Crash of a PZL-Mielec AN-2R in Yunkyur

Date & Time: Sep 1, 1985 at 1123 LT
Type of aircraft:
Operator:
Registration:
CCCP-01789
Survivors:
Yes
Schedule:
Verkhoyansk - Yunkyur
MSN:
1G107-36
YOM:
1969
Flight number:
SU337I
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
12
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
3329
Circumstances:
On final approach to Yunkyur (Sartan) Airstrip, the engine control lever disconnected following a faulty maintenance. The crew attempted an emergency landing in the tundra when the aircraft crash landed few km from the airfield. The aircraft was damaged beyond repair. All 14 occupants were evacuated, among them three passengers were slightly injured.
Probable cause:
Engine control lever disconnected on final approach due to faulty maintenance.

Crash of a Britten-Norman BN-2A Islander near Kokoda: 3 killed

Date & Time: Aug 30, 1985 at 0830 LT
Type of aircraft:
Operator:
Registration:
P2-DNW
Flight Phase:
Survivors:
Yes
Site:
Schedule:
Port Moresby – Kokoda
MSN:
67
YOM:
1969
Flight number:
WW701
Location:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
While cruising under VFR mode in marginal weather conditions, the pilot failed to realize his altitude was insufficient when the airplane struck a wooded mountain. The wreckage was found 17 km south of Kokoda. The pilot and two female passengers were killed. Two other passengers, including the photos author, were evacuated to local hospital. One was seriously injured while the photo author was uninjured.

Crash of a PZL-Mielec AN-2 near Toora-Khem

Date & Time: Aug 29, 1985
Type of aircraft:
Operator:
Registration:
CCCP-70742
Flight Phase:
MSN:
1G130-43
YOM:
1971
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed near the Kara-Os River, in the region of Toora-Khem, following an in-flight engine failure. Occupant fate unknown.
Probable cause:
Engine failure for unknown reasons.

Crash of a Beechcraft 99 Airliner in Auburn: 8 killed

Date & Time: Aug 25, 1985 at 2205 LT
Type of aircraft:
Operator:
Registration:
N300WP
Survivors:
No
Schedule:
Boston - Auburn
MSN:
U-22
YOM:
1968
Flight number:
QO1808
Crew on board:
2
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
8
Captain / Total flying hours:
5153
Captain / Total hours on type:
4467.00
Copilot / Total flying hours:
1453
Copilot / Total hours on type:
153
Aircraft flight hours:
30335
Circumstances:
Flight 1808 took off from Boston runway 04L at 21:30 for a flight to Auburn. Clearance was received of 7000 feet and to contact Portland Approach Control. Portland Approach cleared Flight 1808 at 21:58 for a runway 04 ILS approach. Three minutes later the controller noticed that Flight 1808 was east of course and asked if the it was receiving the Lewiston localizer. The captain replied that they hadn't and were given instructions to turn left heading 340. A left turn to 354° started and the aircraft passed Lewie Outer Marker (LOM) at 165 knots, 2,600 feet (30 knots too fast and 600 feet too high). At 22:02 the aircraft exited the left side of the localizer, still at a 354° heading. The crew then tried to capture the glide slope and enter the localizer again until it entered the left side of the localizer (22:04:08) and descended through the bottom boundary of the glide slope. At ca 22:04:16 the aircraft struck trees 4,007 feet short of the runway and 440 feet right of the extended centreline, continued 737 feet and struck level ground in nearly an inverted attitude. One of the passengers killed in the crash was American schoolgirl, peace activist and child actress Samantha Smith. She was returning to Auburn with her father after taking part to a TV movie in Boston.
Probable cause:
The captain's continuation of an unstabilized approach which resulted in a descent below glide slope. Contributing to the unstabilized approach was the radar controller's issuance and the captain's acceptance of a non-standard air traffic control radar vector resulting in an excessive intercept with the localizer.
Final Report:

Crash of a Boeing 747SR-46 on Mt Osutaka: 520 killed

Date & Time: Aug 12, 1985 at 1856 LT
Type of aircraft:
Operator:
Registration:
JA8119
Flight Phase:
Survivors:
Yes
Site:
Schedule:
Tokyo - Osaka
MSN:
20783
YOM:
1974
Flight number:
JL123
Country:
Region:
Crew on board:
15
Crew fatalities:
Pax on board:
509
Pax fatalities:
Other fatalities:
Total fatalities:
520
Captain / Total flying hours:
12423
Captain / Total hours on type:
4842.00
Copilot / Total flying hours:
3963
Copilot / Total hours on type:
2665
Aircraft flight hours:
25030
Aircraft flight cycles:
18835
Circumstances:
JA8119 was a Japan Air Lines Boeing 747SR, a short range variant of the Boeing 747 Series 100. The was aircraft specifically configured for domestic flights with a high density seating arrangement. On June 2, 1978 the aircraft operated on a flight to Osaka (ITM). It floated after touchdown and on the second touchdown the tail struck the runway. The aircraft sustained substantial damage to the rear underside of the fuselage. The rear pressure bulkhead was cracked as well. The aircraft was repaired by Boeing. Engineers replaced the lower part of the rear fuselage and a portion of the lower half of the bulkhead. Seven years later, on August 12, 1985, JA8119 had completed four domestic flights when it landed at Tokyo-Haneda (HND) at 17:17. The next flight was to be flight 123 to Osaka (ITM). The aircraft took off from Tokyo-Haneda at 18:12. Twelve minutes later, while climbing through 23900 feet at a speed of 300 knots, an unusual vibration occurred. An impact force raised the nose of the aircraft and control problems were experienced. A decompression had occurred and the crew got indications of problems with the R5 door. In fact, the rear pressure bulkhead had ruptured, causing serious damage to the rear of the plane. A portion of its vertical fin, measuring 5 m together with the section of the tail cone containing the auxiliary power unit (APU) were ripped off the plane. Due to the damage, the hydraulic pressure dropped and ailerons, elevators and yaw damper became inoperative. Controlling the plane was very difficult as the airplane experienced dutch rolls and phugoid oscillations (unusual movement in which altitude and speed change significantly in a 20-100 seconds cycle without change of angle of attack). The aircraft started to descend to 6600 feet while the crew tried to control the aircraft by using engine thrust. Upon reaching 6600 feet the airspeed had dropped to 108 knots. The aircraft then climbed with a 39 degree pitch-up to a maximum of approx. 13400 feet and started to descend again. At 18:56 JAL123 finally brushed against a tree covered ridge, continued and struck the Osutaka Ridge, bursting into flames. A stewardess, one female passenger and two little girl survived while 520 other occupants were killed.
Probable cause:
It is estimated that this accident was caused by deterioration of flying quality and loss of primary flight control functions due to rupture of the aft pressure bulkhead of the aircraft, and the subsequent ruptures of a part of the fuselage tail, vertical fin and hydraulic flight control systems. The reason why the aft pressure bulkhead was ruptured in flight is estimated to be that the strength of the said bulkhead was reduced due to fatigue cracks propagating at the spliced portion of the bulkhead's webs to the extent that it became unable to endure the cabin pressure in flight at that time. The initiation and propagation of the fatigue cracks are attributable to the improper repairs of the said bulkhead conducted in 1978, and it is estimated that the fatigue cracks having not be found in the later maintenance inspection is contributive to their propagation leading to the rupture of the said bulkhead.
Final Report:

Crash of a De Havilland DHC-6 Twin Otter 300 in Mulia: 8 killed

Date & Time: Aug 12, 1985
Operator:
Registration:
PK-NUG
Flight Phase:
Survivors:
Yes
MSN:
346
YOM:
1972
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
16
Pax fatalities:
Other fatalities:
Total fatalities:
8
Circumstances:
Crashed shortly after takeoff from Mulia Airport for unknown reasons. Eight occupants were killed while 11 others were injured.

Crash of a PZL-Mielec AN-2 near Karsi

Date & Time: Aug 6, 1985
Type of aircraft:
Operator:
Registration:
CCCP-54960
Flight Phase:
MSN:
1G188-09
YOM:
1980
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in the region of Karsi after being caught by low level windshear. Occupant fate unknown.
Probable cause:
Loss of control due to windshear.

Crash of an Embraer EMB-110P1 Bandeirante in Villagarzón

Date & Time: Aug 4, 1985
Operator:
Registration:
HK-2593
Flight Phase:
Survivors:
Yes
Schedule:
Villa Garzón - Puerto Asís
MSN:
110-302
YOM:
1980
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
14
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
During the takeoff roll, the right engine failed and exploded. The crew abandoned the takeoff procedure when the aircraft went out of control. It veered off runway and collided with trees located about 1,600 meters from the end of the runway. The aircraft was destroyed while all 16 occupants were rescued, among them five were injured.
Probable cause:
Failure and explosion of the right engine during takeoff for unknown reasons.

Crash of a Lockheed L-1011-385 TriStar 1 in Dallas: 135 killed

Date & Time: Aug 2, 1985 at 1805 LT
Type of aircraft:
Operator:
Registration:
N726DA
Survivors:
Yes
Schedule:
Fort Lauderdale - Dallas - Los Angeles
MSN:
193C-1163
YOM:
1979
Flight number:
DL191
Crew on board:
11
Crew fatalities:
Pax on board:
152
Pax fatalities:
Other fatalities:
Total fatalities:
135
Captain / Total flying hours:
29300
Captain / Total hours on type:
3000.00
Copilot / Total flying hours:
6500
Copilot / Total hours on type:
1200
Aircraft flight hours:
20555
Aircraft flight cycles:
11186
Circumstances:
Delta Air Lines flight 191 was a regularly scheduled passenger flight between Fort Lauderdale, FL (FLL), and Los Angeles, CA (LAX), with an en route stop at the Dallas/Fort Worth International Airport, TX (DFW). Flight 191, a Lockheed L-1011 TriStar airplane, departed Fort Lauderdale on an IFR flight plan with 152 passengers and a crew of 11 on board at 15:10 EDT. The DFW Airport terminal weather forecast contained in the flightcrew's dispatch document package stated, in part, that there was a possibility of widely scattered rain showers and thunderstorms, becoming isolated after 20:00 CDT. The flight was uneventful until passing New Orleans, Louisiana. A line of weather along the Texas-Louisiana gulf coast had intensified. The flightcrew elected to change their route of flight to the more northerly Blue Ridge arrival route to avoid the developing weather to the south. This change necessitated a 10 to 15-minute hold at the Texarkana, Arkansas, VORTAC for arrival sequencing at the DFW Airport. At 17:35, the flightcrew received the following ATIS broadcast: "DFW arrival information romeo, two one four seven Greenwich, weather six thousand scattered, two one thousand scattered, visibility one zero, temperature one zero one, dew point six seven, wind calm, altimeter two niner niner two, runway one eight right one seven left, visual approaches in progress, advise approach control that you have romeo". Fort Worth Air Route Traffic Control Center (ARTCC) then cleared flight 191 to the Blue Ridge, Texas, VORTAC for the Blue Ridge Nine arrival, and to begin its descent. At 17:43:45, Fort Worth ARTCC cleared flight 191 to descend to 10,000 feet, gave it a 29.92 in Hg altimeter setting, and suggested that the flight turn to a heading-of 250 degrees "to join the Blue Ridge zero one zero radial inbound and we have a good area there to go through.!' The captain replied that he was looking at a "pretty good size" weather cell, "at a heading of two five five ... and I'd rather not go through it, I'd rather go around it one way or the other." Fort Worth ARTCC then gave the flight another heading and stated "when I can I'll turn you into Blue Ridge, it'll be about the zero one zero radial." At 17:46, the center cleared flight 191 direct to Blue Ridge and to descend to 9,000 feet, and flight 191 acknowledged receipt of the clearance. At 17:48, the captain told the first officer, "You're in good shape. I'm glad we didn't have to go through that mess. I thought sure he was going to send us through it." Three minutes later, the flight engineer said, "Looks like it's raining over Fort Worth." At 17:51, Forth Worth ARTCC instructed flight 191 to contact DFW Airport Approach Control. At 17:56:28, Regional Approach Control's Feeder East controller transmitted an all aircraft message which was received by flight 191. The message stated in part, "Attention, all aircraft listening... there's a little rainshower just north of the airport and they're starting to make ILS approaches ... tune up one oh nine one for one seven left." At 17:59, the first officer stated, "We're gonna get our airplane washed," and the captain switched to Regional Approach Control's Arrival Radar-1 (AR-1) frequency and told the controller that they were at 5,000 feet. At 18:00, the approach controller asked American Air Lines flight 351 if it was able to see the airport. (Flight 351 was two airplanes ahead of flight 191 in the landing sequence for runway 17L.) Flight 351 replied, "As soon as we break out of this rainshower we will." The controller then told flight 351 that it was 4 miles from the outer marker, and to join the localizer at 2,300 feet; the controller then cleared the flight for the ILS approach to runway 17L. At 18:00, the approach controller asked flight 191 to reduce its airspeed to 170 knots, and to turn left to 270 degrees; flight 191 then acknowledged receipt of the clearance. Flight 191 had been sequenced behind a Learjet 25 for landing on runway 17L. At 18:02, the approach controller told flight 191 that it was 6 miles from the outer marker, requested that it turn to 180 degrees to join the localizer at or above 2,300 feet, and stated, "Cleared for ILS one seven left approach." The flight acknowledged receipt of the transmission. At 18:03:03, the approach controller requested flight 191 "to reduce your speed to one six zero please," and the captain replied, "Be glad to." Thereafter, at 18:03:30, he broadcast, "And we're getting some variable winds out there due to a shower... out there north end of DFW." This transmission was received by flight 191. At 18:03:46, the approach controller requested flight 191 to slow to 150 KIAS, and to contact the DFW Airport tower. At 18:03:58, the captain, after switching to the tower's radio frequency, stated, "Tower, Delta one ninety one heavy, out here in the rain, feels good." The tower cleared the flight to land and informed it, "wind zero nine zero at five, gusts to one five." At 18:04:07, the first officer called for the before-landing check. The flightcrew confirmed that the landing gear was down and that the flaps were extended to 33 degrees, the landing flap setting. At 18:04:18, the first officer said, "Lightning coming out of that one." The captain asked, "What?" and the first officer repeated "Lightning coming out of that one." The captain asked, and at 18:04:23, the first officer replied, "Right ahead of us." Flight 191 continued descending along the final approach course. At 18:05:05 the captain called out "1,000 feet." At 18:05:19, the captain cautioned the first officer to watch his indicated airspeed and a sound identified as rain began. The captain then warned the first officer, "You're gonna lose it all of a sudden, there it is." The captain stated, "Push it up, push it way up." At 18:05:29, the sound of engines at high rpm was heard on the CVR, and the captain said "That's it." At 18:05:44, the Ground Proximity Warning System's (GPWS) "Whoop whoop pull up" alert sounded and the captain commanded "TOGA". The CVR recording ended at 18:05:58. Witnesses on or near State Highway 114 north of the airport saw flight 191 emerge from the rain about 1.25 miles from the end of runway 17L and then strike an automobile in the westbound lane of State Highway 114. Subsequent investigation showed that the airplane had touched down earlier and became airborne again before striking the automobile. After the plane struck the car and a light pole on the highway, other witnesses saw fire on the left side of the airplane in the vicinity of the wing root. The witnesses generally agreed that the airplane struck the ground in a left-wing-low attitude, and that the fuselage rotated counterclockwise after the left wing and cockpit area struck a water tank on the airport. A large explosion obscured the witnesses' view momentarily, and then the tail section emerged from the fireball, skidding backwards. The tail section finally came to rest on its left side with the empennage pointing south and was subsequently blown to an upright position by wind gusts. One hundred and thirty-four persons on board the airplane and the driver of the automobile which was struck by the airplane were killed in the accident; 27 persons on board the airplane and 1 rescue worker at the accident site were injured, 2 passengers on the airplane were uninjured.
Probable cause:
The flight crew's decision to initiate and continue the approach into a cumulonimbus cloud which they observed to contain visible lightning; the lack of specific guidelines, procedures and training for avoiding and escaping from low-level windshear; and the lack of definitive, real-time windshear hazard information. This resulted in the aircraft's encounter at low altitude with a microburst-induced, severe windshear from a rapidly developing thunderstorm located on the final approach course.
Final Report:

Crash of a Douglas DC-6B near Leticia: 80 killed

Date & Time: Jul 24, 1985 at 1700 LT
Type of aircraft:
Operator:
Registration:
FAC-902
Flight Phase:
Survivors:
No
Schedule:
Leticia - Bogotá
MSN:
45067
YOM:
1956
Country:
Crew on board:
4
Crew fatalities:
Pax on board:
76
Pax fatalities:
Other fatalities:
Total fatalities:
80
Circumstances:
Some aircraft operated by the Colombian Air Force were requisitioned to carry out regular schedule flights on behalf of Avianca because their pilots were striking. Few minutes after takeoff from Leticia-Alfredo Vásquez Cobo Airport, the pilot declared an emergency after the engine n°3 caught fire. While returning, fire spread to the right wing and the airplane went out of control and crashed in a jungle located 32 km north of the airport. The aircraft was totally destroyed and all 80 occupants were killed.
Probable cause:
Failure of the n°3 engine for unknown reasons.