# Incident 19990224013939I: Doug DC3, San Bernadino, CA, February 24, 1999

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: February 24, 1999, 08:15 local time
- Place: San Bernadino, CA
- Airport: Norton Afb
- Phase of flight: Forced/Precautionary Landing
- Operating rules: General operating rules (Part 91)
- Location: 34.1083° N, 117.2898° W: Placed by OpenAirDocs: center of San Bernardino, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.1083&lon=-117.2898&mi=10
- Aircraft: N92578, registered now (https://openairdocs.org/aircraft/N92578) (OpenAirDocs)
- Registry model: Douglas DC3C 1830-94 (registry code 3021469, https://openairdocs.org/model/douglas-dc3c-1830-94) (OpenAirDocs)
- Registry engine: Pratt & Whitney R-1830 series (registry code 52020, https://openairdocs.org/engine/pratt-whitney-r-1830-series) (OpenAirDocs)
- Reported make and model: DOUG DC3
- Reported engine: PWA R183075
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 26,000 total, 6,000 in this make and model, 60 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990224013939I

## Narrative

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

(-5)IMMEDIATELY AFTER TAKEOFF FROM THE SAN BERNARDINO AIRPORT (SBD) AT APPROXIMATELY 500 FEET AGL, THE LEFT ENGINE STARTED BACKFIRING THROUGH THE CARBURETOR. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT SAFELY RETURNED TO SBD WITH NO FURTHER INCIDENT.  THE CAUSE OF THE BACKFIRING WAS INVESTIGATED BY MAINTENANCE PERSONNEL AT SANTA BARBARA AEROSPACE, SAN BERNARDINO.  THEIR FINDINGS REVEALED THAT THE EXHAUST PUSH ROD FOR THE NUMBER 7 CYLINDER BROKE APPROXIAMTELY TWO INCHES FROM THE BOTTOM OF THE ROD.  THIS INCIDENT ON THIS ENGINE OCCURRED WITH 631.5 HOURS SINCE OVERHAUL.  A MALFUNCTION OR DEFECT REPORT WAS INITIATED FOR REPORTING PURPOSES.  THE ENGINE WAS REPAIRED AND THE AIRCRAFT RETURNED TO SERVICE.

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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