transpondersoff said:
You are correct minitour. The pre-solo written has no experation date.
Although, in the context of the question, it's probably a good idea to give a new one.
Let's take a look at 61.87(b):
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Aeronautical knowledge. A student pilot must demonstrate satisfactory aeronautical knowledge on a knowledge test that meets the requirements of this paragraph:
(1) The test must address the student pilot's knowledge of -
(i) Applicable sections of parts 61 and 91 of this chapter;
(ii) Airspace rules and procedures for the airport where the solo flight will be performed; and
(iii) Flight characteristics and operational limitations for the make and model of aircraft to be flown.
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No, there's no expiration date, but
(i) has changed a lot in the past 13 years
(ii) has changed if it's a different airport and may have changed =a lot even if it's the same airport.
(iii) will change with new types of aircraft
Not to mention that the student probably lost mot if not all of the knowledge information he once had.
I've never seen any guidance on this, but arguably, a solo knowledge test given in 1992 at Podunk Airfield in a J3 Cub might not be legally valid in 2005 near Washington DC in a Cirrus SR20.
Legalities aside, it's probably ago idea to give a new test.