SYNOPSIS
While the aircraft was conducting an Instrument Landing System (ILS) approach to Runway (RWY) 26 at EIKY with the autopilot engaged, difficulty was experienced in following the glideslope and the aircraft descended below the glide path. As the aircraft passed over a ridge on the approach the Enhanced Ground Proximity Warning System5 (EGPWS) activated and a go-around was initiated. Following this, a non-precision approach was flown which resulted in a successful landing. During that approach similar problems with the glideslope were experienced.
Subsequent examination by the Operator found that the unstable reception of the ILS glideslope signal was caused by a missing reflective strip from the inside of the aircraft’s radome which had been recently repaired.
