA256](https://openairdocs.org/ntsb/CEN22LA256.md): Bellanca 17-30A · Madison, MS · Accident · No injuries · Class 3 · Limited · Final report · Jun 16, 2022 · N39880 · Substantial damage
  > The failure of a muffler weld due to inadequate maintenance, which resulted in a fire.
- [NTSB CEN22LA253](https://openairdocs.org/ntsb/CEN22LA253.md): Cessna T206H · Austin, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 16, 2022 · N52854 · Substantial damage
  > A total loss of engine power due to an engine fire that resulted from failure of the turbocharger exhaust clamp, which allowed hot exhaust gases to damage other vital engine components.
- [NTSB ERA22LA224](https://openairdocs.org/ntsb/ERA22LA224.md): Air Tractor AT-301 · Somerville, TN · Accident · Minor injuries · Class 3 · Limited · Final report · May 11, 2022 · N31580 · Substantial damage
  > The inadequate inspection and maintenance of the engine exhaust system, which resulted in an in-flight fire.
- [NTSB ERA22FA114](https://openairdocs.org/ntsb/ERA22FA114.md): Cessna 310 · Danville, VA · Accident · 1 fatal · Class 3 · Field · Final report · Feb 1, 2022 · N622QT · Destroyed
  > The pilot’s impairment due to exposure to carbon monoxide as a result of undetected engine exhaust penetration into the cockpit, resulting in the pilot's failure to maintain a minimum controllable airspeed after partially securing an engine after takeoff.
- [NTSB WPR22LA080](https://openairdocs.org/ntsb/WPR22LA080.md): Walter Tachiki Tachiki 750 Cruzer · Spanish Fork, UT · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 14, 2022 · N145WT · Substantial damage
  > A partial loss of engine power due to an obstructed catalytic converter, which most likely resulted from the pilot’s failure to properly repair or replace it after it was likely damaged during a previous incident. Contributing to the accident was the pilot’s…
- [NTSB CEN21LA379](https://openairdocs.org/ntsb/CEN21LA379.md): Diamond Aircraft Industries DA-42 · Bellefontaine, OH · Accident · No injuries · Class 3 · Limited · Final report · Aug 17, 2021 · N215BN · Substantial damage
  > The improper position of the right engine’s fuel feed pump bolt, which led to a total loss of power on the right engine, and the left engine's partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB WPR21LA250](https://openairdocs.org/ntsb/WPR21LA250.md): L-Bird CCX-2000 · Hood River, OR · Accident · No injuries · Class 3 · Limited · Final report · Jun 28, 2021 · N10TA · Substantial damage
  > The total loss of engine power due to improper construction of the muffler, which resulted in separation of the internal components.
- [NTSB ERA21FA253](https://openairdocs.org/ntsb/ERA21FA253.md): Vans RV6 · Buckingham, PA · Accident · 1 fatal · Class 3 · Field · Final report · Jun 15, 2021 · N74MS · Substantial damage
  > An exhaust system leak that resulted in failure of the oil quick drain, a loss of oil lubrication, an in-flight fire, and the pilot’s subsequent loss of airplane control.
- [NTSB ENG21LA013](https://openairdocs.org/ntsb/ENG21LA013.md): Boeing 767-338 · Ontario, CA · Incident · Class 3 · Limited · Final report · Jan 29, 2021 · N363CM · Minor damage
  > The fatigue fracture and liberation of two airfoils from a low pressure turbine stage 5 nozzle segment that impacted and damaged the downstream low pressure stage 5 blades creating an initial imbalance load in the engine’s low pressure turbine rotor…
- [NTSB CEN21LA070](https://openairdocs.org/ntsb/CEN21LA070.md): Piper PA38 · Franklin, AR · Accident · 2 fatal · Class 3 · Limited · Final report · Nov 30, 2020 · N9879T · Destroyed
  > The impairment of both pilots from carbon monoxide exposure due to a degraded muffler. Contributing to the accident was the inadequate maintenance inspection, which failed to detect the degraded muffler.
- [NTSB CEN20LA256](https://openairdocs.org/ntsb/CEN20LA256.md): Cessna 320 · Round Rock, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Jul 1, 2020 · N19AS · Destroyed
  > Improper maintenance that led to a loss of engine power due to a failed left engine magneto, the pilot’s improper application of single engine emergency procedures, and his failure to maintain control of the airplane which resulted in a collision with trees.
- [NTSB ERA20FA068](https://openairdocs.org/ntsb/ERA20FA068.md): Cessna 172 · Newborn, GA · Accident · 1 fatal · Class 3 · Field · Final report · Jan 6, 2020 · N1612F · Destroyed
  > The pilot’s impairment/incapacitation from carbon monoxide poisoning due to a degraded muffler. Contributing to the accident was the pilot’s failure to properly maintain the airplane.
- [NTSB WPR20LA033](https://openairdocs.org/ntsb/WPR20LA033.md): Beech 35 · Caldwell, ID · Accident · No injuries · Class 3 · Limited · Final report · Nov 23, 2019 · N7956M · Substantial damage
  > The total loss of engine power due to the separation of the wastegate exhaust elbow.
- [NTSB ERA20FA031](https://openairdocs.org/ntsb/ERA20FA031.md): Cessna 150 · New Bedford, MA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 4, 2019 · N714LK · Destroyed
  > Pilot impairment due to exposure to carbon monoxide as a result of undetected corrosion and holes in the engine’s left exhaust muffler.
- [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 CEN19LA146](https://openairdocs.org/ntsb/CEN19LA146.md): Sikorsky S76 · Morrilton, AR · Accident · No injuries · Class 3 · Limited · Final report · May 15, 2019 · N761AF · Substantial damage
  > The improper securing of the exhaust duct bolts, which resulted in the duct becoming unseated and substantial heat damage to the tail rotor drive shaft.
- [NTSB WPR19FA022](https://openairdocs.org/ntsb/WPR19FA022.md): Piper PA28 · Guthrie Center, IA · Accident · 4 fatal · Class 2 · Field · Final report · Nov 9, 2018 · N91770 · Substantial damage
  > Pilot incapacitation due to carbon monoxide poisoning as a result of an undetected crack in an engine exhaust muffler, which permitted entry of exhaust gasses into the cabin via the cabin heat system.
- [NTSB WPR19LA010](https://openairdocs.org/ntsb/WPR19LA010.md): Piper PA46 · Hurricane, UT · Accident · Serious injuries · Limited investigation · Final report · Oct 21, 2018 · N413LL · Substantial damage
  > The mechanic’s failure to properly align the engine exhaust crossover pipe during replacement, and his supervisor’s failure to properly inspect the installation, which resulted in an in-flight fire and the loss of engine power.
- [NTSB CEN18LA392](https://openairdocs.org/ntsb/CEN18LA392.md): Cirrus SR22 · Addison, TX · Accident · No injuries · Limited investigation · Final report · Sep 30, 2018 · N818GM · Substantial damage
  > Maintenance personnel’s improper installation of the muffler attachment hardware, which resulted in the muffler separating in flight, thermal damage that interrupted the magnetos’ function, and the subsequent total loss of engine power.
- [NTSB ERA18LA214](https://openairdocs.org/ntsb/ERA18LA214.md): Pipistrel Sinus 912 · West Palm Beach, FL · Accident · No injuries · Class 3 · Limited · Final report · Aug 12, 2018 · N467L · Destroyed
  > The fatigue failure of the exhaust system manifold, which resulted in a ground fire after landing.
- [NTSB CEN18LA284](https://openairdocs.org/ntsb/CEN18LA284.md): Toomey Quickie · Zanesville, OH · Accident · No injuries · Limited investigation · Final report · Jul 19, 2018 · N23JH · Substantial damage
  > The failure of the exhaust manifold and a loose mixture screw, which resulted in a partial loss of engine power.
- [NTSB ERA18FA146](https://openairdocs.org/ntsb/ERA18FA146.md): Beech 35A33 · Jacksonville, AL · Accident · 1 fatal · Field investigation · Final report · May 13, 2018 · N486T · Destroyed
  > The pilot/mechanic's inadequate inspection of the exhaust system, including the left muffler and heat exchanger, which precluded his detection of preexisting cracks and led to a missed opportunity to replace the components. The inadequate inspection allowed…
- [NTSB WPR17LA175](https://openairdocs.org/ntsb/WPR17LA175.md): Grumman AA1 · Phoenix, AZ · Accident · Serious injuries · Limited investigation · Final report · Aug 1, 2017 · N6216L · Substantial damage
  > The partial loss of engine power during initial climb due to the No. 3 cylinder exhaust valve becoming stuck open due to deposit buildup in the exhaust valve stem and guide and the pilot’s exceedance of the airplane’s critical angle of attack while attempting…
- [NTSB CEN17FA207](https://openairdocs.org/ntsb/CEN17FA207.md): Varga 2150A · Bowling Green, OH · Accident · 1 fatal · Field investigation · Final report · Jun 1, 2017 · N4635V · Substantial damage
  > The pilot's loss of control due to impairment from carbon monoxide poisoning. Contributing to the accident was the corrosion of the heat exchanger and the failure of maintenance personnel to adequately inspect and repair or replace the exchanger during the…
- [NTSB CEN17LA101](https://openairdocs.org/ntsb/CEN17LA101.md): Mooney M20C · Ellendale, MN · Accident · Serious injuries · Limited investigation · Final report · Feb 3, 2017 · N9149V · Substantial damage
  > The pilot’s incapacitation from carbon monoxide poisoning in flight due to cracks in the exhaust muffler, which resulted in the airplane’s continued flight until it ran out of fuel and its subsequent collision with terrain.
- [NTSB ANC16FA065](https://openairdocs.org/ntsb/ANC16FA065.md): Hefty Polar Cub · Anchorage, AK · Accident · 1 fatal · Field investigation · Final report · Sep 11, 2016 · N62905 · Destroyed
  > The pilot's severe impairment from carbon monoxide poisoning in flight, which resulted in a loss of control and a subsequent collision with trees and terrain.
- [NTSB CEN16IA238](https://openairdocs.org/ntsb/CEN16IA238.md): Enstrom 280 · Zeeland, MI · Incident · No injuries · Incident investigation · Final report · Jun 27, 2016 · N518EG · Minor damage
  > The exhaust band clamp failure, which resulted in an engine fire due to hot exhaust gases entering the engine compartment.
- [NTSB ERA16FA185](https://openairdocs.org/ntsb/ERA16FA185.md): Beech A36TC · Tupelo, MS · Accident · 4 fatal · Field investigation · Final report · May 16, 2016 · N60RW · Destroyed
  > A preexisting stress rupture that initiated at a spot weld in the turbocharger v-band exhaust clamp, which resulted in the failure of the clamp and separation of the exhaust tailpipe, an in-flight fire, and subsequent impact with terrain.
- [NTSB CEN16LA151](https://openairdocs.org/ntsb/CEN16LA151.md): Cirrus Design SR20 · Caldwell, TX · Accident · No injuries · Limited investigation · Final report · Apr 10, 2016 · N8PY · Substantial damage
  > The failure of the No. 5 cylinder's exhaust pipe for undetermined reasons, which resulted in a partial loss of engine power. Contributing to the accident was the pilot’s fast and long landing, which led to a runway overrun.
- [NTSB CEN16FA130](https://openairdocs.org/ntsb/CEN16FA130.md): Aeronca 7AC · Ellsworth, NE · Accident · 1 fatal · Field investigation · Final report · Mar 20, 2016 · N84580 · Destroyed
  > The pilot's impairment due to carbon monoxide poisoning from a known cracked engine exhaust muffler, which resulted in a loss of aircraft control. Contributing to the accident was the pilot's decision to continue flying the airplane without properly repairing…
- [NTSB ERA16LA053](https://openairdocs.org/ntsb/ERA16LA053.md): Piper PA-32 · Opa Locka, FL · Accident · Serious injuries · Limited investigation · Final report · Dec 1, 2015 · N5568J · Substantial damage
  > Maintenance personnel's inadequate inspection of the exhaust system, which resulted in the escape of exhaust gases into the engine compartment and a subsequent total loss of engine power.
- [NTSB CEN15LA402](https://openairdocs.org/ntsb/CEN15LA402.md): Viking Dragonfly · Freeport, IL · Accident · Serious injuries · Limited investigation · Final report · Sep 8, 2015 · N24TL · Substantial damage
  > The airplane’s degraded climb performance due to its being over its maximum gross weight and a hole in the engine exhaust.
- [NTSB WPR15LA180](https://openairdocs.org/ntsb/WPR15LA180.md): Mooney M20C · Reno, NV · Accident · No injuries · Limited investigation · Final report · Jun 8, 2015 · N7887V · Destroyed
  > The in-flight separation of the exhaust tube at a weld joint due to erosion and corrosion, which resulted in a subsequent in-flight fire.
- [NTSB WPR14LA394](https://openairdocs.org/ntsb/WPR14LA394.md): Lorentzen Lancair Legacy · Reno, NV · Accident · No injuries · Limited investigation · Final report · Sep 13, 2014 · N368W · Substantial damage
  > The shearing of mounting bolts that attached the right turbocharger to its mounting bracket during an air race, which resulted in hot exhaust gases leaking into the engine compartment and starting a fire.
- [NTSB WPR14LA249](https://openairdocs.org/ntsb/WPR14LA249.md): Piper PA 28-180 · Quincy, CA · Accident · No injuries · Limited investigation · Final report · Jun 15, 2014 · N4931L · Substantial damage
  > The partial loss of engine power during takeoff due to the separation of the exhaust baffling, which resulted in a partial blockage of airflow to the engine. Contributing to the accident was maintenance personnel’s inadequate inspection of the exhaust system…
- [NTSB WPR14TA236](https://openairdocs.org/ntsb/WPR14TA236.md): Mcdonnell Douglas Helicopter 369E · Mesa, AZ · Accident · No injuries · Final report · Jun 8, 2014 · N504MP · Substantial damage
  > The loss of engine power during cruise flight due to the decoupling of the engine’s turbine and compressor sections. Contributing to the decoupling was the excessive wear of the turbine-to-compressor coupling components due maintenance personnel’s placement…
- [NTSB ERA14FA045](https://openairdocs.org/ntsb/ERA14FA045.md): Learjet 35 · Fort Lauderdale, FL · Accident · 4 fatal · Field investigation · Final report · Nov 20, 2013 · XA-USD · Destroyed
  > The pilot's failure to maintain control of the airplane following an inflight deployment of the left engine thrust reverser. Contributing to the accident was the flight crew's failure to perform the appropriate emergency procedures, the copilot's lack of…
- [NTSB CEN14FA024](https://openairdocs.org/ntsb/CEN14FA024.md): Bellanca 14-19-3A · Boerne, TX · Accident · 1 fatal · Field investigation · Final report · Oct 27, 2013 · N11RC · Destroyed
  > A defective exhaust system that allowed carbon monoxide to enter the cabin and impair the pilot, rendering him unable to control the airplane.
- [NTSB WPR13LA366](https://openairdocs.org/ntsb/WPR13LA366.md): Piper PA-28-180 · Overgaard, AZ · Accident · No injuries · Limited investigation · Final report · Aug 10, 2013 · N9752J · Substantial damage
  > The partial loss of engine power during takeoff due to the separation of the exhaust baffling, which resulted in a partial blockage of airflow. Contributing to the accident was inadequate maintenance of the exhaust system.
- [NTSB WPR13LA318](https://openairdocs.org/ntsb/WPR13LA318.md): Chicco Quicksilver Sport II · Newbury Park, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 29, 2013 · N2812 · Substantial damage
  > The partial loss of engine power while maneuvering due to the blockage of the exhaust system by broken internal engine baffles that had shifted during the flight, which resulted in a forced landing and subsequent impact with terrain.
- [NTSB ERA12LA401](https://openairdocs.org/ntsb/ERA12LA401.md): Beech 400A · Atlanta, GA · Accident · Serious injuries · Limited investigation · Final report · Jun 18, 2012 · N826JH · Substantial damage
  > The flight crew's failure to obtain the proper airspeed for landing, which resulted in the airplane touching down too fast with inadequate runway remaining to stop and a subsequent runway overrun. Contributing to the accident were the failure of either pilot…
- [NTSB ERA12FA225](https://openairdocs.org/ntsb/ERA12FA225.md): Cessna 501 · Franklin, NC · Accident · 5 fatal · Field investigation · Final report · Mar 15, 2012 · N7700T · Substantial damage
  > The pilot's failure to achieve a stabilized approach, resulting in a nose-first, bounced landing. Contributing to the accident was the pilot's activation of only one thrust reverser, resulting in asymmetrical thrust.

Next page: https://openairdocs.org/ntsb-findings/010578/cases.md?page=2

## 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", '010578'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/010578/cases

---
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.