# Accident 19730324005409A: Scwzer SGS233, Piedra, CA, March 24, 1973

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 24, 1973
- Place: Piedra, CA
- Airport: Wonder Valley
- Damage: Substantial damage
- Phase of flight: Normal Cruise
- Location: 36.7921° N, 119.3096° W: Placed by OpenAirDocs at Wonder Valley Airport, closed, within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.7921&lon=-119.3096&mi=10
- Aircraft: N5733S, a cancelled registration (https://openairdocs.org/deregistered/N5733S-1981-12-24) (OpenAirDocs)
- Registry model: Schweizer SGS 2-33 (registry code 8051604, https://openairdocs.org/model/schweizer-sgs-2-33) (OpenAirDocs)
- Reported make and model: SCWZER SGS233
- Fatal injuries: 0
- Pilot flight hours: 213 total, 13 in this make and model, 1 in the last 90 days
- NTSB investigation: [NTSB OAK73DVA43](https://openairdocs.org/ntsb/OAK73DVA43) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19730324005409A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

PLT DID NOT FOLLOW ACCEPTABLE PROCEDURE FOR MOUNTAIN RIDGE FLYING.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB OAK73DVA43](https://openairdocs.org/ntsb/OAK73DVA43), Mar 24, 1973: Schweizer 2-33 (N5733S), Piedra, CA, substantial damage

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
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.