Narrative:

I had taken a fellow private pilot out to fly the piper cherokee PA-28 140 that I had just recently bought; he received all of his ppl training in a PA-28 140 and has had numerous hours in the same type and make of the aircraft. We had flown up to ZZZ1 in which I had handled the take off from ZZZ and the landing at ZZZ1. I had allowed him to fly when we were in the cruising part of the flight to allow him to get used to the controls. After landing at ZZZ1 I swapped seats and allowed the other pilot to become PIC while I was just a passenger. The takeoff form ZZZ1 was uneventful as was the flight back to ZZZ. Once arriving at ZZZ he made all of his self announce radio calls and entered the pattern for runway xx then performed his landing sequence like normal; but upon touching down on the runway the plane almost immediately veered to the left and ran off of the edge runway xx into the grass. At the time there was no noticeable damage [to] the aircraft and no damage to any airport equipment or lights. After looking everything over we started the aircraft back up and taxied to the ramp. After thinking about the landing; when he landed the plane his nose was not straight and was pointed to the right I believe that he may have been correcting to the left to straighten the nose and when the front wheels touched down he over corrected and forced us off the runway to the left.

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Original NASA ASRS Text

Title: PA-28 owner; riding as a passenger; reported pilot flying experienced a loss of aircraft directional control during landing resulting in runway excursion.

Narrative: I had taken a fellow private pilot out to fly the Piper Cherokee PA-28 140 that I had just recently bought; he received all of his PPL training in a PA-28 140 and has had numerous hours in the same type and make of the aircraft. We had flown up to ZZZ1 in which I had handled the take off from ZZZ and the landing at ZZZ1. I had allowed him to fly when we were in the cruising part of the flight to allow him to get used to the controls. After landing at ZZZ1 I swapped seats and allowed the other pilot to become PIC while I was just a passenger. The takeoff form ZZZ1 was uneventful as was the flight back to ZZZ. Once arriving at ZZZ he made all of his self announce radio calls and entered the pattern for Runway XX then performed his landing sequence like normal; but upon touching down on the runway the plane almost immediately veered to the left and ran off of the edge Runway XX into the grass. At the time there was no noticeable damage [to] the aircraft and no damage to any airport equipment or lights. After looking everything over we started the aircraft back up and taxied to the ramp. After thinking about the landing; when he landed the plane his nose was not straight and was pointed to the right I believe that he may have been correcting to the left to straighten the nose and when the front wheels touched down he over corrected and forced us off the runway to the left.

Data retrieved from NASA's ASRS site 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.