# NTSB investigations: Piper PA-25-235, CO

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 CEN14LA261](https://openairdocs.org/ntsb/CEN14LA261.md): Piper PA-25-235 · Boulder, CO · Accident · Minor injuries · Limited investigation · Final report · May 28, 2014 · N8808L · Substantial damage
  > The pilot's failure to adequately monitor the airplane's actual fuel consumption rate, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB CEN14FA230](https://openairdocs.org/ntsb/CEN14FA230.md): Piper PA 25-235 · Northglenn, CO · Accident · No injuries · Field investigation · Final report · May 5, 2014 · N4519Y · Destroyed
  > The pilot's decision to operate the banner-tow flight below the minimum safe altitude specified by federal regulation, which likely limited his ability to recover from a potential loss of airspeed due to a gusting wind condition. Also causal was the pilot’s…
- [NTSB CEN10FA115](https://openairdocs.org/ntsb/CEN10FA115.md): Piper PA-25-235 · Boulder, CO · Accident · 3 fatal · Field investigation · Final report · Feb 6, 2010 · N8718L · 3 aircraft · Substantial damage
  > The failure of both pilots to see and avoid the other resulting in a midair collision. Contributing to the accident was the lack of perceived visual relative motion of the Piper and the Cirrus to the pilot of each airplane, the terrain background, and the…
- [NTSB DEN04CA073](https://openairdocs.org/ntsb/DEN04CA073.md): Piper PA-25-235 · Flagler, CO · Accident · No injuries · Data collection · Final report · May 22, 2004 · N8586L · Substantial damage
  > the pilot's improper in-flight planning/decision which led to fuel exhaustion and subsequent loss of engine power. Factors contributing to the accident were the low altitude, low airspeed, and the inoperative fuel quantity gauge.
- [NTSB DEN02LA096](https://openairdocs.org/ntsb/DEN02LA096.md): Piper PA-25-235 · Boulder, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 16, 2002 · N9791P · Destroyed
  > the pilot's inadequate preflight preparation, which resulted in fuel exhaustion and a subsequent loss of engine power, and his failure to maintain adequate airspeed during the forced landing, which resulted in an inadvertent stall/mush. Factors included the…
- [NTSB FTW97LA202](https://openairdocs.org/ntsb/FTW97LA202.md): Piper PA-25-235 · Lamar, CO · Accident · No injuries · Limited investigation · Final report · May 27, 1997 · N4829Y · Substantial damage
  > Failure of the left magneto and crank shaft idler drive gears. Factors were failure to perform a 100 hour inspection and unsuitable terrain for a forced landing.
- [NTSB FTW95LA304](https://openairdocs.org/ntsb/FTW95LA304.md): Piper PA-25-235 · Stratton, CO · Accident · No injuries · Limited investigation · Final report · Jul 15, 1995 · N9801P · Destroyed
  > The pilot's excessive rate of descent as he initiated the swath run and operation of the aircraft over the maximum allowable gross weight.
- [NTSB DEN92LA080](https://openairdocs.org/ntsb/DEN92LA080.md): Piper PA-25-235 · Karval, CO · Accident · No injuries · Limited investigation · Final report · Aug 3, 1992 · N8635L · Destroyed
  > An engine failure due to improper maintenance installation. A factor was: lack of suitable terrain for the forced landing.
- [NTSB DEN90DTE08](https://openairdocs.org/ntsb/DEN90DTE08.md): Piper PA-25-235 · Idalia, CO · Accident · No injuries · Final report · Sep 11, 1990 · N9571P · Substantial damage
  > The encounter with an unfavorable wind, a dust devil. A factor was the inability of the pilot to maintain directional control.
- [NTSB DEN88DTE05](https://openairdocs.org/ntsb/DEN88DTE05.md): Piper PA-25-235 · Limon, CO · Accident · No injuries · Final report · Jun 7, 1988 · N8678L · Substantial damage
  > The plt reported that he was making his third swathrun when the eng quit. He attempted a forced landing but the acft nosed over. The plt said he had 15 gal of fuel on board at takeoff and had been airborne about 15 min. The FAA a/w insp who examined the…
- [NTSB DEN88DTE03](https://openairdocs.org/ntsb/DEN88DTE03.md): Piper PA-25-235 · Akron, CO · Accident · No injuries · Final report · Apr 25, 1988 · N9569P · Substantial damage
  > The pilot said the wind was from 200 degrees at 10 KTS, as he began his takeoff on runway 13. When the aircraft reached 20-30 feet AGL it began to sink and collided with the ground. The pilot said he thought he encountered a wind shear or change of wind…
- [NTSB DEN87DTE05](https://openairdocs.org/ntsb/DEN87DTE05.md): Piper PA-25-235 · Center, CO · Accident · No injuries · Final report · Sep 4, 1987 · N6796Z · Destroyed
  > The plt reported that the eng lost power while the acft was en route to spray a field. There was no suitable terrain for a forced landing and the plt landed the aircraft in a soft, cultivated field and nosed over. Examination of the eng revealed burned and…
- [NTSB DEN87LA093](https://openairdocs.org/ntsb/DEN87LA093.md): Piper PA-25-235 · Idalia, CO · Accident · No injuries · Limited investigation · Final report · Apr 10, 1987 · N4765Y · Substantial damage
  > An ag plt was attempting a takeoff on a dirt road for an aerial application flt. The wind was from the northwest and the acft was aligned to the south. During the takeoff ground run a gust from the rear lifted the acft. The acft departed the road to the left,…
- [NTSB DEN86LA171](https://openairdocs.org/ntsb/DEN86LA171.md): Piper PA-25-235 · Cope, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 22, 1986 · N7723Z · Substantial damage
  > The plt reports that the eng quit during a pull-up at the end of a swath run. A forced landing in a field straight ahead was attempted but the field had been cultivated recently and was soft. After a short ground roll the gear dug in and the acft nosed over.…
- [NTSB DEN86FA022](https://openairdocs.org/ntsb/DEN86FA022.md): Piper PA-25-235B · Holly, CO · Accident · 1 fatal · Field investigation · Final report · Nov 13, 1985 · N7313Z · Substantial damage
  > According to the plt's brother, he was on a flt to calibrate the acft's spraying equipment & to make a few practice crop spraying runs. While flying at aprx 30 ft AGL, the acft struck power lines, then crashed to the ground & burned. No preimpact part failure…
- [NTSB DEN84FA219](https://openairdocs.org/ntsb/DEN84FA219.md): Piper PA-25-235 · Peetz, CO · Accident · 1 fatal · Field investigation · Final report · Jul 12, 1984 · N6484Z · Destroyed
  > Plt had completed spraying around farm buildings for insect control. On first pass in crop area, the acft was observed to pull up over pwr lines at end of swath run but collided with overhead ground wire at top of multi- wire array. Acft then collided with…
- [NTSB DEN83FTE12](https://openairdocs.org/ntsb/DEN83FTE12.md): Piper PA-25-260 · Lamar, CO · Accident · Serious injuries · Final report · Aug 31, 1983 · N7606Z · Substantial damage
  > The acft collided with the ground during an aerial application maneuver. The pilot stated that he finished the second spray run and while in a turn the acft hit the ground on flat terrain. The pilot stated that he did not remember anymoreabout the flt. A fuel…
- [NTSB DEN80FTE58](https://openairdocs.org/ntsb/DEN80FTE58.md): Piper PA-25 · Meeker, CO · Accident · 1 fatal · Closed · Jun 21, 1980 · N7660Z · Destroyed
- [NTSB DEN79FTE53](https://openairdocs.org/ntsb/DEN79FTE53.md): Piper PA-25 · Center, CO · Accident · Minor injuries · Closed · Jun 24, 1979 · N7591Z · Destroyed
- [NTSB DEN79DTE43](https://openairdocs.org/ntsb/DEN79DTE43.md): Piper PA-25 · Eads, CO · Accident · No injuries · Closed · Jun 12, 1979 · N6496Z · Substantial damage
- [NTSB DEN78DTE88](https://openairdocs.org/ntsb/DEN78DTE88.md): Piper PA-25 · Center, CO · Accident · No injuries · Closed · Aug 20, 1978 · N5KL · Substantial damage
- [NTSB DEN76FTE01](https://openairdocs.org/ntsb/DEN76FTE01.md): Piper PA-25 · Wray, CO · Accident · Minor injuries · Closed · Jul 4, 1975 · N4367Y · Substantial damage
- [NTSB DEN7KFTE75](https://openairdocs.org/ntsb/DEN7KFTE75.md): Piper PA-25 · Craig, CO · Accident · No injuries · Closed · Jun 16, 1975 · N6758Z · Destroyed
- [NTSB DEN74DTE86](https://openairdocs.org/ntsb/DEN74DTE86.md): Piper PA-25 · Center, CO · Accident · No injuries · Closed · May 10, 1974 · N5KL · Substantial damage
- [NTSB DEN73DTE68](https://openairdocs.org/ntsb/DEN73DTE68.md): Piper PA-25 · Center, CO · Accident · No injuries · Closed · Apr 14, 1973 · N5KL · Substantial damage
- [NTSB DEN73DTE22](https://openairdocs.org/ntsb/DEN73DTE22.md): Piper PA-25 · Eckley, CO · Accident · No injuries · Closed · Aug 22, 1972 · N7705Z · Substantial damage
- [NTSB DEN73DTE12](https://openairdocs.org/ntsb/DEN73DTE12.md): Piper PA-25 · Rocky Ford, CO · Accident · No injuries · Closed · Aug 2, 1972 · N8825L · Substantial damage
- [NTSB DEN73FTE02](https://openairdocs.org/ntsb/DEN73FTE02.md): Piper PA-25 · Mead, CO · Accident · No injuries · Closed · Jul 7, 1972 · N4999Y · Substantial damage
- [NTSB DEN72FTE79](https://openairdocs.org/ntsb/DEN72FTE79.md): Piper PA-25 · Kit Carson, CO · Accident · Minor injuries · Closed · Jun 26, 1972 · N7746Z · Substantial damage
- [NTSB DEN72FTE65](https://openairdocs.org/ntsb/DEN72FTE65.md): Piper PA-25 · Merino, CO · Accident · No injuries · Closed · Apr 5, 1972 · N7712Z · Substantial damage
- [NTSB DEN72DTE08](https://openairdocs.org/ntsb/DEN72DTE08.md): Piper PA-25 · Blanca, CO · Accident · No injuries · Closed · Aug 6, 1971 · N7191Z · Substantial damage
- [NTSB DEN71DTE12](https://openairdocs.org/ntsb/DEN71DTE12.md): Piper PA-25 · Breen, CO · Accident · No injuries · Closed · Jun 11, 1971 · N6629Z · Substantial damage
- [NTSB DEN69F0097](https://openairdocs.org/ntsb/DEN69F0097.md): Piper PA-25 · Alamosa, CO · Accident · Serious injuries · Closed · Aug 4, 1968 · N6821Z · Destroyed
- [NTSB DEN69D0058](https://openairdocs.org/ntsb/DEN69D0058.md): Piper PA-25 · Wellington, CO · Accident · No injuries · Closed · May 17, 1968 · N7440Z · Substantial damage
- [NTSB DEN67D0061](https://openairdocs.org/ntsb/DEN67D0061.md): Piper PA-25 · Montrose, CO · Accident · No injuries · Closed · Jun 15, 1966 · N6568Z · Substantial damage
- [NTSB DEN66F0346](https://openairdocs.org/ntsb/DEN66F0346.md): Piper PA25 · Haswell, CO · Accident · No injuries · Closed · Apr 26, 1966 · N7319Z · Substantial damage

## 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" = 'CO' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7102504'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7102504&state=CO

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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.