Crash of a Douglas DC-8-33 in Monrovia: 56 killed

Date & Time: Mar 5, 1967 at 0256 LT
Type of aircraft:
Operator:
Registration:
PP-PEA
Survivors:
Yes
Schedule:
Beirut – Rome – Monrovia – Rio de Janeiro
MSN:
45253/5
YOM:
1959
Flight number:
RG837
Country:
Region:
Crew on board:
19
Crew fatalities:
Pax on board:
71
Pax fatalities:
Other fatalities:
Total fatalities:
56
Captain / Total flying hours:
17718
Captain / Total hours on type:
1787.00
Copilot / Total flying hours:
15911
Copilot / Total hours on type:
408
Aircraft flight hours:
16775
Circumstances:
VARIG Flight RG837 departed Rome-Fiumicino Airport, Italy, at 21:08 hours GMT on a flight to Monrovia, Liberia. The flight was uneventful until the crew reported at FL45, five miles from the Roberts VOR. ATC then cleared the flight to descend further down to 3000 feet on the VOR and reported a QNH of 1009 mb. The QNH was read back correctly, but the crew did not mention the descent clearance. The pilot-in-command continued to the VOR at FL45 (4500 feet). After sighting the aerodrome runway lights from vertically overhead, the pilot informed the co-pilot that despite the fact that he had the runway completely in sight he would make an IFR/VOR procedure. A VOR/Locator instrument let-down was commenced from 4500 feet over the VOR at an indicated airspeed of 210 slowing to 170 kt, descending at a rate of between 500 to 700 feet per minute until the aircraft arrived at a point inbound over the coastline at 1800 feet on a heading of 047- degrees with the gear down and 35-deg flaps for landing on runway 04. At this point the co-pilot reported: "Runway in sight a little to the left". During the approach from the coast to the airport, the pilot did not make any use of the DME. After the procedure turn, the aircraft was on the correct VOR radial and a smooth approach was carried out during which the aircraft was flown manually. After the procedure turn, the co-pilot called each 100 feet of altitude and the speed and he checked the indication of the vertical speed indicators. At an altitude of about 1000 feet, flaps were put in the full down position and shortly thereafter, at an altitude of 700-800 feet, the aircraft entered some stratus and, further down, fog patches. When entering the stratus layer, the captain told the co-pilot that it was no longer necessary to report altitude and speed and was instructed to look outside and to report as soon as he could see the runway. Over the FR locator beacon, the altitude was about 800 feet, whereas his correct altitude should have been 520 feet. He then increased his rate of descent to between 1200-1500 ft/min, by reduction of power and by pitching the nose of the aircraft down. About 15 seconds after passing FR the co-pilot reported runway in sight, saying also that the visibility was poor and that they were too low. Descent was continued until the DC-8 impacted the ground 6023 feet from the threshold of runway 04, 180 feet to the right of the runway extended centre line with the aircraft coming to rest after a ground slide of approximately 850 feet. The aircraft caught fire and was totally destroyed. A crew members, 50 passengers and five people on a house were killed.
Probable cause:
The failure of the pilot-in-command to arrest in time the fast descent at a low altitude upon which he had erroneously decided, instead of executing a missed approach when he found himself too high over the locator beacon. The following findings were reported:
- The captain did not make use of the available navigational aids by disregarding the indications of his distance measuring equipment during final approach,
- At an altitude below 1 000 ft, the aircraft entered a stratus layer, which at that time completely obscured the runway,
- At the FR, positioned 1.7 NM before the runway threshold, the pilot-in-command saw that his altitude was 800 ft, whereas the correct altitude should have been 520 ft. Contrary to company instructions, he increased his rate of descent to between 1 200-1 500 ft/min by reducing engine power and pitching the nose of the aircraft down, with the intention to arrest his descent at about 500 ft,
- The attempt to level off was insufficient and/or too late, with the result that the aircraft touched the ground some 6 000 ft before the runway threshold when his glide path angle must have been 4.50 or more,
- During impact and the subsequent ground slide of about 850 it, the aircraft broke,up and caught fire,
- Those crew members who escaped relatively unhurt, once outside, might have directed more effort in further evacuation,
- The fire crew acted promptly, but its limited force and the necessary elapse time to reach the scene of the accident prevented them from saving people who might not yet have died.
Final Report:

Crash of a Scottish Twin Pioneer 1 in Limbang

Date & Time: Mar 5, 1967
Operator:
Registration:
9M-ANO
Survivors:
Yes
MSN:
532
YOM:
1958
Location:
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed on landing. No casualties.

Crash of a Fokker F27 Friendship 100 in Mactan: 12 killed

Date & Time: Feb 28, 1967 at 1918 LT
Type of aircraft:
Operator:
Registration:
PI-C501
Survivors:
Yes
Schedule:
Manila - Mactan
MSN:
10147
YOM:
1960
Flight number:
PR345
Location:
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
15
Pax fatalities:
Other fatalities:
Total fatalities:
12
Captain / Total flying hours:
8000
Captain / Total hours on type:
1180.00
Copilot / Total flying hours:
1758
Copilot / Total hours on type:
1116
Aircraft flight hours:
15956
Aircraft flight cycles:
10195
Circumstances:
Flight 345 was a scheduled domestic flight from Manila to Mactan. It departed Manila at 1720 hours on an IFR clearance direct to Mactan, via Amber 1 at flight level 130. At 1908 hours the flight reported to Mactan Control Approach that it was descending through FL 70. It was cleared to FL 50, given an altimeter setting of 29.81 in Hg and requested to report at FL 60. At 1909 hours the flight requested a visual descent from FL 50 to 30 and at 1913 hours it reported commencing a VOR approach to runway 04. At 1917 hours the flight reported on final and Mactan Approach cleared the flight to land, giving the wind as 330'15 kt. The flight acknowledged the clearance and this was the last communication from the aircraft. Whilst on a long final approach commenced from a height of 1 500 feet approximately 4 miles from the runway threshold, the aircraft suddenly assumed a nose-high attitude and additional power was applied. A crew member then came out of the cockpit and spoke in the direction of a number of supernumerary crew travelling in the passenger compartment instructing them to move forward. Moments later a flight attendant came from the cockpit and instructed everybody to move forward. Before all the passengers could comply, the air- craft started banking alternately to the right and left, descending in a tail low attitude and crashed at approximately 1918 hours 0.9 miles before the threshold of runway 04. At 1919 hours the aerodrome controller observed a fire near-the approach end of runway 04 and alerted the emergency services. All four crew members and eight passengers were killed, seven others survived.
Probable cause:
The Board determined that the probable cause of the accident was a loss of control at a low altitude. The contributory factor was the distribution of load which placed the centre of gravity aft of the rear centre of gravity limit. The following finsings were reported:
- No evidence of malfunction or failure of the aircraft or its engines prior to impact was found. Evidence revealed that the aircraft struck the ground in a left wing low attitude with the landing gear extended and the flaps retracted. The elevator trim tab was found in a full nose-down position,
- The aircraft was loaded in such a way that the centre of gravity was located beyond the aft limit.
Final Report:

Crash of a Douglas DC-6 in New York

Date & Time: Feb 24, 1967 at 0225 LT
Type of aircraft:
Operator:
Registration:
N8224H
Flight Phase:
Survivors:
Yes
Schedule:
Philadelphia - Boston
MSN:
43741/290
YOM:
1952
Crew on board:
5
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
6232
Captain / Total hours on type:
3348.00
Circumstances:
While cruising at an altitude of 15,500 feet over Holmdel, New Jersey, the aircraft suffered an explosive decompression of the cabin. A 60 by 125 inches 'panel' detached from the fuselage and struck the engine number three, causing the detachment of its propeller. The crew started an emergency descent and was able to complete an emergency landing at New York Airport. All 14 occupants were evacuated safely while the aircraft was later declared as damaged beyond repair.
Probable cause:
Fatigue fracture of the fuselage and explosive decompression caused by an inadequate maintenance and inspection on part of the ground maintenance personnel. Investigations reported that at the time of the decompression, the cabin was pressurized for 2,500 feet while the aircraft was flying at an altitude of 15,500 feet.
Final Report:

Crash of a Douglas C-47A-1-DK in Danmarkshavn

Date & Time: Feb 23, 1967
Operator:
Registration:
TF-ISA
Survivors:
Yes
MSN:
12184
YOM:
1943
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances. No casualties.

Crash of a Douglas DC-6B in Tegucigalpa: 4 killed

Date & Time: Feb 20, 1967 at 0845 LT
Type of aircraft:
Operator:
Registration:
HR-SAS
Survivors:
Yes
Schedule:
San Pedro Sula – Tegucigalpa – San Salvador – Guatemala City – Mexico City
MSN:
42894/56
YOM:
1947
Flight number:
SH203
Country:
Crew on board:
5
Crew fatalities:
Pax on board:
50
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
13128
Captain / Total hours on type:
682.00
Copilot / Total flying hours:
5799
Copilot / Total hours on type:
206
Aircraft flight hours:
48871
Circumstances:
Flight 203 was a scheduled domestic flight from La Mesa Airport, Cortis Department, to Toncontín, Tegucigalpa, D.C., with three flight crew members, two stewardesses and fifty passengers on board. The gross weight of the aircraft at take-off was 75 023 lbs. After a routine pre-flight check which did not reveal any abnormality, the aircraft took off from La Mesa at 0815 hours. Its estimated flight time was 32 minutes and the en-route altitude was 7 500 ft. After 23 minutes of flight the aircraft contacted Toncontín control tower over "El Rancho" and requested authorization to use frequency 118.1 Mc/s. This was acknowledged by the tower which cleared the aircraft to enter the circuit for a landing on runway 01, the wind being calm. The crew then requested to use runway 19 but the tower refused because there was some traffic on runway 01 and several aircraft were waiting to land on that runway. The landing was initiated, 20° of flaps and the undercarriage were lowered; the pilot reported on base leg and extended the flaps to 300. According to the flight crew the indicated airspeed was 100 kt over the fence located before the threshold of runway 01. The landing was normal and smooth and immediately after the nose-wheel touched down the pilot-in-command called for withdrawal of the safety lock of the propeller reverse system. This was done; however the throttle controls would not shift to the desired position (rearward) to operate the propeller reverse system satisfactorily. Three consecutive attempts were made without success. The pilot evaluated the situation and, since the air- craft had passed the point where a go-around could be attempted, he decided to use the brakes only as they appeared to operate normally at the time. According to some reliable observers (aviation mechanics and tower controllers) one of the aircraft's tires burst approximately halfway down the runway and another tire, possibly on the opposite side, burst 50 m farther down. It was assumed that these tires were the two outermost tires. As the aircraft was nearing the end of the runway, the pilot-in-command became afraid of the pronounced slope ahead and veered to the left to execute a 180° turn (ground loop). The turn was successfully completed; however, due to the aircraft's inertia, the radius of the turn was too wide and the nose-wheel ran into a drainage ditch; the aircraft then skidded, the left undercarriage ran into the same ditch and stayed in it, the nose-wheel broke off, the left wing fuel tanks burst and the propellers of Nos. 1 and 4 engines were damaged. A fire resulting from the intense heat of the brakes and wheels, the spilled fuel and the dry grass immediately broke out and destroyed the aircraft. Four passengers were killed while 51 other occupants were evacuated. The aircraft was destroyed.
Probable cause:
According to the reports of the crew, the probable cause of the accident was the failure of the reverse pitch control mechanism. The Board was not able to confirm or deny this because the fire had obliterated all traces of any possible cause.
Final Report:

Crash of a Lockheed L-188C Electra in Manado: 22 killed

Date & Time: Feb 16, 1967 at 1321 LT
Type of aircraft:
Operator:
Registration:
PK-GLB
Survivors:
Yes
Schedule:
Jakarta – Surabaya – Ujung Pandang – Manado
MSN:
2021
YOM:
1960
Flight number:
GA708
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
84
Pax fatalities:
Other fatalities:
Total fatalities:
22
Captain / Total flying hours:
8054
Captain / Total hours on type:
718.00
Copilot / Total flying hours:
8336
Copilot / Total hours on type:
505
Aircraft flight hours:
12359
Circumstances:
Flight 708 was a scheduled domestic flight from Jakarta to Manado, with intermediate stops at Surabaya and Makassar. It departed Djakarta at 0030 hours GMT on 15 February and proceeded on an IFR flight plan to Surabaya. While en route to Surabaya No. 4 engine would not synchronize. The flight landed at 0200 hours at Surabaya where an oil leak on No. 1 propeller was found. After rectifying these faults the flight departed from Surabaya at 0300 hours. On approaching Makassar bad weather was reported and after two attempts to land, the pilot-in-command elected to divert to another aerodrome. Two aerodromes were available - Denpasar, the first alternate and Surabaya. Although Surabaya was at a greater distance, the pilot-in-command decided for various reasons to return to Surabaya-Juanda and remain overnight. An oil leak on No. 1 propeller was again observed and noted for rectification. The flight departed the next morning at 0010 hours for Makassar where it landed without incident. After approximately a one hour stop at Makassar the flight proceeded to Menado with an estimated time of arrival there of 0512 hours GMT. On approaching Menado the pilot-in-command requested the weather conditions and was given a cloud base of 900 ft and a visibility of 2 km. At an altitude of 1 500 ft the town of Menado and the beach were visible and the aircraft made a 360° turn over the bay of Menado: the aircraft then descended to 900 ft and intercepted the beach on a heading of 120' intending to make an approach to runway 18. The pilot-in-command sighted the runway to his right, continued the approach through a gap between two hills, and called for the undercarriage to be lowered and completion of final checks. He instructed the flight engineer to stand by for an overshoot at which time the approach was being continued with the flaps in the landing position. The aircraft banked 15°-20° to the right, and the co-pilot monitored and called the airspeed. After passing a hill 200 ft above the runway elevation and some 2 720 ft before the runway threshold the pilot-in-command realized he was too high, also the aircraft was still to the left of the centre line and banked to the right. The nose of the aircraft was lowered and after intercepting the glide path at an indicated airspeed of 130 kt the control column was moved rearwards to a normal descent position. With the airspeed rapidly decreasing below the target threshold speed of 125 kt, and whilst still banked to the right, the aircraft landed heavily 3 ft short of the runway manoeuvring area and some 156 ft short of the runway threshold. The undercarriage collapsed and the aircraft skidded, caught fire and came to rest on the runway 1 442 ft after the threshold on a heading of 225°. 22 passengers were killed.
Probable cause:
The Board determined that the probable cause of this accident was an awkward approach technique resulting in an excessive rate of sink on touchdown. Based on all available evidence the Board found that the following factors contributed to the accident:
- The runway width of 98 ft which looks smaller from the pilot's point of view,
- The uneven runway pavement which forces pilots to touchdown as close as possible to the threshold,
- The marginal weather conditions prevailing at the time of the accident which forced the pilot to accomplish a tight circuit,
- The relationship between the rate of sink and the negative thrust at low speed were not known to the pilot and the operator.
Final Report:

Crash of a Douglas C-47B-40-DK in Aleppo: 8 killed

Date & Time: Feb 6, 1967
Operator:
Registration:
YK-ACB
Survivors:
Yes
Schedule:
Damascus - Aleppo
MSN:
16811/33559
YOM:
1945
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
16
Pax fatalities:
Other fatalities:
Total fatalities:
8
Circumstances:
On final approach to Aleppo-Nejrab Airport, the crew encountered marginal weather. In limited visibility, the aircraft was too low when it struck a building, stalled and crashed few hundred yards short of runway threshold. Eight occupants were killed while 11 others were injured. It was reported that the crew was completing the approaching below the glide.

Crash of a Douglas DC-6 in Mérida

Date & Time: Jan 30, 1967
Type of aircraft:
Operator:
Registration:
XA-LAU
Survivors:
Yes
Schedule:
Mexico City – Mérida
MSN:
43059/96
YOM:
1948
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
26
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On final approach to Mérida-Licenciado Manuel Crecencio Rejon Airport, the four engine aircraft stalled and crashed few dozen yards short of runway threshold. All 29 occupants were injured and the aircraft was destroyed.
Probable cause:
Due to poor crew coordination during the final approach, they failed to follow the approach checklist and one of the pilot inadvertently set up the reverse thrust system. Due to low speed, the airplane stalled and crashed. The distance between the aircraft and the ground was insufficient to expect recovery.