# NTSB investigations: Boeing 747-422

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 DCA17WA159](https://openairdocs.org/ntsb/DCA17WA159.md): Boeing 747 422 · Frankfurt, Germany · Incident · No injuries · Foreign investigation · Jul 18, 2017 · N121UA · No damage
  > The BFU of Germany has notified the NTSB of an incident involving a Boeing 747 airplane that occurred on July 18, 2017. The NTSB has appointed a U.S. Accredited Representative to assist the BFU's investigation under the provisions of ICAO Annex 13 as the…
- [NTSB DCA15WA015](https://openairdocs.org/ntsb/DCA15WA015.md): Boeing 747 422 · Frankfurt, Germany · Incident · No injuries · Foreign investigation · Oct 22, 2014 · N120UA · Minor damage
  > The German Federal Bureau of Aircraft Accident Investigation (BFU) has notified the NTSB of an accident involving a Boeing 747 that occurred on October 22, 2014. The NTSB has appointed a U.S. Accredited Representative to assist the BFU's investigation under…
- [NTSB WPR13LA131](https://openairdocs.org/ntsb/WPR13LA131.md): Boeing 747-422 · Pacific Ocean, A1 · Accident · Serious injuries · Limited investigation · Final report · Feb 19, 2013 · N174UA · No damage
  > The flight’s encounter with moderate clear air turbulence while en route, which resulted in a serious injury to a flight attendant. Contributing to the accident was the lack of communication equipment in the rest compartment, which, if installed, could have…
- [NTSB DCA11FA091](https://openairdocs.org/ntsb/DCA11FA091.md): Boeing 747-422 · Tangshan, China · Accident · Serious injuries · Field investigation · Final report · Jul 29, 2011 · N173UA · No damage
  > an inadvertent encounter with convectively induced turbulence likely due to radar limitations and convective weather developing upwards into the flight path.
- [NTSB DCA10CA032](https://openairdocs.org/ntsb/DCA10CA032.md): Boeing 747 · Anchorage, AK · Accident · Serious injuries · Data collection · Final report · Feb 19, 2010 · N173UA · Minor damage
  > an inadvertent encounter with clear air turbulence.
- [NTSB LAX07LA204](https://openairdocs.org/ntsb/LAX07LA204.md): Boeing 747-422 · Oceanic · Accident · Serious injuries · Limited investigation · Final report · Jun 27, 2007 · N120UA · No damage
  > An in-flight encounter with turbulence that resulted in serious injury to a flight attendant.
- [NTSB LAX04LA050](https://openairdocs.org/ntsb/LAX04LA050.md): Boeing 747-422 · San Francisco, CA · Accident · No injuries · Limited investigation · Final report · Nov 14, 2003 · N178UA · Substantial damage
  > a tail strike due to a combination of the wind shifting from a headwind to a tailwind during rotation, and the pilot's control inputs for the crosswind condition.
- [NTSB CHI03IA097](https://openairdocs.org/ntsb/CHI03IA097.md): Boeing 747-422 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Apr 1, 2003 · N175UA · No damage
  > Failure of company maintenance personnel to fully comply with published maintenance/inspection procedures, as well as the resulting inoperative drain heaters and restricted movement of the aileron control cables. Contributing factors were the impeded waste…
- [NTSB LAX02LA146](https://openairdocs.org/ntsb/LAX02LA146.md): Boeing 747-422 · Pacific Ocean (Pacific Ocean) · Accident · Serious injuries · Limited investigation · Final report · May 1, 2002 · N182UA · No damage
  > An in-flight encounter with clear air turbulence and wind shear, which resulted in a serious injury to a flight attendant.
- [NTSB LAX99LA212](https://openairdocs.org/ntsb/LAX99LA212.md): Boeing 747-422 · Pacific Ocean (Pacific Ocean) · Accident · Serious injuries · Limited investigation · Final report · Jun 9, 1999 · N198UA · No damage
  > intentional tampering/altering of a galley lift interlock microswitch by unknown persons.
- [NTSB DCA98WA043](https://openairdocs.org/ntsb/DCA98WA043.md): Boeing 747 · Narita, Japan · Accident · Serious injuries · Foreign investigation · May 11, 1998 · N179UA · No damage
- [NTSB CHI97LA292](https://openairdocs.org/ntsb/CHI97LA292.md): Boeing 747-422 · Grand Forks, ND · Accident · Serious injuries · Limited investigation · Final report · Sep 14, 1997 · N175UA · No damage
  > The flight attendant's seat belt was not secured. A factor was turbulence in the clouds.
- [NTSB LAX96LA013](https://openairdocs.org/ntsb/LAX96LA013.md): Boeing 747-422 · Pacific Ocean (Pacific Ocean) · Accident · Serious injuries · Limited investigation · Final report · Oct 17, 1995 · N191UA · No damage
  > an inadvertent encounter with unreported and unforecasted severe turbulence. A factor in the accident was the passengers' non-use of seat belts during cruise flight.
- [NTSB LAX94LA141](https://openairdocs.org/ntsb/LAX94LA141.md): Boeing 747-400 · Pacific Ocean (Pacific Ocean) · Accident · Serious injuries · Limited investigation · Final report · Feb 12, 1994 · N186UA · No damage
  > the failure of the chief steward to verify that all flight attendants had been informed, and were complying with the captain's instructions to remain seated with their seatbelts fastened.
- [NTSB LAX90IA305](https://openairdocs.org/ntsb/LAX90IA305.md): Boeing 747-422 · Los Angeles, CA · Incident · Minor injuries · Incident investigation · Final report · Aug 27, 1990 · N174UA · Minor damage
  > The failure of the manufacturer to ensure that the landing gear selector valves and their associated drum link assemblies were properly installed prior to delivery of the aircraft. A factor in the accident was the lack of information available to the crew…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1384935'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1384935

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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.
