04 Apr 2025 Incorrect Grid Lowest Safe Altitude (LSALT) Notices & Alerts / Incorrect Grid Lowest Safe Altitude (LSALT) Included Regions (1) Australia Included Areas (1) Australia (All) Jeppesen NavData for cycle 2503, effective 20 March 2025 contains an incorrect Grid Lowest Safe Altitude (LSALT) within Australia. The incorrect LSALT value falls within the 1 degree grid bounded by S31 00.0 – S30 00.0 and E149 00.0 – E150 00.0. The correct LSALT value within this 1 degree grid should be 4100’. Revised coding will appear in Jeppesen NavData for cycle 2504, effective 17 April 2025. Until then an entry will appear in the NavData Change Notices and this Alert will be posted on the Jeppesen Web site. Australia LSALT 2503 Back to All Notices & Alerts