Philip Davidson was one of a number of senior RUC officers killed in the 1994 Mull of Kintyre Chinook crash. According to the Guardian, he was "was tipped as a possible future head of Special Branch. In Belfast he co-ordinated operations between departments". According to Statewatch he was the head of the E3 division within RUC Special Branch.
- Sally Weale and Owen Boycott, CHINOOK DISASTER: COUNTING THE COST OF THE SENIOR FIGURES IN BATTLE AGAINST TERRORISM, Guardian, 4 June 1994.
- Statewatch Bulletin, Vol 4, No 4, August 1994.