# NTSB investigations: Lockheed 12A

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 ERA24FA266](https://openairdocs.org/ntsb/ERA24FA266.md): Lockheed 12 · Jackson, GA · Accident · Serious injuries · Class 3 · Field · Final report · Jun 17, 2024 · N2072 · Substantial damage
  > Maintenance personnel’s failure to properly secure the right brake line, which resulted in a loss of right brake effectiveness during the landing roll and a subsequent runway excursion.
- [NTSB WPR24FA196](https://openairdocs.org/ntsb/WPR24FA196.md): Lockheed 12A · Chino, CA · Accident · 2 fatal · Class 3 · Field · Final report · Jun 15, 2024 · N93R · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack during the initial climb, which resulted in an aerodynamic stall at an altitude insufficient for recovery. Contributing to the accident was the pilot’s failure to ensure that the airplane was…
- [NTSB CHI90FA208](https://openairdocs.org/ntsb/CHI90FA208.md): Lockheed 12A · Oshkosh, WI · Accident · Serious injuries · Field investigation · Final report · Jul 31, 1990 · N12AT · Destroyed
  > The inadequate emergency procedure(s) by the pilot in command following a loss of engine power for undetermined reasons(s).
- [NTSB CHI79FEC40](https://openairdocs.org/ntsb/CHI79FEC40.md): Lockheed 12A · Pontiac, MI · Accident · 1 fatal · Closed · Aug 7, 1979 · N36P · Destroyed
- [NTSB MKC76FCG25](https://openairdocs.org/ntsb/MKC76FCG25.md): Lockheed 12A · Springfield, MO · Accident · Serious injuries · Closed · Sep 15, 1975 · N3486 · Substantial damage
- [NTSB LAX76DUG07](https://openairdocs.org/ntsb/LAX76DUG07.md): Lockheed 12A · Rubidoux, CA · Accident · No injuries · Closed · Jul 14, 1975 · N71K · Substantial damage
- [NTSB MKC75DCD24](https://openairdocs.org/ntsb/MKC75DCD24.md): Lockheed 12A · Osage, IA · Accident · No injuries · Closed · Nov 21, 1974 · N18137 · Substantial damage
- [NTSB UNK74X0112](https://openairdocs.org/ntsb/UNK74X0112.md): Lockheed 12A · Q.Roo, Mexico · Accident · No injuries · Closed · Jun 24, 1974 · N36P · Substantial damage
- [NTSB CHI71FGD30](https://openairdocs.org/ntsb/CHI71FGD30.md): Lockheed 12A · Toledo, OH · Accident · No injuries · Closed · Jul 6, 1970 · N18137 · Substantial damage
- [NTSB DEN69A0047](https://openairdocs.org/ntsb/DEN69A0047.md): Lockheed 12A · Casper, WY · Accident · Serious injuries · Closed · May 9, 1969 · N399X · Substantial damage
- [NTSB CHI68D0634](https://openairdocs.org/ntsb/CHI68D0634.md): Lockheed 12A · Gaylord, MI · Accident · No injuries · Closed · Feb 3, 1968 · N36P · Substantial damage
- [NTSB CHI68D0276](https://openairdocs.org/ntsb/CHI68D0276.md): Lockheed 12A · Montello, WI · Accident · No injuries · Closed · Aug 10, 1967 · N4001 · Substantial damage
- [NTSB FTW67A0058](https://openairdocs.org/ntsb/FTW67A0058.md): Lockheed 12A · Oklahoma Cty, OK · Accident · No injuries · Closed · Dec 1, 1966 · N16085 · Substantial damage
- [NTSB CHI66D0665](https://openairdocs.org/ntsb/CHI66D0665.md): Lockheed 12A · Richmond Hts, OH · Accident · No injuries · Closed · Mar 4, 1966 · N1108 · Substantial damage
- [NTSB UNK64X2707](https://openairdocs.org/ntsb/UNK64X2707.md): Lockheed 12A · Martinsville, VA · Accident · 5 fatal · Closed · Jul 7, 1964 · N18946 · Destroyed

## 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 ('5261402'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=5261402

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