# Accident 20231026020709A: Vans Aircraft Inc RV-12, Novato, CA, October 26, 2023

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 26, 2023, 16:20 local time
- Place: Novato, CA
- Airport: Gnoss Field
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 38.1490° N, 122.5618° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=38.1490&lon=-122.5618&mi=10
- Aircraft: N28BS, registered now (https://openairdocs.org/aircraft/N28BS) (OpenAirDocs)
- Registry model: Vans RV-12 (registry code 0690009, https://openairdocs.org/model/vans-rv-12) (OpenAirDocs)
- Reported make and model: VANS AIRCRAFT INC RV-12
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 2,949 total, 720 in this make and model, 14 in the last 90 days
- NTSB investigation: [NTSB WPR24LA023](https://openairdocs.org/ntsb/WPR24LA023) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20231026020709A

## Narrative

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

THIS WAS THE AIRCRAFT'S FIRST FLIGHT SINCE CONDITIONAL INSPECTION AND CARBERATOR MAINTENANCE. BOTH CARBS ON AIRCRAFT ENGINE WERE REBUILT AND A RUN UP WAS COMPLETED PRIOR TO TAKEOFF.  ALL CHECKS WERE GOOD. ENGINE AND AIRCRAFT REACTED NOMINALLY DOWN RUNWAY, AS SOON AS AIRCRAFT WAS AIRBORNE PILOT NOTICE LOSS OF POWER IN #1 AND #3 CYLINDERS.  PER PILOT, #1 AND #3 CYLINDERS WERE NOT PRODUCING POWER OR EGT INDICATIONS. WHILE LOSING ALTITUDE, PILOT SPOTTED CLOSEST AND CLEAREST LANDING SPOT THAT HE COULD IDENTIFY. NLG STRUCK DIRT BIRM DUE TO LOSS OF POWER BUT WAS ABLE TO LAND WITHOUT INJURIES. MULTIPLE OTHERS SPOTTED AIRCRAFT AFTER IT HAD LANDED, FIRE RESCUE SECURED THE SCENE. NO ISSUES IDENTIFIED WITH THE 9 RESPONSIBILITIES OF THE FAA. NTSB PLANS TO PULL THE ENGINE AT A LATER DATE FOR TESTING/TEARDOWN. IF FURTHER INFORMATION IS FOUND THAT AFFECTS ANY RESPONSIBILITIES OF THE FAA, THIS -23 WILL BE AMENDED AND CORRECTIONS MADE.

## 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 WPR24LA023](https://openairdocs.org/ntsb/WPR24LA023), Oct 26, 2023: Vans RV-12 (N28BS), Novato, CA, substantial damage. Probable cause: A partial loss of engine power during initial climb for undetermined reasons.

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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