# NTSB investigations, PA: Loss of engine power(partial) - mech failure/malf

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 NYC06CA181](https://openairdocs.org/ntsb/NYC06CA181.md): Carlson Sparrow · New Galilee, PA · Accident · Serious injuries · Data collection · Final report · Jul 10, 2006 · UNREG · Substantial damage
  > The pilot's failure to maintain airspeed, which resulted in an inadvertent stall and impact with terrain. A factor in the accident was the partial loss of engine power for undetermined reasons.
- [NTSB NYC06LA089](https://openairdocs.org/ntsb/NYC06LA089.md): Piper PA-28RT-201 · Philadelphia, PA · Accident · No injuries · Limited investigation · Final report · Apr 9, 2006 · N901AV · Substantial damage
  > A fatigue failure of the number 3 cylinder attachment studs, which resulted in a loss of engine power and subsequent forced landing.
- [NTSB IAD05LA130](https://openairdocs.org/ntsb/IAD05LA130.md): Cessna 172S · Kutztown, PA · Accident · No injuries · Limited investigation · Final report · Sep 2, 2005 · N972SP · Substantial damage
  > The pilot's failure to attain a proper touchdown point as a result of the airplane's excessive airspeed. A factor was the partial loss of engine power due to a seized exhaust valve.
- [NTSB NYC03FA164](https://openairdocs.org/ntsb/NYC03FA164.md): Hawker T Mk 7A · Pittston, PA · Accident · 1 fatal · Field investigation · Final report · Jul 22, 2003 · UNREG · Destroyed
  > The pilot's failure to abort the takeoff, after the engine experienced a partial power loss for undetermined reasons. Factors were the pilot's improper preflight planning by his failure to determine if the airplane was airworthy, and the operators inadequate…
- [NTSB NYC03FA131](https://openairdocs.org/ntsb/NYC03FA131.md): Cessna 205 · Jeannette, PA · Accident · 4 fatal · Field investigation · Final report · Jun 15, 2003 · N124A · Substantial damage
  > The loss of power caused by fragments of the air filter being ingested in the engine. A factor was the pilot's delayed decision to perform a forced landing after experiencing a partial loss of engine power.
- [NTSB NYC03IA011](https://openairdocs.org/ntsb/NYC03IA011.md): Piper PA-28-236 · Altoona, PA · Incident · No injuries · Incident investigation · Final report · Oct 18, 2002 · N4295R · Minor damage
  > A failure of the fuel selector for an undetermined reason.
- [NTSB IAD03LA002](https://openairdocs.org/ntsb/IAD03LA002.md): Taylorcraft 15A · Somerset, PA · Accident · No injuries · Limited investigation · Final report · Oct 7, 2002 · N6652N · Substantial damage
  > The mechanic's failure to discover several mechanical deficiencies during a pre-buy inspection, which either independently or collectively resulted in a subsequent engine failure. A factor was the power lines in the forced landing area.
- [NTSB NYC01LA115](https://openairdocs.org/ntsb/NYC01LA115.md): Cessna 150J · Osceola Mills, PA · Accident · Minor injuries · Limited investigation · Final report · May 5, 2001 · N51104 · Substantial damage
  > A partial power loss due to a stuck exhaust valve in the # 2 cylinder, which resulted in a forced landing. A factor was the rising terrain.
- [NTSB NYC01LA098](https://openairdocs.org/ntsb/NYC01LA098.md): Fobes CGS Hawk Plus · West Middlesex, PA · Accident · Minor injuries · Limited investigation · Final report · Apr 8, 2001 · UNREG · Destroyed
  > The partial loss of engine power, for undetermined reasons. Factors included the headwinds on base leg, and the unsuitable terrain for a forced landing.
- [NTSB NYC00LA129](https://openairdocs.org/ntsb/NYC00LA129.md): Cessna 120 · Beaumont, PA · Accident · No injuries · Limited investigation · Final report · May 6, 2000 · N2842N · Substantial damage
  > A crack in the crankcase which resulted in a partial power loss.
- [NTSB NYC98FA179](https://openairdocs.org/ntsb/NYC98FA179.md): Smith, Ted Aerostar TS-600 · Marietta, PA · Accident · 1 fatal · Field investigation · Final report · Sep 5, 1998 · N600JB · Destroyed
  > The failure of the pilot to maintain airspeed during a precautionary landing which resulted in a loss of control while operating with one engine shutdown. An additional cause was the improper maintenance procedures that resulted in the #5 cylinder not being…
- [NTSB NYC98FA018](https://openairdocs.org/ntsb/NYC98FA018.md): Enstrom F-28C · Fairview, PA · Accident · No injuries · Field investigation · Final report · Oct 24, 1997 · N1944J · Substantial damage
  > inadequate maintenance, which led to detonation and a melted piston, and subsequent power loss.
- [NTSB NYC97LA128](https://openairdocs.org/ntsb/NYC97LA128.md): Mooney M20C · Bellwood, PA · Accident · Minor injuries · Limited investigation · Final report · Jun 24, 1997 · N6756N · Substantial damage
  > the total loss of engine power due to failed connecting rods.
- [NTSB IAD96LA105](https://openairdocs.org/ntsb/IAD96LA105.md): Piper PA-23-250 · Harrisburg, PA · Accident · Minor injuries · Limited investigation · Final report · Jul 7, 1996 · N6994Y · Destroyed
  > Failure of the right engine due to a fatigue fracture of the crankshaft resultant from heat cracks from an undetermined source.
- [NTSB NYC95LA229](https://openairdocs.org/ntsb/NYC95LA229.md): Piper PA-28-151 · Warminster, PA · Accident · No injuries · Limited investigation · Final report · Sep 29, 1995 · N33330 · Substantial damage
  > the pilot's improper positioning of the fuel selector which resulted in a total loss of engine power due to fuel starvation. A contributing factor was pilot distraction.
- [NTSB NYC95LA184](https://openairdocs.org/ntsb/NYC95LA184.md): Mooney M20C · Montgomery, PA · Accident · No injuries · Limited investigation · Final report · Aug 9, 1995 · N9216V · Substantial damage
  > The partial loss of engine power, as a result of an excessively rich fuel flow in the carburetor, and a subsequent forced landing. A factor relating to the accident was the malfunction of the landing gear.
- [NTSB BFO95LA003](https://openairdocs.org/ntsb/BFO95LA003.md): Piper PA-28-180 · Ebensburg, PA · Accident · Minor injuries · Limited investigation · Final report · Oct 10, 1994 · N8908J · Destroyed
  > The loss of partial engine power due to the failure of the right magneto's nylon gear on the rotating magnet and the low compression in the number three cylinder.
- [NTSB BFO94LA155](https://openairdocs.org/ntsb/BFO94LA155.md): Hughes 369D · Butler, PA · Accident · No injuries · Limited investigation · Final report · Aug 28, 1994 · N5027P · Substantial damage
  > The malfunction of the emergency fuel vent and the exhaustion of the fuel supply which resulted in the loss of engine power.
- [NTSB BFO93LA162](https://openairdocs.org/ntsb/BFO93LA162.md): Sterner Super CAT · Cherryville, PA · Accident · No injuries · Limited investigation · Final report · Sep 6, 1993 · N531SC · Substantial damage
  > The movement of a thumbscrew on the fuel filter system which resulted in fuel flow blockage and subsequent partial power loss. A factor in this accident was the lack of suitable terrain for the emergency landing.
- [NTSB NYC92LA127](https://openairdocs.org/ntsb/NYC92LA127.md): Piper PA-60-602P · Lancaster, PA · Accident · Serious injuries · Limited investigation · Final report · Jun 25, 1992 · N700MM · Destroyed
  > The failure of the left engine turbochargers bearings, which resulted in a loss of power and subsequent degradation of climb performance.
- [NTSB NYC92DHA03](https://openairdocs.org/ntsb/NYC92DHA03.md): Parrish, Paul SKY Bolt · Mehoopany, PA · Accident · Serious injuries · Final report · Jun 2, 1992 · N261P · Substantial damage
  > The pilot inadvertently stalled and spun the airplane at too low an altitude to allow recovery. Contributing to the accident was an engine vibration caused by a broken number 3 exhaust valve. The exhaust valve caused extensive internal damage to the engine.
- [NTSB NYC90LA064](https://openairdocs.org/ntsb/NYC90LA064.md): Mooney M20-K · Gibsonia, PA · Accident · No injuries · Limited investigation · Final report · Jan 31, 1990 · N1149G · Substantial damage
  > The collision with rods in the field as the pilot was attempting a forced landing after a complete engine failure.
- [NTSB NYC89FA029](https://openairdocs.org/ntsb/NYC89FA029.md): Ryan Navion A · Franklin, PA · Accident · 3 fatal · Field investigation · Final report · Nov 14, 1988 · N5164K · Destroyed
  > Due to improper grade of fuel in the airplane and bent and binding exhaust valves, the airplane engine had a partial loss of power during the takeoff ground run. The pilot did not abort the takeoff and the airplane stalled and collided with trees when the…
- [NTSB NYC88DGT01](https://openairdocs.org/ntsb/NYC88DGT01.md): North American F-51D · State College, PA · Accident · 1 fatal · Final report · Mar 7, 1988 · N51WE · Destroyed
  > N51WE, a North American F-51D took off as the second ship of a two ship flight with N6341T, another F-51D. They were observed climbing in formation into the clouds. N6341T assumed communications and said they were a flight of 2 and ok, after ATC was unable to…
- [NTSB NYC88LA017](https://openairdocs.org/ntsb/NYC88LA017.md): Piper J-4 · St. Paul, PA · Accident · Minor injuries · Limited investigation · Final report · Oct 25, 1987 · N28205 · Substantial damage
  > The flight was enroute from mount pleasant to winchester, Virginia on a heading of 140 degrees and at 4500 feet. About 25-30 minutes into the flight, engine power loss was experienced. The pilot switched from the auxilliary to the main fuel tank and applied…
- [NTSB NYC87LA033](https://openairdocs.org/ntsb/NYC87LA033.md): Cessna 33TC · Phillipsburg, PA · Accident · No injuries · Limited investigation · Final report · Nov 14, 1986 · N2581S · Substantial damage
  > The Cessna 337 experienced engine surging and plt made a precautionary landing at an airport while enroute to destination. The aircraft landed 200 ft short of the runway and received substantial damage while the two occupants were not injured. On scene…
- [NTSB NYC86FA213](https://openairdocs.org/ntsb/NYC86FA213.md): Piper PA-46-310P · West Mifflin, PA · Accident · 2 fatal · Field investigation · Final report · Aug 16, 1986 · N27EE · Destroyed
  > At 2232 EDT, the acft was climbing to 15000 feet when the pilot reported a low oil pressure light. ATC advised jimmy stewart field is about eleven thirty and 15 miles. After the pilot asked, 'is that a tower field?', ATC advised he did not know, westmoreland…
- [NTSB NYC86LA200](https://openairdocs.org/ntsb/NYC86LA200.md): Piper PA-38-112 · Grove City, PA · Accident · No injuries · Limited investigation · Final report · Aug 5, 1986 · N91356 · Substantial damage
  > The instructor plt (CFI) rprtd that shortly after takeoff, after climbing out of gnd effect, the acft seemed to lvl off & stop climbing. He took control fm the student & proceeded to check the instruments, but no specific abnormality was determined. He…
- [NTSB NYC85LA259](https://openairdocs.org/ntsb/NYC85LA259.md): Volksplane VP-1 · Sharpsville, PA · Accident · No injuries · Limited investigation · Final report · Sep 8, 1985 · N4354 · Substantial damage
  > The plt experienced a loss of eng RPM during cruise flt. He applied carb heat and lowered the nose of the acft in an attempt to regain eng RPM however, the eng continued to loose speed. The eng was below 2000 RPM and dropping when the plt elected to make a…
- [NTSB NYC85LA053](https://openairdocs.org/ntsb/NYC85LA053.md): Cessna C207 · North East, PA · Accident · No injuries · Limited investigation · Final report · Jan 8, 1985 · N91046 · Substantial damage
  > The acft was damaged during a forced landing in a grape vineyard. The plt stated that a ttl loss of pwr occurred during an apch to erie int'l arpt while passing through 3200 ft MSL. The plt performed emergency procedures and was able to regain partial pwr…
- [NTSB NYC84LA292](https://openairdocs.org/ntsb/NYC84LA292.md): Cessna 152II · Mercer, PA · Accident · Minor injuries · Limited investigation · Final report · Aug 21, 1984 · N5545L · Substantial damage
  > During takeoff from ballard field the engine lost partial power. The acft struck a power line during descent, abruptly losing airspeed, and then striking the ground. Post accident investigation revealed the engine spark plug gaps were too wide.
- [NTSB NYC84IA200](https://openairdocs.org/ntsb/NYC84IA200.md): Boeing 720-025 · Philadelphia, PA · Incident · No injuries · Incident investigation · Final report · Jun 5, 1984 · N8711E · No damage
  > While climbing thru 600 ft after takeoff, the crew heard a loud bang, the acft shuttered & the #3 eng fire warning light illuminated. A fire bottle was discharged. The coplt saw flames coming from the eng & the fire warning light remained illuminated, so a…
- [NTSB NYC84LA103](https://openairdocs.org/ntsb/NYC84LA103.md): Britten-Norman BN-2A-8 · Tobyhanna, PA · Accident · Serious injuries · Limited investigation · Final report · Mar 6, 1984 · N19WA · Substantial damage
  > The acft made a precautionary landing on a highway after both engines lost oil pressure. The plt feathered the right propeller because it gave abnormal indications before the left engine. The left engine was still operating at touchdown post accident…
- [NTSB NYC83FA207](https://openairdocs.org/ntsb/NYC83FA207.md): Cessna 310Q · Scranton, PA · Accident · 1 fatal · Field investigation · Final report · Aug 12, 1983 · N69JM · Destroyed
  > Shortly after takeoff the acft ws observed on radar making a left 360 deg turn. The plt did not respond to a call from the controller. A witness heard the plane 'sputtering' & observed it in erratic maneuvers prior to it hitting a house. Post exam revealed…
- [NTSB NYC82DA100](https://openairdocs.org/ntsb/NYC82DA100.md): Piper PA-38 · Punxsutawney, PA · Accident · No injuries · Final report · May 17, 1982 · N2363A · Substantial damage
  > While descending to confirm his position because of encountering rain on a cross country flight the student pilot discovered an engine RPM loss. After attempting to restore power several times an emergency landing was made into a plowed field during which the…

## 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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=352&state=PA

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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.
