# NTSB investigations: Lycoming TI0-540 series, PR

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 ERA22LA123](https://openairdocs.org/ntsb/ERA22LA123.md): Britten-Norman BN-2A-9 · Culebra, PR · Accident · No injuries · Class 3 · Limited · Final report · Feb 15, 2022 · N821RR · Substantial damage
  > The flight crew’s failure to arrest the descent rate during the non-standard approach, which resulted in a hard landing and failure of the right-wing structure. Contributing was the flight instructor’s selection of a challenging approach for initial training.
- [NTSB ERA20LA202](https://openairdocs.org/ntsb/ERA20LA202.md): Piper PA23 · San Juan, PR · Accident · 2 fatal · Class 3 · Limited · Final report · Jun 2, 2020 · N14181 · Substantial damage
  > The pilot’s intentional operation of the airplane with known deficiencies of the left engine and subsequent in-flight loss of control after takeoff. Contributing to the loss of engine power was internal contamination of the left servo fuel injector.…
- [NTSB ERA17FA195](https://openairdocs.org/ntsb/ERA17FA195.md): Piper PA23 · San Juan, PR · Accident · 1 fatal · Field investigation · Final report · Jun 3, 2017 · N21WW · Destroyed
  > The pilot's failure to maintain adequate airspeed, properly correct for left yaw, and his exceedance of the airplane's critical angle of attack during initial climb, which resulted in an aerodynamic stall and subsequent uncontrolled descent into water.
- [NTSB ERA11LA037](https://openairdocs.org/ntsb/ERA11LA037.md): Piper PA-31-350 · Aguadilla, PR · Accident · No injuries · Limited investigation · Final report · Oct 27, 2010 · N350RL · Substantial damage
  > The pilot's improper decision to ditch the airplane after a reported partial loss of engine power and overheat on one engine for undetermined reasons.
- [NTSB ANC06LA078](https://openairdocs.org/ntsb/ANC06LA078.md): Piper PA-23-250 · Borinquen, PR · Accident · Minor injuries · Limited investigation · Final report · Jun 23, 2006 · N75JF · Destroyed
  > Fuel starvation/exhaustion for an undetermined reason during cruise flight, which resulted in a complete loss of engine power to both engines and a ditching in the ocean.
- [NTSB MIA05LA013](https://openairdocs.org/ntsb/MIA05LA013.md): Piper PA-23-250 · San Juan, PR · Accident · No injuries · Limited investigation · Final report · Oct 25, 2004 · N62711 · Substantial damage
  > The pilot-in-command's failure to maintain airspeed while on base to final leg, which resulted in an inadvertent stall/mush and subsequent impact with the runway.
- [NTSB MIA75AM024](https://openairdocs.org/ntsb/MIA75AM024-201305.md): Brittnorm BN-2A · San Juan, PR · Accident · Minor injuries · Closed · Sep 15, 1975 · N122DW · Substantial damage
- [NTSB MIA68F0214](https://openairdocs.org/ntsb/MIA68F0214.md): Piper PA-23 · Dorado Beach, PR · Accident · No injuries · Closed · Oct 3, 1967 · N377DW · Substantial damage

## 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."eventStateOrRegion" = 'PR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41533'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41533&state=PR

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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.