B767-300 and 300 ER
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 20; Flight Crew Total 9000; Flight Crew Type 200
Situational Awareness
Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter Unstabilized Approach
Air Traffic Control Issued Advisory / Alert; Flight Crew Returned To Clearance
Weather
During approach to Runway XX into ZZZZ; controller assigned us to descend to 3;000 ft. reported wind shear and turbulence in the area; we lost 500 ft. due to moderate turbulence and wind shear. Controller advised us of our lower than assigned altitude; we were in visual conditions and had the landing runway in sight. Continued approach and landed without further incident.
Descended below assigned altitude approximately 500 ft due to turbulence and wind shear just prior to glideslope intercept. Instead of climbing back up; just intercepted glideslope at that altitude..aircraft was below clouds with runway in sight.
Pilots reported losing 500 feet of altitude on final approach due to moderate turbulence and wind shear.