# NTSB investigations: CFM International CFM56 series, 1996

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 ANC97LA015](https://openairdocs.org/ntsb/ANC97LA015.md): Boeing 737-400 · Yakutat, AK · Accident · Serious injuries · Limited investigation · Final report · Dec 22, 1996 · N775AS · No damage
  > an in-flight encounter with unforecast severe clear air turbulence.
- [NTSB CHI97IA034](https://openairdocs.org/ntsb/CHI97IA034.md): Airbus Industrie A-320-211 · Romulus, MI · Incident · No injuries · Incident investigation · Final report · Nov 24, 1996 · N310NW · No damage
  > restricted movement of the autopilot mode engagement/disengagement lever bearing in the rudder artificial feel and trim unit. A factor relating to this incident was: company management not implementing the respective service bulletin.
- [NTSB LAX97LA051](https://openairdocs.org/ntsb/LAX97LA051.md): Boeing 737-500 · Bishop, CA · Accident · Serious injuries · Limited investigation · Final report · Nov 20, 1996 · N916UA · No damage
  > a clear air turbulence encounter.
- [NTSB MIA96LA220](https://openairdocs.org/ntsb/MIA96LA220.md): Boeing 737-300 · Chattanooga, TN · Accident · Serious injuries · Limited investigation · Final report · Aug 29, 1996 · N392US · Minor damage
  > clear air turbulence, which was encountered during cruise flight and resulted in injuries to passengers.
- [NTSB CHI96IA207](https://openairdocs.org/ntsb/CHI96IA207.md): Airbus Industrie A-320 · Boston, MA · Incident · No injuries · Incident investigation · Final report · Jun 14, 1996 · N347NW · No damage
  > an undetermined intermittent fault in the trimmable horizontal stabilizer actuator system.
- [NTSB LAX96LA222](https://openairdocs.org/ntsb/LAX96LA222.md): Boeing 737-322 · San Francisco, CA · Accident · No injuries · Limited investigation · Final report · Jun 7, 1996 · N371UA · 2 aircraft · Substantial damage
  > inadequate visual lookout by the United Airlines tug driver during the pushback operation. Contributing factors were: the driver's reduced ability to observe the American B-767 due to the nighttime condition, and United Airlines management's failure to ensure…
- [NTSB LAX96IA184](https://openairdocs.org/ntsb/LAX96IA184.md): Boeing 737-300-3H4 · Ontario, CA · Incident · No injuries · Incident investigation · Final report · Apr 30, 1996 · N331SW · Minor damage
  > The repair facility's improper assembly of the landing gear oleo strut during overhaul.
- [NTSB CHI96IA109](https://openairdocs.org/ntsb/CHI96IA109.md): Airbus Industrie A320-211 · Detroit, MI · Incident · No injuries · Incident investigation · Final report · Mar 18, 1996 · N340NW · No damage
  > a defective diode in the number two stabilizer actuator that produced an intermittent loss of electrical motor power during transient, closed loop control of the actuator. A factor was the intermittent open circuit in the elevator servo controller…

## 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") = 1996
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('13802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=13802&year=1996

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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.