# NTSB investigations: Amateur-built UNKNOWN ENG, 1997

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 SEA98LA016](https://openairdocs.org/ntsb/SEA98LA016.md): Short Brothers SD3-60 · Billings, MT · Accident · No injuries · Limited investigation · Final report · Nov 25, 1997 · N691A · Substantial damage
  > The co-pilot's failure to maintain the proper descent rate on final approach, the pilot-in-command's delayed remedial action, and overload of the left main landing gear assembly. Factors contributing were snow, crosswind conditions and deteriorating…
- [NTSB FTW98LA034](https://openairdocs.org/ntsb/FTW98LA034.md): Wsk Pzl Mielec M-18A · Roanoke, LA · Accident · No injuries · Limited investigation · Final report · Oct 27, 1997 · N149RA · Substantial damage
  > loss of engine power for an undetermined reason(s). A factor relating to the accident was: the lack of suitable terrain for a forced landing.
- [NTSB SEA98LA008](https://openairdocs.org/ntsb/SEA98LA008.md): Beckham RV-4 · Scio, OR · Accident · 1 fatal · Limited investigation · Final report · Oct 26, 1997 · N160HB · Destroyed
  > The pilot-in-command's loss of control of the aircraft for undetermined reasons.
- [NTSB FTW98LA015](https://openairdocs.org/ntsb/FTW98LA015.md): Sego Tool Hawk H2X · Tooele, UT · Accident · No injuries · Limited investigation · Final report · Oct 15, 1997 · N4412X · Substantial damage
  > The pilot's failure to maintain aircraft control. Contributing was the inadequate design of the flight control systems, resulting in slow response to pilot input.
- [NTSB NYC98LA010](https://openairdocs.org/ntsb/NYC98LA010.md): Sukhoi SU-29 · Williamstown, NJ · Accident · No injuries · Limited investigation · Final report · Oct 11, 1997 · N929CB · Substantial damage
  > The pilot misjudged his altitude and airspeed.
- [NTSB FTW97LA360](https://openairdocs.org/ntsb/FTW97LA360.md): Schweizer SGS 1-34 · Heber City, UT · Accident · No injuries · Limited investigation · Final report · Sep 23, 1997 · N7636 · Substantial damage
  > The pilot's improper use of spoilers during the landing sequence. Factors were the embankment and the fence.
- [NTSB IAD97LA121](https://openairdocs.org/ntsb/IAD97LA121.md): Pohlman/Pohlman Rotorway Exec 90 · Westminster, MD · Accident · Minor injuries · Limited investigation · Final report · Sep 21, 1997 · N94CJ · Substantial damage
  > The loss of power due to carburetor icing. A factor to this accident was the carburetor heat was not accessible from within the cockpit.
- [NTSB FTW97LA337](https://openairdocs.org/ntsb/FTW97LA337.md): Piper PA-22 · Saratoga, WY · Accident · No injuries · Limited investigation · Final report · Sep 3, 1997 · N8731C · Substantial damage
  > The pilot's failure to consult airplane performance data based upon the weather conditions that prevailed. Factors were terrain induced turbulence and high density altitude.
- [NTSB SEA97LA189](https://openairdocs.org/ntsb/SEA97LA189.md): Rotz RAF 2000 GTX SE · Olympia, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 1997 · N9155H · Substantial damage
  > The pilot's failure to attain adequate rotor rpm prior to takeoff.
- [NTSB NYC97LA163](https://openairdocs.org/ntsb/NYC97LA163.md): Elliot Monnett Moni · Hollis, NH · Accident · 1 fatal · Limited investigation · Final report · Aug 9, 1997 · N2400M · Destroyed
  > The pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall spin and collision with terrain.
- [NTSB FTW97LA300](https://openairdocs.org/ntsb/FTW97LA300.md): Poor Boys Toys Exec 90 · Patricia, TX · Accident · No injuries · Limited investigation · Final report · Aug 1, 1997 · N596PB · Substantial damage
  > The failure of the pilot to maintain terrain clearance with the crops during a surveying flight. A factor was the pilots diverted attention.
- [NTSB LAX97LA265](https://openairdocs.org/ntsb/LAX97LA265.md): Schempp-Hirth DUO Discus · Minden, NV · Accident · No injuries · Limited investigation · Final report · Jul 24, 1997 · N125DD · Substantial damage
  > The pilot's failure to ensure that the wings were maintained at a lateral level attitude during the initial landing rollout. A factor in the accident was the rough, uneven nature of the terrain chosen for the landing.
- [NTSB ATL97LA111](https://openairdocs.org/ntsb/ATL97LA111.md): Avid IV · Memphis, TN · Accident · No injuries · Limited investigation · Final report · Jul 21, 1997 · N913R · Substantial damage
  > The pilot's failure to maintain control of the aircraft during takeoff. A factor in the accident was the repositioning of the control stick.
- [NTSB ATL97LA103](https://openairdocs.org/ntsb/ATL97LA103.md): Hughes 269C · Johnston, SC · Accident · No injuries · Limited investigation · Final report · Jul 13, 1997 · N7413F · Substantial damage
  > failure of the pilot to maintain the proper rotor RPM during the approach and flare for landing.
- [NTSB CHI97LA190](https://openairdocs.org/ntsb/CHI97LA190.md): Dietrich Nieuport 12 · Byron, MI · Accident · Serious injuries · Limited investigation · Final report · Jun 29, 1997 · N169RD · Destroyed
  > The owner/pilot mechanic's inadequate inspection of the aircraft which led to contamination (other than water) of the fuel filter.
- [NTSB NYC97LA127](https://openairdocs.org/ntsb/NYC97LA127.md): Eiriavion PIK-20E · Rochester, VT · Accident · No injuries · Limited investigation · Final report · Jun 23, 1997 · N1043G · Substantial damage
  > The pilot's inadequate evaluation of the weather that consisted of downdrafts and his inadequate start procedures that resulted in a forced landing and collision with trees.
- [NTSB LAX97LA183](https://openairdocs.org/ntsb/LAX97LA183.md): North American Navion NA-1 · Morristown, AZ · Accident · No injuries · Limited investigation · Final report · May 18, 1997 · N8551H · Substantial damage
  > failure to replace an old and abraded oil feedline hose which led to its rupture and the in-flight loss of engine oil pressure. A related factor was the pilot's misjudgment of distance-to-go versus altitude remaining during the subsequent forced landing.
- [NTSB FTW97IA362](https://openairdocs.org/ntsb/FTW97IA362.md): Ayres S2R-G10 · Munday, TX · Incident · No injuries · Incident investigation · Final report · May 8, 1997 · N3298Y · Minor damage
  > blockage of both fuel lines from the left wing tank to the header tank by silicone rubber contaminants (foreign material), which resulted in fuel starvation. A related factor was the lack of suitable terrain for the forced landing.
- [NTSB MIA97LA091](https://openairdocs.org/ntsb/MIA97LA091.md): Hackett Windex 1200C · Wauchula, FL · Accident · 1 fatal · Limited investigation · Final report · Mar 2, 1997 · N1201G · Destroyed
  > failure of the pilot to maintain adequate airspeed, while maneuvering, which resulted in an inadvertent stall/spin and subsequent collision with terrain.
- [NTSB LAX97LA118](https://openairdocs.org/ntsb/LAX97LA118.md): Balloon Works AX-8B · Parker, AZ · Accident · Serious injuries · Limited investigation · Final report · Mar 1, 1997 · N9033H · No damage
  > the pilot's inadequate in-flight planning, which resulted in an excessive descent and subsequent hard landing, due to a drop in fuel pressure along with shifting winds at low altitude.
- [NTSB ATL97IA035](https://openairdocs.org/ntsb/ATL97IA035.md): Boeing 757-232 · Atlanta, GA · Incident · No injuries · Incident investigation · Final report · Jan 31, 1997 · N611DL · Minor damage
  > failure of the Stage 1 High Pressure Turbine due to a fatigue fracture in a disk blade retention lug.
- [NTSB FTW97LA079](https://openairdocs.org/ntsb/FTW97LA079.md): Hughes 369HS · Wellington, CO · Accident · Minor injuries · Limited investigation · Final report · Jan 7, 1997 · N9089F · Destroyed
  > The pilot's failure to maintain control of the aircraft and his improper autorotation technique that induced the roll and subsequent ground collision. A factor was his lack of recurrent training.

## 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") = 1997
  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=1997

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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.