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

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 CEN12FA534](https://openairdocs.org/ntsb/CEN12FA534.md): Beech G18 - S · Taylorville, IL · Accident · 1 fatal · Field investigation · Final report · Aug 11, 2012 · N697Q · Substantial damage
  > The pilot's failure to maintain adequate airspeed and use the appropriate flaps setting during sport-parachuting operations, which resulted in an aerodynamic stall/spin and a subsequent loss of control. Contributing to the accident was the pilot’s failure to…
- [NTSB CHI08CA231](https://openairdocs.org/ntsb/CHI08CA231.md): Weatherly 201B · Creston, IL · Accident · No injuries · Data collection · Final report · Aug 1, 2008 · N2936W · Substantial damage
  > The pilot's selection of the unsuitable terrain next to the runway to avoid the landing traffic. Contributing to the accident was the hill in the middle of the runway that blocked the pilot's view of the other traffic and the high vegetation near the runway.
- [NTSB CHI05CA256](https://openairdocs.org/ntsb/CHI05CA256.md): Boeing A75N1 · Ellisville, IL · Accident · No injuries · Data collection · Final report · Sep 7, 2005 · N52551 · Substantial damage
  > The loss of engine power due to the failure of the number four connecting rod. A factor to the accident was the soybean crop.
- [NTSB CHI04LA217](https://openairdocs.org/ntsb/CHI04LA217.md): Grumman G-164-B · Bradford, IL · Accident · No injuries · Limited investigation · Final report · Aug 6, 2004 · N6677Q · Substantial damage
  > The pilot's misjudgment of speed and distance, and his failure to perform a go-around. Additional factors were the wet runway and the ditch.
- [NTSB CHI02LA213](https://openairdocs.org/ntsb/CHI02LA213.md): Weatherly 201C · Malta, IL · Accident · No injuries · Limited investigation · Final report · Jul 24, 2002 · N1296W · Substantial damage
  > The inflight fire and loss of engine power due to undetermined reasons. Factors associated with the accident were the lack of suitable terrain on which to land and the corn crop which was contacted during the landing.
- [NTSB CHI02CA194](https://openairdocs.org/ntsb/CHI02CA194.md): Grumman G-164 · Browning, IL · Accident · No injuries · Data collection · Final report · Jul 17, 2002 · N623U · Substantial damage
  > the failure of the pilot-in-command to maintain sufficient airspeed while maneuvering. The initial stages of a stall/mush condition, and the low maneuvering altitude due to the agricultural application pass, were contributing factors.
- [NTSB CHI01LA164](https://openairdocs.org/ntsb/CHI01LA164.md): Boeing Stearman A-75 · Marissa, IL · Accident · No injuries · Limited investigation · Final report · Jun 8, 2001 · N4558N · Substantial damage
  > The pilot's manuever to avoid obstructions and his failure to abort takeoff. The pilot's failure to establish adequate climb, and the transmission wire are contributing factors.
- [NTSB CHI00LA203](https://openairdocs.org/ntsb/CHI00LA203.md): Weatherly 201B · Streator, IL · Accident · No injuries · Limited investigation · Final report · Jul 16, 2000 · N1261W · Substantial damage
  > the pilot's preflight planning was inadequate which resulted in taking off in the wrong direction on the runway. Factors associated with the accident were the tailwind condition and the crop that the airplane contacted.
- [NTSB CHI97LA211](https://openairdocs.org/ntsb/CHI97LA211.md): Waco UPF-7 · Springfield, IL · Accident · No injuries · Limited investigation · Final report · Jul 12, 1997 · N30136 · Substantial damage
  > failure of the pilot to maintain safe altitude/clearance from the terrain. Factors relating to this accident were: the hazy weather condition, the resultant difficulty in keeping the other airplane in sight, and the pilot's diverted attention, while looking…
- [NTSB CHI96LA310](https://openairdocs.org/ntsb/CHI96LA310.md): Grumman G-164A · Galesburg, IL · Accident · Minor injuries · Limited investigation · Final report · Aug 20, 1996 · N904X · Substantial damage
  > failure of the pilot to maintain clearance from trees that protruded into the field that he was spraying.
- [NTSB DCA92MA048](https://openairdocs.org/ntsb/DCA92MA048.md): Beech C-45H · Hinckley, IL · Accident · 12 fatal · Major investigation · Final report · Sep 7, 1992 · N3657G · Destroyed
  > Inadequate maintenance and inspection by the operator which resulted in an engine power loss during the critical takeoff phase of flight. In addition, the pilot did not, or was unable to, attain a full-feather position on the left engine propeller, which…
- [NTSB CHI92DEE04](https://openairdocs.org/ntsb/CHI92DEE04.md): Weatherly 201B · Chana, IL · Accident · No injuries · Final report · Sep 5, 1992 · N2935W · Substantial damage
  > Fracture of a connecting rod resulting in loss of engine power.
- [NTSB CHI90LA256](https://openairdocs.org/ntsb/CHI90LA256.md): Boeing B75N1 · Marseilles, IL · Accident · Serious injuries · Limited investigation · Final report · Sep 5, 1990 · N62438 · Substantial damage
  > The pilot-in-command's failure to maintain adequate visual outlook to avoid collision with a wire while conducting intentional low level flight.
- [NTSB CHI90DEV04](https://openairdocs.org/ntsb/CHI90DEV04.md): Grumman G-164B · Princeton, IL · Accident · No injuries · Final report · May 18, 1990 · N6695Q · Substantial damage
  > The pilot-in-command's failure to maintain adequate clearance from obstacles during flight at low altitude, resulting in wire strike.
- [NTSB CHI88DEV04](https://openairdocs.org/ntsb/CHI88DEV04.md): Grumman G164A · Chenoa, IL · Accident · No injuries · Final report · Aug 3, 1988 · N8980H · Substantial damage
  > Unavailability of suitable terrain on which to accomplish a forced landing.
- [NTSB CHI87FA219](https://openairdocs.org/ntsb/CHI87FA219.md): Beech H-18 · Rockford, IL · Accident · 1 fatal · Field investigation · Final report · Sep 22, 1987 · N5850S · Destroyed
  > The commercial pilot was on a repositioning flight from kenosha, Wisconsin to atlanta, Georgia, after having been without sleep for about 20 hours. Witnesses observed the aircraft circling a subdivision near Rockford, Illinois at a low altitude, just above…
- [NTSB CHI84LA182](https://openairdocs.org/ntsb/CHI84LA182.md): Beech E18S · Marion, IL · Accident · Minor injuries · Limited investigation · Final report · May 11, 1984 · N561S · Destroyed
  > The acft crashed after takeoff from rwy 29 at williamson county airport. The plt stated that she mismanaged the fuel system & that she 'probably tookoff on fumes.' She further stated that she should have told the company 'I'm to tired to make this flt.'
- [NTSB CHI83LA421](https://openairdocs.org/ntsb/CHI83LA421.md): Boeing B75N1 · Galesburg, IL · Accident · No injuries · Limited investigation · Final report · Sep 7, 1983 · N62438 · Substantial damage
  > The plt stated that when he was landing on rwy 20 with a x-wind, it switched to a rear quartering wind. At about that time, the acft went off the rwy & struck a rwy marker with its tailwheel. The acft then ground looped, damaging the lower left wing.
- [NTSB CHI83LA270](https://openairdocs.org/ntsb/CHI83LA270.md): Grumman G-164A · Paris, IL · Accident · No injuries · Limited investigation · Final report · Jun 20, 1983 · N952X · 2 aircraft · Substantial damage
  > The plt of the Grumman G-164A, N952X, reported that after the acft was loaded & fueled, he started to taxi northbound on a taxiway from the ramp to the rwy. At about the same time, a student plt in a Cessna 152, N67449, had landed on the rwy & turned…
- [NTSB CHI81DEV32](https://openairdocs.org/ntsb/CHI81DEV32.md): Grumman G-164A · Hudson, IL · Accident · No injuries · Closed · Aug 14, 1981 · N8638H · Substantial damage
- [NTSB CHI81DA018](https://openairdocs.org/ntsb/CHI81DA018.md): Beech H18S · Chicago, IL · Case · Closed · Jan 9, 1981 · N135W
- [NTSB CHI78FEE11](https://openairdocs.org/ntsb/CHI78FEE11.md): Beech E18S · Chicago, IL · Accident · No injuries · Closed · Dec 17, 1977 · N3131W · Substantial damage
- [NTSB CHI77DEE48](https://openairdocs.org/ntsb/CHI77DEE48.md): Grumman G-164A · Sterling, IL · Accident · No injuries · Closed · Sep 1, 1977 · N6658 · Substantial damage
- [NTSB CHI77FEE04](https://openairdocs.org/ntsb/CHI77FEE04.md): Beech E18S · W Chicago, IL · Accident · No injuries · Closed · Oct 26, 1976 · N70DG · Substantial damage
- [NTSB CHI75FEES9|CHI75FEE59](https://openairdocs.org/ntsb/CHI75FEES9%7CCHI75FEE59.md): Beech A36 · Rockford, IL · Accident · No injuries · Closed · May 1, 1975 · N3116W · 2 aircraft · Substantial damage
- [NTSB CHI75AC063](https://openairdocs.org/ntsb/CHI75AC063.md): Beech D18S · Chicago, IL · Accident · No injuries · Closed · Mar 8, 1975 · N765D · Substantial damage
- [NTSB CHI74AC039](https://openairdocs.org/ntsb/CHI74AC039.md): Beech E18E · Chicago, IL · Accident · No injuries · Closed · Nov 1, 1973 · N251K · Substantial damage
- [NTSB CHI74FEV14](https://openairdocs.org/ntsb/CHI74FEV14.md): Boeing A75N1 · Martinsville, IL · Accident · Minor injuries · Closed · Aug 18, 1973 · N61860 · Substantial damage
- [NTSB CHI74FEV03](https://openairdocs.org/ntsb/CHI74FEV03.md): Grumman G-164A · Shirley, IL · Accident · No injuries · Closed · Jul 18, 1973 · N649U · Substantial damage
- [NTSB CHI73AC094](https://openairdocs.org/ntsb/CHI73AC094.md): Beech E18S · Chicago, IL · Accident · No injuries · Closed · Jun 7, 1973 · N250RP · Substantial damage
- [NTSB CHI73ACO37](https://openairdocs.org/ntsb/CHI73ACO37.md): Beech SNB-5 · Chicago, IL · Accident · No injuries · Closed · Oct 5, 1972 · N3787A · Substantial damage
- [NTSB CHI72AC086](https://openairdocs.org/ntsb/CHI72AC086.md): Beech C-45G · Chicago, IL · Accident · No injuries · Closed · May 2, 1972 · N3666G · Substantial damage
- [NTSB CHI72FEE51](https://openairdocs.org/ntsb/CHI72FEE51.md): Beech 18 · Chicago, IL · Accident · No injuries · Closed · Dec 24, 1971 · N588K · Substantial damage
- [NTSB CHI71FBQ08](https://openairdocs.org/ntsb/CHI71FBQ08.md): Beech G18S · Springfield, IL · Accident · No injuries · Closed · Aug 19, 1970 · N188X · Substantial damage
- [NTSB CHI71IC006](https://openairdocs.org/ntsb/CHI71IC006.md): Beech E18S · Rockford, IL · Incident · No injuries · Closed · Jul 19, 1970 · N279SC · Minor damage
- [NTSB CHI70FBQ18](https://openairdocs.org/ntsb/CHI70FBQ18.md): Boeing A75 · Percy, IL · Accident · Serious injuries · Closed · May 26, 1970 · N49954 · Substantial damage
- [NTSB CHI70FBD24](https://openairdocs.org/ntsb/CHI70FBD24-201175.md): Beech C-45H · Rockford, IL · Accident · No injuries · Closed · Apr 20, 1970 · N256RA · Substantial damage
- [NTSB CHI70FBQ02](https://openairdocs.org/ntsb/CHI70FBQ02.md): Beech D18S · Springfield, IL · Accident · No injuries · Closed · Jan 21, 1970 · N279AG · Substantial damage
- [NTSB CHI70F0288](https://openairdocs.org/ntsb/CHI70F0288.md): Spartan 7W · Joliet, IL · Accident · No injuries · Closed · Aug 28, 1969 · N34SE · Substantial damage
- [NTSB CHI70F0240](https://openairdocs.org/ntsb/CHI70F0240.md): Grumman G-164 · Mclean, IL · Accident · No injuries · Closed · Aug 11, 1969 · N11983 · Substantial damage
- [NTSB CHI69F0133](https://openairdocs.org/ntsb/CHI69F0133.md): Boeing A75 · Minonk, IL · Accident · Minor injuries · Closed · Jul 26, 1968 · N49954 · Substantial damage
- [NTSB CHI67F0510](https://openairdocs.org/ntsb/CHI67F0510.md): Beech E18S · Chicago, IL · Accident · No injuries · Closed · Mar 14, 1967 · N21U · Substantial damage
- [NTSB CHI66F0565](https://openairdocs.org/ntsb/CHI66F0565.md): Beechcraft E18S · Chicago, IL · Accident · No injuries · Closed · Jan 3, 1966 · N426SF · Substantial damage
- [NTSB CHI65F0201](https://openairdocs.org/ntsb/CHI65F0201.md): Beechcraft AT-11 · Chicago, IL · Accident · No injuries · Closed · May 19, 1965 · N107RS · Substantial damage
- [NTSB CHI65F0022](https://openairdocs.org/ntsb/CHI65F0022.md): Beechraft AT11 · Wheeling, IL · Accident · No injuries · Closed · Jan 9, 1965 · N107RS · Substantial damage
- [NTSB UNK65X1090](https://openairdocs.org/ntsb/UNK65X1090.md): Howard DGA-15 · West Chicago, IL · Accident · No injuries · Closed · Dec 22, 1964 · N75599 · Substantial damage
- [NTSB UNK64X2703](https://openairdocs.org/ntsb/UNK64X2703.md): Beechcraft 17 · Lake Villa, IL · Accident · No injuries · Closed · Jul 7, 1964 · N1178V · 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" = 'IL' 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=IL

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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.