M-20 Series Undifferentiated or Other Model
Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 25; Flight Crew Total 5500; Flight Crew Type 60
Situational Awareness; Distraction; Human-Machine Interface
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Weather / Turbulence
Flight Crew Became Reoriented
Weather; Human Factors; Aircraft
[I was] flying ILS approach to Runway 30 at JEF vectored to final ahead of a faster aircraft. [I] attempted to fly approach at faster than standard airspeed; causing everything to occur quicker than normal. Was receiving conflicting readings from the glideslope on two different CDI's; did not see this until late in the approach due to intercept from above published altitudes. GPS and altitude verified the correct CDI data; distraction was associated with the data conflict; arrived at target altitude and broke out of clouds just beyond threshold; decided to maneuver to complete landing when at minimums upon the breakout from clouds. Result was non-standard landing maneuvers; instead of the cleared straight in approach. Approach to low IFR airport was at end of a 2:20 MINUTE IFR flight in IMC and weather avoidance. Correct decision would have been to execute missed approach and trouble shoot any problems at altitude; then re-fly approach.
M20 pilot reports conflicting glideslope information during ILS 30 approach at JEF and breaks out at 300 FT over the threshold. Non-standard landing maneuvers were used to complete landing when at minimums; that did not comply with straight in landing clearance.