# NTSB investigations: Amateur-built UNKNOWN ENG, 1989

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 LAX90LA048](https://openairdocs.org/ntsb/LAX90LA048.md): Aerostar RX-7 · Chandler, AZ · Accident · Serious injuries · Limited investigation · Final report · Dec 2, 1989 · N64997 · Substantial damage
  > Improper planning/decision by the pilot. Factors related to the accident were: variable and high wind conditions.
- [NTSB CHI90IA006](https://openairdocs.org/ntsb/CHI90IA006.md): Boeing 757-251 · San Francisco, CA · Incident · No injuries · Incident investigation · Final report · Oct 9, 1989 · N512US · Minor damage
  > The extreme wear and eventual failure of a torque tube in the inboard trailing edge flap system. Inspection and lubrication intervals were a factor, as was the physical location of the torque tube with reference to external factors.
- [NTSB ATL89LA221](https://openairdocs.org/ntsb/ATL89LA221.md): Beech B23 · Hatteras, NC · Accident · Minor injuries · Limited investigation · Final report · Sep 29, 1989 · N2333L · Substantial damage
  > Loss of engine power for an unknown reason.
- [NTSB ATL89LA212](https://openairdocs.org/ntsb/ATL89LA212.md): Sikorsky H-34J · Louisville, GA · Accident · No injuries · Limited investigation · Final report · Sep 15, 1989 · N4556D · Destroyed
  > An undetermined malfunction of the main rotor drive system.
- [NTSB ATL89FA196](https://openairdocs.org/ntsb/ATL89FA196.md): Beech A-36 · Chapel Hill, NC · Accident · 1 fatal · Field investigation · Final report · Aug 12, 1989 · N25805 · Destroyed
  > The pilot's failure to maintain control of the airplane while maneuvering for a landing. Contributing factors were: the pilot's failure to follow the emergency procedures for an autopilot malfunction, and pilot fatigue.
- [NTSB BFO89LA067](https://openairdocs.org/ntsb/BFO89LA067.md): Travel Air B-4000 · Midland, VA · Accident · No injuries · Limited investigation · Final report · Aug 3, 1989 · N13906 · Substantial damage
  > The pilot's improper compensation for wind conditions and improper flare during the landing. Contributing factors were:the wind conditions and the pilot's lack of experience in this make and model of aircraft.
- [NTSB LAX89LA245](https://openairdocs.org/ntsb/LAX89LA245.md): Burkhart Grob G-102 · Maricopa, AZ · Accident · No injuries · Limited investigation · Final report · Jul 15, 1989 · N925G · Substantial damage
  > The pilot's inability to maintain airspeed, resulting in a hard landing. Also causal to the accident was the opening of the canopy for undetermined reasons.
- [NTSB DEN89LA165](https://openairdocs.org/ntsb/DEN89LA165.md): Henry Vickers HCV-110 · Newcastle, WY · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1989 · N4831N · Substantial damage
  > The failure to the magneto. The selection of a powerplant with a single magneto system was an improper choice and directly contributed to the cause. The pilot's misjudgement of the wind for the approach to a forced landing resulted in an improper ground…
- [NTSB LAX89LA188](https://openairdocs.org/ntsb/LAX89LA188.md): Schweizer SGS 2-33A · Haleiwa, Oahu, HI · Accident · No injuries · Limited investigation · Final report · Jun 29, 1989 · N2059T · Substantial damage
  > The pilot's failure to adequately compensate for wind conditions and the failure to maintain sufficient altitude to clear obstacles. Contributing to the accident were the downdrafts along the ridge line.
- [NTSB FTW89LA119](https://openairdocs.org/ntsb/FTW89LA119.md): Cessna A185F · Marksville, LA · Accident · No injuries · Limited investigation · Final report · Jun 24, 1989 · N5486R · Substantial damage
  > Failure of the pilot to maintain directional control during the landing roll, which resulted in an inadvertent ground loop and a subsequent nose over.
- [NTSB LAX89DVG05](https://openairdocs.org/ntsb/LAX89DVG05.md): Morse F85P-1 · Redding, CA · Accident · No injuries · Final report · Apr 8, 1989 · N611AA · Substantial damage
  > An animal on the runway. Factors were: the pilot's intentional ground loop and the resultant loss of control.
- [NTSB DEN89LA088](https://openairdocs.org/ntsb/DEN89LA088.md): Miller S.A.L. 2/3 Mustang · Erie, CO · Accident · Minor injuries · Limited investigation · Final report · Mar 19, 1989 · N51RM · Substantial damage
  > Loss of engine power for an unknown reason. Soft uneven terrain was a contributing factor.
- [NTSB ATL89LA108](https://openairdocs.org/ntsb/ATL89LA108.md): Beech A36 · Chamblee, GA · Accident · No injuries · Limited investigation · Final report · Mar 19, 1989 · N72253 · Substantial damage
  > The inattention of the pilot which resulted in the inadvertent retraction of the landing gear during the landing roll.
- [NTSB MKC89LA065](https://openairdocs.org/ntsb/MKC89LA065.md): Composite Aircraft Mfg Cozy · Hudson, IA · Accident · No injuries · Limited investigation · Final report · Feb 25, 1989 · N611CZ · Substantial damage
  > Improper preflight by the pilot which resulted in an inadequate fuel supply and fuel exhaustion.
- [NTSB SEA89IA042](https://openairdocs.org/ntsb/SEA89IA042.md): Fairchild SA-227-AC · Seattle, WA · Incident · No injuries · Incident investigation · Final report · Jan 23, 1989 · N386PH · Minor damage
  > Inoperative nosewheel steering due to improper maintenance. Contributing to the incident was the lack of adequate maintenance information available in the aircraft manuals.

## 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") = 1989
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=99999&year=1989

---
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.