Seeing as a MAYDAY is - ' I am in need of urgent assistance (OK) and I AM in imminent danger'.
Whereas; a PAN is' I am in need of urgent assistance and BUT I AM NOT in imminent danger'.
James,
Not sure where you got your definations from.
From CAP413
a) Distress A condition of being threatened by serious and/or imminent danger and
of requiring immediate assistance.
b) Urgency A condition concerning the safety of an aircraft or other vehicle, or of
some person on board or within sight, but does not require immediate assistance.
1.2.2 The pilot should make the appropriate emergency call as follows:
a) Distress ‘MAYDAY, MAYDAY, MAYDAY’
b) Urgency ‘PAN PAN, PAN PAN, PAN PAN’
A Pan indicates that you do not require immediate assistance, while a Mayday indicates that you do require immediate assistance.
dp