# NTSB investigations: Pratt & Whitney R-985 series, MI

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 CHI99FA105](https://openairdocs.org/ntsb/CHI99FA105.md): Beech C-45G · Romulus, MI · Accident · 1 fatal · Field investigation · Final report · Mar 11, 1999 · N234L · Destroyed
  > the aircraft control not maintained and the inadvertent stall by the pilot while maneuvering to the landing area. The open door was a contributing factor.
- [NTSB CHI96LA243](https://openairdocs.org/ntsb/CHI96LA243.md): Beech C-45H · Marshall, MI · Accident · No injuries · Limited investigation · Final report · Jul 14, 1996 · N9772Z · Substantial damage
  > failure of the pilot to maintain directional control during the takeoff roll, which resulted in an inadvertent ground swerve. The crosswind (quartering headwind) was a related factor.
- [NTSB CHI95LA075](https://openairdocs.org/ntsb/CHI95LA075.md): Beech C45H · New Hudson, MI · Accident · No injuries · Limited investigation · Final report · Jan 24, 1995 · N618K · Substantial damage
  > The owner/pilot's inadequate maintenance practices which resulted in a loss of engine power shortly after takeoff and the pilot's inadequate emergency procedure after the power loss occurred. Related factors are trees, diminished airspeed and abrupt touchdown.
- [NTSB CHI94LA323](https://openairdocs.org/ntsb/CHI94LA323.md): Beech D18S · Mt Pleasant, MI · Accident · No injuries · Limited investigation · Final report · Sep 9, 1994 · N666S · Substantial damage
  > the improper fuel selector position by the pilot-in-command which resulted in fuel starvation. A factor was rough/uneven terrain.
- [NTSB CHI89LA088](https://openairdocs.org/ntsb/CHI89LA088.md): Avions Max Holste MH 1521 · Big Rapids, MI · Accident · No injuries · Limited investigation · Final report · May 14, 1989 · N163MH · Substantial damage
  > Inadequate compensation for wind conditions by the pilot and his failure to maintain directional control. The the variable/gusty/crosswind condition was considered to be a contributing factor.
- [NTSB CHI82FA001](https://openairdocs.org/ntsb/CHI82FA001.md): Beech D-18S · Fraser, MI · Accident · 1 fatal · Closed · Oct 4, 1981 · N6675 · Destroyed
- [NTSB CHI77FA070](https://openairdocs.org/ntsb/CHI77FA070.md): Beech C-45H · Ypsilanti, MI · Accident · Minor injuries · Closed · Aug 31, 1977 · N125TF · Destroyed
- [NTSB CHI76AC058](https://openairdocs.org/ntsb/CHI76AC058.md): Beech E18 · Kalamazoo, MI · Accident · No injuries · Closed · Apr 30, 1976 · N2510C · Substantial damage
- [NTSB CHI75AC065](https://openairdocs.org/ntsb/CHI75AC065.md): Beech H18 · Grayling, MI · Incident · No injuries · Closed · Mar 12, 1975 · N6000M · Minor damage
- [NTSB CHI75FEM27](https://openairdocs.org/ntsb/CHI75FEM27.md): Volpar H18 · Saginaw, MI · Accident · No injuries · Closed · Jan 31, 1975 · N958B · Substantial damage
- [NTSB CHI75AC052](https://openairdocs.org/ntsb/CHI75AC052.md): Beech C-45H · Detroit, MI · Accident · No injuries · Closed · Jan 15, 1975 · N45437 · Substantial damage
- [NTSB CHI75FEC04](https://openairdocs.org/ntsb/CHI75FEC04.md): Beech D18 · Utica, MI · Accident · No injuries · Closed · Jul 4, 1974 · N1111D · Substantial damage
- [NTSB CHI74AC099](https://openairdocs.org/ntsb/CHI74AC099.md): Beech D18S · Detroit, MI · Accident · 2 fatal · Closed · Jun 27, 1974 · N3616B · 2 aircraft · Substantial damage
- [NTSB CHI72AC080](https://openairdocs.org/ntsb/CHI72AC080.md): Beech D18S · Freeland, MI · Accident · No injuries · Closed · Apr 9, 1972 · N11DA · Substantial damage
- [NTSB CHI72FEC35](https://openairdocs.org/ntsb/CHI72FEC35.md): Beech D18S · Romulus, MI · Accident · No injuries · Closed · Apr 4, 1972 · CF-S1J · 2 aircraft · Substantial damage
- [NTSB CHI71IC058](https://openairdocs.org/ntsb/CHI71IC058.md): Beech TC-45J · Detroit, MI · Incident · No injuries · Closed · Feb 25, 1971 · N3787A · Minor damage
- [NTSB CHI71AC057](https://openairdocs.org/ntsb/CHI71AC057.md): Beech D18S · Pontiac, MI · Accident · No injuries · Closed · Feb 4, 1971 · N60004 · Substantial damage
- [NTSB CHI70AC094](https://openairdocs.org/ntsb/CHI70AC094.md): Beech D18S · Ypsilanti, MI · Accident · No injuries · Closed · Jun 25, 1970 · N80212 · Substantial damage
- [NTSB CHI71FBJ08](https://openairdocs.org/ntsb/CHI71FBJ08.md): Snow S2B · Gaylord, MI · Accident · No injuries · Closed · Jun 7, 1970 · N9414R · Substantial damage
- [NTSB CHI70F0176](https://openairdocs.org/ntsb/CHI70F0176.md): Beech C-45H · Jackson, MI · Accident · No injuries · Closed · Jul 23, 1969 · N9800H · Destroyed
- [NTSB CHI69A0078](https://openairdocs.org/ntsb/CHI69A0078.md): Beech D18S · Battle Creek, MI · Accident · No injuries · Closed · Mar 5, 1969 · N1444E · Substantial damage
- [NTSB CHI69D0455](https://openairdocs.org/ntsb/CHI69D0455.md): Beech E18S · Iron Mntn, MI · Accident · No injuries · Closed · Feb 6, 1969 · N5611D · Substantial damage
- [NTSB CHI68F0647](https://openairdocs.org/ntsb/CHI68F0647.md): Beech D18S · Detroit, MI · Accident · No injuries · Closed · Mar 25, 1968 · N3481B · Substantial damage
- [NTSB CHI68F0500](https://openairdocs.org/ntsb/CHI68F0500.md): Beech C-45 · Waterford, MI · Accident · No injuries · Closed · Dec 16, 1967 · N9800H · Substantial damage
- [NTSB CHI68F0090](https://openairdocs.org/ntsb/CHI68F0090.md): Beech C-18S · Niles, MI · Accident · No injuries · Closed · Jun 26, 1967 · N1065 · Substantial damage
- [NTSB CHI67F0287](https://openairdocs.org/ntsb/CHI67F0287.md): Beech D18S · Muskegon, MI · Accident · No injuries · Closed · Oct 13, 1966 · N86K · Substantial damage
- [NTSB CHI67F0203](https://openairdocs.org/ntsb/CHI67F0203.md): Beech D18 · Romulus, MI · Accident · No injuries · Closed · Aug 6, 1966 · N646B · Substantial damage
- [NTSB CHI66F0551](https://openairdocs.org/ntsb/CHI66F0551.md): Beechcraft E-18S · Negaune, MI · Accident · No injuries · Closed · Feb 6, 1966 · N5632D · Substantial damage
- [NTSB CHI66F0033](https://openairdocs.org/ntsb/CHI66F0033.md): Beechcraft C-18S · Jackson, MI · Accident · No injuries · Closed · Jun 10, 1965 · N44569 · Substantial damage
- [NTSB CHI65F0165](https://openairdocs.org/ntsb/CHI65F0165.md): Howard DGA-15 · Almont, MI · Accident · No injuries · Closed · May 8, 1965 · N1335M · 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" = 'MI' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52008'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52008&state=MI

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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.