This was a daylight precision bombing mission involving 19 planes from the 6th Bomb Group:

The next bombing mission was another attack on Truk – the airfield on Moen Island. Nineteen aircraft with 500-lb general purpose bombs completed the mission, however results were poor, as disclosed by strike photographs.
[Pirate’s Log, p. 29]

20th Af Mission 36

Date:18 February 1945
Code Name:Panhandle #5
Target:Truk Airfields One and Two
Participating Units:313th Bombardment Wing
Number of A/C Airborne: 36
% A/C Bombing Primary:100%
Type of Bombs and Fuzes: 
Tons of Bombs Dropped: 
Time Over Primary:181227K – 181340K
Altitude of Attack:24,000 – 25,900
Weather Over Target:1/10 – 4/10
Total A/C Lost:0
Resume of Mission:Bombing results poor. Slight cratering of runways. AA and enemy air opposition nil. Average bomb load 9492 lbs. Average gas reserve 1335 gallons.