PJ, sir, is it reasonable and accurate - based on the data actually in hand and the review, analysis or other cogitation by learned professionals especially and particularly PJ2 - to say that there appears to be a significant mismatch between the terrain measurements or depictions (or some similar element) upon which the approach corridor was designed - and the actual terrain? It appears that a major factor here will be a deficit in reliable and accurate topographic data? (subject to the above-noted qualification of data preliminary in nature and probable cause analysis yet to be stated).
No. There is nothing in this discussion which should be construed to mean that the approach or PAPI was designed using erroneous terrain data, nor is there any suggestion that the LOC 18 approach and PAPI installation do not meet the applicable standards and specifications.