Consolidated PBY Catalina

The crew was performing a training mission off San Francisco, consisting of landing maneuvers. Upon landing, the seaplane plunged and sank. Three crew members were killed while six others were injured.
Crew (VP-63):
Lt(jg) Henry Kovacs, pilot, †
Ap1c Jack H. Johnson, copilot, †
Rm3c Hiram G. O'Dell, †
Amm1c George N. Moore,
Amm3c Francis R. Pearson,
Rm3c Richard G. Peterson,
RT1c Earle T. Rose,
Eugene Stewart Ferguson,
Frederick M. Hollen.

After takeoff from Topham Airfield, Canton Island, the right engine started to vibrate and caught fire. The pilot ditched the airplane in open water with the landing gear down. The seaplane sank and all nine occupants were quickly rescued.
Crew (VP-71):
Lt(jg) Frederic L. Feind, pilot,
Ens L. L. Harkness,
Amm1c T. H. Freeman,
Amm2c R. L. Hall,
Amm2c L. G. Sheperd,
Rm2c J. J. Conrad,
Rm3c H. L. Wipprecht,
Sgt Troia,
Pfc Goodpasture.

Water-looped while landing off Whidbey Island NAS and sank. Both crew members were killed.

While performing a training exercise, the seaplane crashed in unknown circumstances into Lake Pontchartrain, near New Orleans. Three crew members were killed and 13 others occupants were injured.

This accident occurred while flying over Greenland Ice Cap at an altitude of 4500-ft indicated. This should have given a clearance of 1000-ft according to charts of the area. Weather and snow covered terrain resulted in poor depth perception (whiteout conditions). Without realizing they were close to the ice, as a horizon was visible and were not on instruments, they suddenly made contact on the upgrade of a 400-ft slope. the pilot immediately applied throttles in an attempt to get into air but was unsuccessful due to the slope. Further attempts to swing plane around in order to take-off down grade were unsuccessful as plane sank into snow and ice. Block and tackle was dropped, but that also proved unsuccessful. The Ice Cap presents an unbroken pure white surface and when the prominent cost of landmarks are not visible, depth perception is extremely difficult, analagons to flying over glassy water in low visibility. It is considered that the fundamental cause of this accident was the almost lack of depth perception. This plane and its crew were strained on the ice cap for fifteen days, but were in constant touch with there base by radio. A plane dropped supplies and salvage equipment. On the 14th day a Danish Rescue party reached them. On the fifteenth day they abandoned there plane, all confidential publications, the IFF, SBAE and RADAR being destroyed. They returned by foot to the rescue party's came and on the sixteenth day returned to the NORTH STAR. Except for extreme cold, none of the crew suffered any ill effects.
Crew:
Lt R. W. Shepard, pilot,
Lt A. H. Gilster, copilot,
AP2c M. V. Egert,
Amm2c N. J. Richey Jr.,
Amm3c W. Blankenship,
Rm1c J. J. Rutowski,
Rm3c E. R. Herbert.
Source: http://www.warcovers.dk/greenland/crash270143.htm

The seaplane departed Elizabeth City NAS on a maritime patrol flight. Shortly after takeoff, while climbing, the right wing dropped by 30° then the airplane impacted trees and crashed in a wooded area, bursting into flames. Three crew members were killed and four others were injured.
Crew (VP-31):
Lt(jg) William Baxter Waldrop, pilot, †
Ens Edgar Penford Arnold, †
Amm2c William J. Casey, †
Ens Richard N. Vest,
Amm1c James A. Owens,
Amm2c James D. Ballard,
Rm3c Chester R. Sims.

The seaplane departed Saint John's Lightship at 1840LT on a maritime patrol flight. While cruising at night along the east coast, it crashed in unknown circumstances into the Atlantic Ocean of Brunswick. No trace of the aircraft nor the crew was found.
Crew (VPB-2):
Ens Leonard C. Urquhart Jr., pilot,
Ens John J. Sullivan,
Ens Philip S. Walsh,
Rm3c Cecil H. Boland,
Amm3c John S. Hawkins.

While cruising along the west coast of Australia, the left engine caught fire. The pilot made an emergency landing in open sea in the region of Lancelin, some 100 km north of Perth. All occupants evacuated safely and were rescued. The airplane drifted to the beach and was severely damaged by coral heads and rough seas. It was damaged beyond repair and not recovered.
Crew:
Lt Charles R. Dillon, pilot,
Lt Col Young,
Lt Col Walker,
Cdr John P. Dix,
Lt(jg) Oscar W. Berssenbrugge,
Lt(jg) Raymond L. Ettinger,
Cpt Myron W. Anderson,
Amm1c William J. Brown,
Amm3c William J. Pope,
Acrm Floyd A. Simon,
Rm2c Lawrence C. Katz,
Cpt Joseph J. Ruzak
Amm1c Jesse R. Barnes,
Amm3c Howard S. Depee,
Rm1c Robert H. Faul,
Rm2c Howard R. Commons,
Aom1c Darrel D. Mitchell.

Crashed on takeoff for unknown reason. There were no fatalities. The airplane was damaged beyond repair.

The crew was performing a gunnery exercise out from Kings Point Naval Operation Base, north of Somerset Village, Bermuda. While cruising at an altitude of 1,000 feet, the aircraft entered an uncontrolled descent and crashed in a 60° angle into the sea some 5 km northwest of Hamilton. All eight crew members were killed.
Crew:
Lt Ralph Robert Stevenson, pilot,
Ens J. H. Gibson,
Arm2c F. J. Bendars,
Amm2c L. H. Schmit,
Amm3c D. G. Straub,
Amm3c J. J. Sweeny,
Amm3c H. W. Scott,
Arm3c A. Thayer Jr.