What was found
COMBUSTION HEATER REPORTED BACK FIRING IN FLIGHT. MEASURED HEATER EXHAUST PIPE LENGTH AND SCARF ANGLE. NEITHER MEASUREMENT TO SPEC. INSTALLED NEW EXHAUST PIPE ASSY. AND CUT TO PROPER DIMENSIONS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
COMBUSTION HEATER REPORTED BACK FIRING IN FLIGHT. MEASURED HEATER EXHAUST PIPE LENGTH AND SCARF ANGLE. NEITHER MEASUREMENT TO SPEC. INSTALLED NEW EXHAUST PIPE ASSY. AND CUT TO PROPER DIMENSIONS.