Hook A Right ... Twice

Perhaps its a bias from learning to fly in Colorado, but I never think of Pennsylvania as particularly mountainous. Yet mountain-dodging is what jumped to mind looking at the RNAV (GPS) Rwy 12 into Williamsport, PA (KIPT). Approach designers dont toss in a 26-degree turn at the final approach fix for no reason, nor do they allow another 16-degree turn from the final approach course to the runway-unless they have to.

jwanwest

Sunday, February 11, 2018 at 12:00 AM ET

Verified

Key Takeaways:

The RNAV (GPS) Rwy 12 approach into Williamsport (KIPT) is highly complex due to significant terrain in a river valley, necessitating multiple turns, step-downs, and a steep descent, which are often hinted at by basic chart features or explicitly shown on detailed charts.
Various chart elements, such as "NA" minimums for certain aircraft categories, night operations, or circling, along with specific profile view notes about obstacle surfaces, signify extensive terrain and obstacles that pilots must be aware of and "see and avoid."
Pilots must meticulously examine all chart notes, including those for obstacle evaluation, descent angle calculation, lighting information, and "NoPT" segment interpretations, as these provide crucial details for safely executing this challenging approach.

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Perhaps it’s a bias from learning to fly in Colorado, but I never think of Pennsylvania as particularly mountainous. Yet mountain-dodging is what jumped to mind looking at the RNAV (GPS) Rwy 12 into Williamsport, PA (KIPT). Approach designers don’t toss in a 26-degree turn at the final approach fix for no reason, nor do they allow another 16-degree turn from the final approach course to the runway—unless they have to.

However, the chart just shows a river and a few towers. What gives?