Skylane 182/RG Turbo Skylane/RG
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Private
Flight Crew Last 90 Days 21; Flight Crew Total 2441; Flight Crew Type 1800
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR
Flight Crew Became Reoriented
Human Factors
I departed RIR to the north beneath the ONT class C airspace. Turning westward; north of ONT at 2000 ft MSL; I failed to note the residences and neighborhoods on the rising terrain in the foothills and may have been less than 1000 ft AGL. In future; I would review flight plan more accurately for pitfalls in what I believe to be familiar airspace.
C182 pilot reported possible flight below 1000 ft AGL in residential area of rising terrain north of ONT.