Cessna Citation Mustang (C510)
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor
Flight Crew Total 7200
Situational Awareness
Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Flight Crew Became Reoriented
Human Factors; Aircraft; ATC Equipment / Nav Facility / Buildings
On approach into HKY; I was given direct to ZOMAR and cleared for the GPS 6 LP approach. Weather was 600 feet overcast with pretty good visibility. Approach mode was selected on the autopilot and GPS sequenced the approach arriving at ZOMAR. The autopilot initiated the turn to KUVRE and the approach became active. At this time the glide path was alive and intercepted. As the aircraft proceeded to follow the glide path; at some point during descent the glide path became unreliable and went away. As soon as I noticed; I stopped the descent and leveled off which was at 2;700 MSL. I believe that this was just outside of KUVRE. The autopilot at this point was disconnected. I continued to fly the approach by hand as an LNAV approach. Airport was in sight at MDA and the landing was completed safely.
CE510 pilot reported continuing descent after loss of the glideslope signal on approach into HKY.