# NTSB investigations: Lycoming IO-540 series, 1990

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 ANC91LA015](https://openairdocs.org/ntsb/ANC91LA015.md): Piper PA-32 · Kongikank, AK · Accident · No injuries · Limited investigation · Final report · Dec 11, 1990 · N8225J · Substantial damage
  > The pilot in command's failure to maintain airspeed during approach resulting in an inadverrtent stall annd uncontrolled descent into the ground.
- [NTSB CHI91FA031](https://openairdocs.org/ntsb/CHI91FA031.md): Piper PA-32-RT300 · Gaylord, MI · Accident · 4 fatal · Field investigation · Final report · Nov 22, 1990 · N9800K · Destroyed
  > The pilot's failure to maintain adequate terrain clearance. Factors which contributed to the accident were: the dark night, adverse weather conditions, and the pilot's overconfidence in continuing VFR flight into these conditions.
- [NTSB BFO91LA015](https://openairdocs.org/ntsb/BFO91LA015.md): Piper PA-23-250 · Milton, KY · Accident · No injuries · Limited investigation · Final report · Nov 16, 1990 · N6996A · Substantial damage
  > The in-flight failure of both engines due to the pilot's mismanagement of the fuel system.
- [NTSB NYC90FA215](https://openairdocs.org/ntsb/NYC90FA215.md): Piper PA-32RT-300 · Montgomery, NY · Accident · 4 fatal · Field investigation · Final report · Sep 8, 1990 · N9327C · Destroyed
  > An inadequate preflight by the pilot which resulted in a power loss due to fuel exhaustion.
- [NTSB CHI90DCQ01](https://openairdocs.org/ntsb/CHI90DCQ01.md): Piper PA 36-300 · Mingo, KS · Accident · Minor injuries · Final report · Aug 31, 1990 · N2329Y · Substantial damage
  > Inadequate airspeed resulting in a stall/mush being encountered by the PIC. Contributing factors were a tailwind and a load jettison not performed.
- [NTSB MIA90LA173](https://openairdocs.org/ntsb/MIA90LA173.md): Piper PA-32RT-300 · Hattiesburg, MS · Accident · No injuries · Limited investigation · Final report · Aug 24, 1990 · N289PC · Substantial damage
  > Failure of the pilot in command to attain adequate airspeed prior to liftoff during an attempted takeoff. The pilot then lost control of the airplane in flight. The pilot also delayed in his decision to abort the takeoff.
- [NTSB SEA90LA147](https://openairdocs.org/ntsb/SEA90LA147.md): Lake LA-250 · Rawlins, WY · Accident · Minor injuries · Limited investigation · Final report · Jul 27, 1990 · N14004 · Substantial damage
  > Pilot's improper planning/decision, and his misjudgement of the aircraft's climb capability in conditions of high density altitude and unanticipated atmospheric conditions. The high density altitude and rising terrain were related factors.
- [NTSB CHI90LA195](https://openairdocs.org/ntsb/CHI90LA195.md): Maule M-5-235C · East Tawas, MI · Accident · No injuries · Limited investigation · Final report · Jul 24, 1990 · N6VD · Substantial damage
  > The private pilot's failure to maintain adequate control of the aircraft after touchdown.
- [NTSB LAX90DVG12](https://openairdocs.org/ntsb/LAX90DVG12.md): E.J. Novotny Steen Skybolt · Fall River Mill, CA · Accident · Serious injuries · Final report · Jul 20, 1990 · N78EJ · Substantial damage
  > Loss of power for undetermined reasons.
- [NTSB SEA90LA120](https://openairdocs.org/ntsb/SEA90LA120.md): Piper PA-32R · Island Park, ID · Accident · No injuries · Limited investigation · Final report · Jul 3, 1990 · N38575 · Substantial damage
  > Pilot's failure to maintain directional control, while attempting a soft-field takeoff. The crosswind was a related factor.
- [NTSB LAX90DUA01](https://openairdocs.org/ntsb/LAX90DUA01.md): Homebuilt JP-350-1 · Torrance, CA · Accident · Minor injuries · Final report · Jun 28, 1990 · N350JP · Substantial damage
  > The aircraft collision with the ground after the pilot experienced a loss of engine thrust due to propeller overspeed condition. Contributing to the accident was the pilot's improper servicing of the propeller hub that allowed the overspeed to occur.
- [NTSB MKC90LA112](https://openairdocs.org/ntsb/MKC90LA112.md): Piper PA-32-300 · Little Rock, AR · Accident · No injuries · Limited investigation · Final report · May 23, 1990 · N301KK · Substantial damage
  > The failure of the powerplant due to a sheared timing gear. Contributing factors were unsuitable terrain and restricted vision due to fog.
- [NTSB FTW90DQG02](https://openairdocs.org/ntsb/FTW90DQG02.md): Bellanca BL-DW-1 · Petersberg, TX · Accident · No injuries · Final report · May 19, 1990 · N8803E · Substantial damage
  > Loss of directional control as the result of an encounter with a dust devil.
- [NTSB LAX90LA108](https://openairdocs.org/ntsb/LAX90LA108.md): Piper PA-32-R-300 · Sacramento, CA · Accident · No injuries · Limited investigation · Final report · Jan 20, 1990 · N38908 · Substantial damage
  > An inadvertent collision with a large bird during the hours of darkness while in the landing pattern.

## 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 year(c."eventDate") = 1990
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41530&year=1990

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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.