# NTSB investigations, MD: 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 NYC00LA198](https://openairdocs.org/ntsb/NYC00LA198.md): Warrington Surrel Guppy · Churchville, MD · Accident · Serious injuries · Limited investigation · Final report · Jul 16, 2000 · N4425W · Substantial damage
  > The pilot's failure to maintain airspeed which resulted in an inadvertent stall. Factors in this accident were an open canopy and a decrease in engine power.
- [NTSB NYC00LA008](https://openairdocs.org/ntsb/NYC00LA008.md): Piper PA-28R-200 · Berlin, MD · Accident · Serious injuries · Limited investigation · Final report · Oct 8, 1999 · N56094 · Substantial damage
  > The failure of the number 3-cylinder exhaust valve stem due to fatigue cracking.
- [NTSB NYC97LA149](https://openairdocs.org/ntsb/NYC97LA149.md): Piper PA-25-235 · Preston, MD · Accident · No injuries · Limited investigation · Final report · May 29, 1997 · N4497Y · Substantial damage
  > The pilot's improper flare during a precautionary landing, which resulted in a hard landing. A factor in the accident was the failure of the left magneto, which resulted in a partial loss of engine power.
- [NTSB BFO93FA063](https://openairdocs.org/ntsb/BFO93FA063.md): Piper PA-28-140 · Edgewater, MD · Accident · 1 fatal · Field investigation · Final report · Apr 17, 1993 · N56430 · Destroyed
  > The pilot's improper in-flight planning/decision after selecting the wrong runway for a precautionary landing, which resulted in an inadvertent descent into transmission lines, while attempting to maneuver back to the runway. Factors related to the accident…
- [NTSB BFO92FA058](https://openairdocs.org/ntsb/BFO92FA058.md): Cessna 177 · Lusby, MD · Accident · 3 fatal · Field investigation · Final report · May 10, 1992 · N177RD · Destroyed
  > A failure of the carburetor resulting in a loss of engine power.
- [NTSB BFO91LA033](https://openairdocs.org/ntsb/BFO91LA033.md): Cessna 172 · Hagerstown, MD · Accident · No injuries · Limited investigation · Final report · Mar 22, 1991 · N5241D · Substantial damage
  > Worn camshaft lobes which resulted in the loss of engine power.
- [NTSB BFO91LA030](https://openairdocs.org/ntsb/BFO91LA030.md): Piper PA-24-250 · Hagerstown, MD · Accident · Serious injuries · Limited investigation · Final report · Mar 7, 1991 · N6699P · Substantial damage
  > The failure of the throttle control cable. A factor ws the rough terrain.
- [NTSB BFO90FA008](https://openairdocs.org/ntsb/BFO90FA008.md): Piper PA-28-181 · Laurel, MD · Accident · No injuries · Field investigation · Final report · Nov 5, 1989 · N47759 · Substantial damage
  > Lost of engine power caused by material failure of the number three cylinder exhaust valve. The failure was attributed to excessive temperature.
- [NTSB BFO87MA007](https://openairdocs.org/ntsb/BFO87MA007.md): Beech 65-A80 · Baltimore, MD · Accident · 1 fatal · Major investigation · Final report · Nov 8, 1986 · N304D · Destroyed
  > Drg clb after tkof, l eng seized. Plt said he atmtd 1 eng restart; prop would not rotate or feather. No emerg declared. Plt stated eng shut-dwn proc was used, scientific bus sws were shut off, r gen was recycled & appeared to oper normally. Plts got imt…
- [NTSB BFO86LA040](https://openairdocs.org/ntsb/BFO86LA040.md): Cessna 172L · Aberdeen, MD · Accident · No injuries · Limited investigation · Final report · Jul 16, 1986 · N3933Q · Destroyed
  > The plt stated that the eng began to run rough during flt, then all at once, it started vibrating excessively. He attempted to land at the phillips aaf, but the arpt was closed & the rwy lights were not illuminated. By the time he saw the rwy, the acft was…
- [NTSB ATL82DA106](https://openairdocs.org/ntsb/ATL82DA106.md): Beech B19 · College Park, MD · Accident · Minor injuries · Final report · Apr 17, 1982 · N1932W · Substantial damage
  > During the preflight the pilot noted the engine ran rough on the right magneto then smoothed out. The pilot departed the runway with the stall warning horn sounding and began a turn into the wind; however, due to buildings in his path he turned 360 degrees.…

## 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" = 'MD' 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=MD

---
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.