B737 Undifferentiated or Other Model
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 139.7; Flight Crew Total 8980.73; Flight Crew Type 8980.73
Situational Awareness; Confusion
Ground Event / Encounter Ground Equipment Issue; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter CFTT / CFIT
Flight Crew Became Reoriented; Flight Crew FLC complied w / Automation / Advisory
ATC Equipment / Nav Facility / Buildings; Airport; Weather; Procedure; Human Factors
Assigned and flew ILS PRM Y 10R to ORD.  Wind approx 050 at 25G35.  Broke out about 1000 feet. In transition to lining up the runway got a glide slope warning which was corrected and the landing  was completed without incident. During debrief; we both agreed that a contributing factor was lack of adequate vertical guidance outside the aircraft. Given the weather; wind; and turbulence;  lack of a PAPI (Precision Approach Path Indicator) on this runway can compromise the safety margin when you are having to reference outside resources for lateral guidance and inside resources for vertical guidance.
While descending on the ORD ILS PRM Y 10R Approach; Glideslope Warning annunciation at approximately 700 to 650 feet  in visual conditions. Weather was 1000 to 800 Overcast; good visibility below ceiling; 25 to 30 knot gusty left crosswind; moderate rain. Corrected immediately and back on glideslope in short order. Close enough to 500 feet where a go-around would have been the most conservative course of action; however at and below 500 feet balance of the approach was stable; thus continued to landing.This particular approach is offset; thus a visual maneuver is necessary to line up with the runway. This is exactly when the glideslope deviation occurred. A PAPI (Precision Approach Path Indicator) would greatly enhance the safety of this approach. Event was thoroughly debriefed at the gate.Request consideration for installation of a PAPI ORD Runway 10R.
Flight crew conducting an ILS PRM Y 10R Approach to ORD reported they received a Ground Proximity Alert while transitioning to the visual portion of the approach partially due to no Precision Approach Path Indicator (PAPI) system available for this runway.