Narrative:

We were doing practice instrument approaches under the hood for instrument currency. Both pilots very high time retired airline pilots; but neither of us flies a lot of IFR these days. We had completed my approaches and other requirements; and I was now the safety pilot for the other guy; and we were doing the last of his approaches. He was doing a letdown to the last altitude; minimums of 1;500 ft. I noticed that we looked a bit low for our distance to the airport; and looked at the chart; and saw that he had misread the altitude for that segment; and we were actually supposed to still be at 2;400 ft! So we were 900 ft low; and neither of us caught it until it was too late. Awfully close to the houses; and we were sure glad there were no towers out there! Lessons learned include how easy it is to misread a chart and go down to minimums one intersection early; how even the safety pilot has duties beyond looking for traffic; and how rusty you get just staying current when you don't fly real IFR a lot. No apparent harm done since we still cleared all the houses by at least 600 ft and approach never noticed or at least never said anything; but I'm going to try to stay current by doing practice approaches more often than the minimum; and when I'm safety pilot I'm going to spend a lot more time watching the approach plate!

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Original NASA ASRS Text

Title: While acting as a safety pilot reporter discovers that his flying partner has descended early to the next step down altitude on a VOR approach.

Narrative: We were doing practice instrument approaches under the hood for instrument currency. Both pilots very high time retired airline pilots; but neither of us flies a lot of IFR these days. We had completed my approaches and other requirements; and I was now the safety pilot for the other guy; and we were doing the last of his approaches. He was doing a letdown to the last altitude; minimums of 1;500 FT. I noticed that we looked a bit low for our distance to the airport; and looked at the chart; and saw that he had misread the altitude for that segment; and we were actually supposed to still be at 2;400 FT! So we were 900 FT low; and neither of us caught it until it was too late. Awfully close to the houses; and we were sure glad there were no towers out there! Lessons learned include how easy it is to misread a chart and go down to minimums one intersection early; how even the safety pilot has duties beyond looking for traffic; and how rusty you get just staying current when you don't fly real IFR a lot. No apparent harm done since we still cleared all the houses by at least 600 FT and approach never noticed or at least never said anything; but I'm going to try to stay current by doing practice approaches more often than the minimum; and when I'm safety pilot I'm going to spend a lot more time watching the approach plate!

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.