38 Halifaxes from 405, 408, and 419 Squadrons were ordered to attack the docks at St. Nazaire. The crews were over the target from between 10,000 and 18,000 feet releasing 73,000 lbs of high explosives and 126,000 lbs of incendiaries.

F/O W. Colledge from 405 Squadron returned early as the port inner was u/s. They landed safely at base on 3 engines.
F/Sgt C. Stovel returned early as the rear turret was u/s.
P/O R. Symes returned early as the port outer was u/s. They landed safely at base on 3 engines.
P/O N. Daggett was hit by flak, the port wing and bomb doors were damaged.
F/O W. Weiser and P/O J. Burton landed at Upper Heyford on return.
F/Sgt H. Armstrong landed at Turweston on return.

Sgt E. Dungey of 408 Squadron landed at Upper Heyford on return.
Sgt J. Patry was hit by flak, the stbd outer was damaged. Crew landed safely on 3 engines at Chivenor.
F/O B. Harriss and crew flying Halifax II DT-769 coded EQ-J were attacked by a JU-88, there was no claim or damage.

P/O W. Keddie from 419 Squadron returned early, there was a hydraulic leak.
Sgt A. Green returned early, an engine was u/s. Crew landed safely at base on 3 engines.
F/O C. Porter had the port outer go u/s before reaching the target. The crew bombed and landed safely at base on 3 engines.
 

As well as the raid on St. Nazaire,  429 Squadron sent 6 Wellingtons on a mining operation to Texel. The crews released their loads from between 600 and 1,000 feet, sowing 12@1500 lb mines.

All crews returned safely to base.