Crash of a Martin PBM-5 Mariner off Puerto Belgrano NAS

Date & Time: Jan 4, 1961
Type of aircraft:
Operator:
Registration:
2-P-206
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
11481
Country:
Crew on board:
10
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed into the Bahía Blanca shortly after takeoff from Puerto Belgrano NAS. All 10 crew members were rescued while the seaplane was written off.

Crash of a Martin PBM-5A Mariner off Fakfak: 5 killed

Date & Time: Dec 17, 1959
Type of aircraft:
Operator:
Registration:
16-302
Survivors:
Yes
Schedule:
Sorong - Sorong
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
Following a maritime patrol flight from Sorong-Jefman Airport, the seaplane crashed into the Patipi Bay while trying to land off Fakfak. Five crew members were killed and three others were injured.

Crash of a Martin PBM-5A Mariner in Dabolim: 8 killed

Date & Time: Jun 10, 1959 at 1030 LT
Type of aircraft:
Operator:
Registration:
16-306
Flight Type:
Survivors:
No
Schedule:
Biak - Negombo - Karachi
Location:
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
8
Circumstances:
The aircraft was on its way back to The Netherlands for maintenance purposes. En route from Negombo to Karachi, the crew encountered technical problems and elected to divert to Dabolim Airport for an emergency landing. While on approach at a height of 300 meters, the airplane went out of control and crashed in Vasco da Gama, near runway 26 threshold. Four crew members were seriously injured while four others were killed. A day later, all four survivors died from their injuries.
Crew:
Lt P. A. M. Landsdaal,
Lt M. J. A. Baarspul,
Lt J. Quispel,
Sgt A. Dijkema,
Cpl L. Bemer,
Sgt C. N. Gabeler,
Sgt C. Koster,
Sgt S. Bruin.

Crash of a Martin PBM-5A Mariner into the Atlantic Ocean: 36 killed

Date & Time: Nov 9, 1958 at 1321 LT
Type of aircraft:
Registration:
CS-THB
Flight Phase:
Survivors:
No
Schedule:
Lisbon – Funchal
MSN:
45409
YOM:
1944
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
30
Pax fatalities:
Other fatalities:
Total fatalities:
36
Captain / Total flying hours:
10671
Copilot / Total flying hours:
3367
Copilot / Total hours on type:
890
Aircraft flight hours:
2240
Circumstances:
The airplane was schedule to leave Lisbon at 0700LT but the departure was postponed to midday due to poor weather conditions. It finally left Lisbon-Cabo Ruivo Seaplane Base at 1223LT bound for Funchal, Madeira Island. Shortly after takeoff, the crew was cleared to climb to 8,000 feet and 17 minutes later, the pilot requested the permission to descent to 6,000 feet. At 1321LT, the captain was able to send a brief message 'QUG emergency'. As nothing further was heard from the crew, SAR operations were conducted but eventually suspended few days later as no trace of the aircraft nor the 36 occupants was found. The brevity of the message "QUG EMERGENCY" in which QUG means in the international code 'I am forced to alight immediately' and the absence of an answer to questions, show that there was an abnormal situation on board. The signal "QUG" may also mean, "I will be forced to alight at. . . ' when followed by the indication of the place where the alighting will probably take place.
Probable cause:
Due to lack of evidence, the exact cause of the accident could not be determined with certainty. However, the assumption that the accident may have been the result of an explosion or a major technical issue was not ruled out.
Final Report:

Crash of a Martin PBM-5A Mariner in Abadan: 10 killed

Date & Time: Sep 10, 1958
Type of aircraft:
Operator:
Registration:
16-303
Flight Type:
Survivors:
No
Country:
Region:
Crew on board:
10
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
10
Circumstances:
The seaplane was transferred from Biak to The Netherlands when the crew encountered technical difficulties en route so a stop was made at Abadan. After two weeks maintenance, permission was given to the crew to continue to Europe but shortly after takeoff, an oil leak on engine number one forced the crew to return to Abadan Airport. On approach, the airplane went out of control and crashed in a huge explosion few km from the airfield, killing all ten crew members.
Probable cause:
A technical failure occurred on the engine number one whose thrust reversal system was accidentally triggered for reasons that investigations were unable to determine.

Crash of a Martin PBM-5A Mariner off Middelharnis

Date & Time: Nov 22, 1957 at 1110 LT
Type of aircraft:
Operator:
Registration:
16-305
Flight Type:
Survivors:
Yes
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
For undetermined reason, the seaplane landed hard on the Haringvliet off Middelharnis. On impact, the tail broke off and the airplane came to rest and sank. All seven crew members were injured and evacuated.

Crash of a Martin PBM-5A Mariner at Valkenburg AFB

Date & Time: Oct 11, 1957 at 1200 LT
Type of aircraft:
Operator:
Registration:
16-307
Flight Type:
Survivors:
Yes
Schedule:
Valkenburg - Valkenburg
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew was performing a demonstration flight, taking part to an airshow at Valkenburg AFB. Following uneventful rotations, the pilot started an approach with one engine voluntarily inoperative. On short final, the second engine lost power, the airplane stalled and hit the runway surface, slid for several yards and came to a halt. All five crew members were slightly injured while the aircraft was damaged beyond repair.
Probable cause:
Loss of power on one engine on final.

Crash of a Martin PBM-5A Mariner in Merauke: 9 killed

Date & Time: Aug 12, 1957
Type of aircraft:
Operator:
Registration:
16-312
Flight Phase:
Flight Type:
Survivors:
Yes
Country:
Region:
Crew on board:
10
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
9
Circumstances:
Shortly after takeoff from Merauke-Mopah Airport, while in initial climb, the airplane clip trees and crashed in flames in a wooded area. A crew member was rescued while nine others were killed.

Crash of a Martin PBM-5S2 Mariner off Colón: 15 killed

Date & Time: Oct 31, 1955
Type of aircraft:
Operator:
Registration:
59232
Flight Phase:
Survivors:
No
MSN:
59232
YOM:
1945
Location:
Country:
Crew on board:
16
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
15
Circumstances:
While taking off from the Colón-Coco Solo NAS, the aircraft suffered a right engine failure, lost speed and height and eventually burst into flames while hitting a concrete pier. A crewman survived while 15 others were killed.
Probable cause:
Failure of the right engine on takeoff.

Crash of a Martin PBM-5 Mariner in Trinidad

Date & Time: Jan 20, 1955
Type of aircraft:
Operator:
Registration:
2-P-22
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
11319
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew was supposed to deliver the airplane to Argentina. Enroute, an engine caught fire, forcing the pilot to attempt an emergency landing. The aircraft crashed on Tobago Island and was seriously damaged. There were no injuries. It was later transferred to the US for repair but was destroyed by fire and irreparable.
Probable cause:
An engine caught fire in flight.