# Accident 19900924042189A: Cessna 500CESSNA, San Luis Obispo, CA, September 24, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 24, 1990, 07:02 local time
- Place: San Luis Obispo, CA
- Airport: San Luis Obispo County
- Damage: Destroyed
- Phase of flight: Final Approach-IFR
- Operating rules: General operating rules (Part 91)
- Location: 35.2501° N, 120.6209° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=35.2501&lon=-120.6209&mi=10
- Aircraft: N79DD, a cancelled registration (https://openairdocs.org/deregistered/N79DD-2013-06-07) (OpenAirDocs)
- Registry model: Cessna 500 (registry code 2076602, https://openairdocs.org/model/cessna-500) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada JT15D-1A (registry code 52110, https://openairdocs.org/engine/pratt-whitney-canada-jt15d-1a) (OpenAirDocs)
- Reported make and model: CESSNA 500CESSNA
- Reported engine: PWA JT15D1
- People aboard: 4
- Fatal injuries: 4
- Pilot flight hours: 1,021 total, 95 in this make and model
- NTSB investigation: [NTSB LAX90FA332](https://openairdocs.org/ntsb/LAX90FA332) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19900924042189A

## Narrative

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

DESCENDED BELOW DH ON ILS APPROACH. STRUCK TREES. WEATHER BELOW LANDING MINIMUMS. ADVISED TOO LOW. REPORTED VISUAL.

## 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 LAX90FA332](https://openairdocs.org/ntsb/LAX90FA332), Sep 24, 1990: Cessna 500 (N79DD), San Luis Obispo, CA, destroyed, 4 fatal. Probable cause: THE PILOT'S IMPROPER IFR (INSTRUMENT) PROCEDURE, AND HIS FAILURE TO MAINTAIN THE MINIMUM DESCENT ALTITUDE (MDA) FOR THE APPROACH. THE ADVERSE WEATHER WAS A RELATED FACTOR.

## Other reports on N79DD (1)

Matched to the same aircraft by N-number and date.

- [Incident 19900920049309I](https://openairdocs.org/incident/19900920049309I), Sep 20, 1990: Cessna 500CESSNA (N79DD), San Luis Obispo, CA. Both main tires blew on landing. Pilot stated he had anti-skid system on. Had little braking action. Brakes locked.

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.

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