As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPLACED PRESSURE SWITCH ASSEMBLY. PILOT COMPLAINT OF LOW FUEL PRESSURE WARNING LIGHT COMING ON ALTITUDE. HAVE NOTED THIS TO BE A REOCCURRING PROBLEM WITH NEW -27 SWITCH ASSEMBLY. OLDER DASH NUMBER SWITCH ASSEMBLY USUALLY HAD A MUCH LONGER TBF RATE. PRESSURE SWITCH ASSEMBLY, FAILURE MODE SEEMS TO ALWAYS BE ALTITUDE RELATED, WARNING LIGHTS USUALLY ILLUMINATE AT OR ABOVE 12,000 FT MSL.