Narrative:

The sky was clear; visibility 10 miles. We were issued an amendment to our routing; adding the ffz runway 4R/left departure procedure; reminding us to climb to 3;000 instead of 5;000; and we set the avionics up for departure. After take off; I told the pilot flying to turn left intercept the 220 bearing from ffz NDB and fly that bearing to intercept pxr 145 radial. I was doing after take off check and when I looked at the ADF indicator he had turned left; but just enough to intercept 040 outbound and 220 bearing to. We do not use the ADF [much] any more and the pilot flying got confused on intercepting the 220 bearing. I looked at the indicator on the ADF and told him this is not right; what he was doing; when departure gave us call and said 4200 was the MVA in our area and asked us if we could maintain visual separation. We answered in the affirmative; they cleared us to a heading of 360; intercept the pxr 054 radial and climb to 7;000 J18 sln. As they were issuing our clearance the terrain warning activated. We should have gotten the NDB approach chart to look at the bearings and radials so there would not be any question on the direction from the NDB and direction from the airport. The next time we need to confirm what we are going to do on a chart before we take off.

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Original NASA ASRS Text

Title: A corporate jet flight crew reported deviating from charted track toward rising terrain when they tried to track an ADF course and found their skills were rusty.

Narrative: The sky was clear; visibility 10 miles. We were issued an amendment to our routing; adding the FFZ Runway 4R/L DEP PROC; reminding us to climb to 3;000 instead of 5;000; and we set the avionics up for departure. After take off; I told the pilot flying to turn left intercept the 220 bearing from FFZ NDB and fly that bearing to intercept PXR 145 radial. I was doing after take off check and when I looked at the ADF indicator he had turned left; but just enough to intercept 040 outbound and 220 bearing to. We do not use the ADF [much] any more and the pilot flying got confused on intercepting the 220 bearing. I looked at the indicator on the ADF and told him this is not right; what he was doing; when departure gave us call and said 4200 was the MVA in our area and asked us if we could maintain visual separation. We answered in the affirmative; they cleared us to a heading of 360; intercept the PXR 054 radial and climb to 7;000 J18 SLN. As they were issuing our clearance the terrain warning activated. We should have gotten the NDB approach chart to look at the bearings and radials so there would not be any question on the direction from the NDB and direction from the airport. The next time we need to confirm what we are going to do on a chart before we take off.

Data retrieved from NASA's ASRS site as of April 2012 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.