Crash of a Piper PA-31-350 Navajo Chieftain in Williston Lake

Date & Time: Feb 7, 2000 at 1055 LT
Operator:
Registration:
C-GBFZ
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Mackenzie – Bear Valley – Tsay Keh – Mackenzie
MSN:
31-7752151
YOM:
1977
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
4500
Captain / Total hours on type:
1500.00
Circumstances:
The pilot of a Piper PA-31-350 Navajo Chieftain, serial number 31-7752151, encountered an area of heavy snow and reduced visibility while on a visual flight rules flight from Bear Valley, British Columbia, logging camp to Tsay Keh. The pilot was unable to maintain visual references and executed a 180-degree turn in an attempt to regain visual flight. Shortly after completing the turn, at about 1055 Pacific standard time, the aircraft collided with the ice on the Peace Reach Arm of Williston Lake, British Columbia. The pilot was the sole occupant of the aircraft and received serious injuries. There was no fire. The aircraft was destroyed during the collision.
Probable cause:
Findings as to Causes and Contributing Factors:
1. Weather conditions at the time and location of the occurrence were not suitable for visual flight.
2. While the pilot was attempting to regain visual flight, he allowed the aircraft to descend and it struck the ice surface. The weather and surface conditions were such that it would have been virtually impossible to visually detect the ice surface.
Other Finding:
1. In the absence of en route weather reporting facilities, the pilot could only estimate weather conditions based on the area forecast and informal reports received from lay personnel.
Final Report:

Crash of a Boeing 707-351C off Mwanza

Date & Time: Feb 3, 2000 at 1736 LT
Type of aircraft:
Operator:
Registration:
ST-APY
Flight Type:
Survivors:
Yes
Schedule:
Khartoum - Mwanza - Brussels
MSN:
19412
YOM:
1967
Flight number:
TRT310
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
19000
Aircraft flight hours:
51200
Aircraft flight cycles:
21600
Circumstances:
The aircraft was departed Khartoum for a flight to Mwanza where it was supposed to pick up a cargo of 38 tonnes of fish fillet from Vick Fish Processors for delivery in Europe. When it went dark en route to Mwanza, the radio altimeter integral light was found to be unserviceable. The crew were not able to fix the problem and the continued using the FMS. The crew contacted Mwanza tower at 16:58 and were being advised that there was no power at the airport and that efforts were being made to use a standby generator. Further information passed on the crew reportedly included VOR, DME and NDB all unserviceable, weather: wind calm, 8 km visibility, temperature 25deg C and QNH 1015. After holding for 10 minutes, the airport generator came on and the runway lights went on. The first officer, who was pilot flying, started a visual runway 12 approach. When well established on finals with full landing configuration, the captain told the f/o that he was too low, and a few seconds later he told the f/o he was too high. Both the captain and the flight engineer then told the f/o to go around. The f/o overshot and climbed to 5500 feet on the downwind leg. Turning on the left base the captain remarked that the turn was too tight: ".. I will do a 360-degree turn to the right and position you finals". The captain thus took over control and started a right turn at 4400 feet. Just before completing the turn, the f/o said: "do not go down anymore, the altimeter is reading 4100 feet". Almost aligned with the runway, the f/o took over control again. At that same moment the aircraft bounced 2 or 3 times yawing to the left and came down to a halt in the middle of the lake.

Crash of a Beechcraft D18S off Bimini

Date & Time: Feb 2, 2000 at 1407 LT
Type of aircraft:
Operator:
Registration:
N122V
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Miami - Nassau
MSN:
A-828
YOM:
1952
Location:
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On February 2, 2000, about 1407 eastern standard time, a Beech D18S, N122V, registered to South Florida Aircraft Leasing, Inc., operated by Florida Air Cargo, Inc., was ditched in the Atlantic Ocean, approximately 47 miles east of Bimini, Bahamas. Visual meteorological conditions prevailed at the time and a visual flight rules (VFR) flight plan was filed for the 14 CFR Part 135 non-scheduled, international, cargo flight. The airplane was substantially damaged and the commercial-rated pilot was not injured, one passenger sustained minor injuries. The flight originated about 1305 from the Opa Locka Airport, Opa Locka, Florida. The pilot stated that the flight departed with all five fuel tanks full of fuel and departed with the left fuel selector positioned to the "main tank" position. The flight continued and approximately 10 minutes after takeoff, he switched the left fuel selector to the auxiliary position and remained on that tank for approximately 35 minutes. When the flight was approximately 20 miles east of Bimini, he switched the left fuel selector to the main tank position where it remained for 5 minutes before he added climb power. While about 45 miles east of Bimini, climbing through 2,300 feet with a good rate of climb, the left manifold pressure dropped to 27 inches and the propeller rpm dropped to 1,300. He turned to fly to Bimini, broadcast a mayday call, and reported no unusual vibration; the fuel pressure and oil pressure gauges indicated normal. He repositioned the fuel selector but the left engine would not restart. He then feathered the left propeller and secured the engine but was unable to maintain altitude with full power applied to the right engine. The airplane was ditched in a slight left wing low attitude and the left engine separated from the airframe. Both occupants exited the airplane, remained in the water for 47 minutes, then were spotted by a U.S. Coast Guard Falcon airplane. They were rescued by a pleasure boat and transported to the east coast of Florida.

Crash of a McDonnell Douglas MD-83 off Anacapa Island: 88 killed

Date & Time: Jan 31, 2000 at 1620 LT
Type of aircraft:
Operator:
Registration:
N963AS
Flight Phase:
Survivors:
No
Schedule:
Puerto Vallarta - San Francisco - Seattle - Anchorage
MSN:
53077
YOM:
1992
Flight number:
AS261
Crew on board:
5
Crew fatalities:
Pax on board:
83
Pax fatalities:
Other fatalities:
Total fatalities:
88
Captain / Total flying hours:
10460
Captain / Total hours on type:
4150.00
Copilot / Total flying hours:
8140
Copilot / Total hours on type:
8060
Aircraft flight hours:
26584
Aircraft flight cycles:
14315
Circumstances:
On January 31, 2000, about 1621 Pacific standard time, Alaska Airlines, Inc., flight 261, a McDonnell Douglas MD-83, N963AS, crashed into the Pacific Ocean about 2.7 miles north of Anacapa Island, California. The 2 pilots, 3 cabin crewmembers, and 83 passengers on board were killed, and the airplane was destroyed by impact forces. Flight 261 was operating as a scheduled international passenger flight under the provisions of 14 Code of Federal Regulations Part 121 from Lic Gustavo Diaz Ordaz International Airport, Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport, Seattle, Washington, with an intermediate stop planned at San Francisco International Airport, San Francisco, California. Visual meteorological conditions prevailed for the flight, which operated on an instrument flight rules flight plan.
Probable cause:
A loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlines' insufficient lubrication of the jackscrew assembly. Contributing to the accident were Alaska Airlines' extended lubrication interval and the Federal Aviation Administration's (FAA) approval of that extension, which increased the likelihood that a missed or inadequate lubrication would result in excessive wear of the acme nut threads, and Alaska Airlines' extended end play check interval and the FAA's approval of that extension, which allowed the excessive wear of the acme nut threads to progress to failure without the opportunity for detection. Also contributing to the accident was the absence on the McDonnell Douglas MD-80 of a fail-safe mechanism to prevent the catastrophic effects of total acme nut thread loss.
Final Report:

Crash of a Short 360 in Marsa al Burayqah: 22 killed

Date & Time: Jan 13, 2000 at 1238 LT
Type of aircraft:
Operator:
Registration:
HB-AAM
Survivors:
Yes
Schedule:
Tripoli - Marsa el Brega
MSN:
3763
YOM:
1990
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
38
Pax fatalities:
Other fatalities:
Total fatalities:
22
Captain / Total flying hours:
8814
Captain / Total hours on type:
3840.00
Copilot / Total flying hours:
10422
Copilot / Total hours on type:
1950
Aircraft flight hours:
7138
Circumstances:
The aircraft took off at 0929 utc from Tripoli-Intl Airport with two flight crew, one cabin crew and 38 passengers of which three children and one infant with 3,200 lbs of fuel on board. The aircraft flew on the route Tripoli - Beniwalid - Tilal direct to Marsa Brega. During flight, the crew have noticed fuel imbalance so they did a cross feeding until fuel balanced at 11:17:12 utc. At 11:25:51 utc, the aircraft started to descend from FL070 at 40 nm from Marsa Brega. At 11:36:57 utc, the left engine flamed out and the captain asked his f/o to confirm left engine failure at 11:37:27 utc. The f/o confirmed the left engine failure at 11:37:28 utc. The right engine flamed out at 11:37:39 utc. The captain asked his f/o to inform soc operation at Marsa Brega about the two engines failure and his decision to ditch at 11:37:57 utc. The captain asked his f/o to relight the engine at 11:38:05 utc. The GPWS activated since the aircraft was in an unsafe situation. At 11:38:34 utc, the aircraft ditched in the sea at 30 23.457 N 019 28.953 E. Both pilots and 17 other occupants were rescued while 22 other people including the cabin crew were killed. The aircraft was destroyed. Most of the passengers were employees of the Sirte Oil Company and working at the Marsa Brega Oil Complex. On board were 15 Libyans (among them both pilots), 13 British, two Canadians, three Indians, three Croatians, three Philippines, one Pakistan and one Tunisian, the cabin crew. Operated by the Libyan Sirte Oil Company, the aircraft was owned by Avisto, a Swiss operator.
Probable cause:
The following findings were identified:
- The crew was properly certificated and qualified for the flight.
- There was no evidence of factors which would have detracted from the crews physical ability to operate the aircraft,
- The aircraft was properly certificated.
- The certificate of airworthiness has no expiry date according to Swiss regulations and considered to be valid and of transport category.
- The certificate of maintenance was valid.
- The insurance policy certificate was valid.
- The aircraft weight and CofG were within prescribed limits.
- The aircraft flew five sectors on that day before the crash flight.
- The emergency doors were not used except the cockpit emergency hatch.
- Fuel samples analyzed and found up to jet a1 specification.
- The aircraft was not in landing configuration, landing gear up and flaps up.
- The passengers were not informed about the aircraft ditching.
- The tail unit and the aircraft nose has destroyed which led the aircraft to sink in few minutes.
- The aircraft was equipped with a GPWS system.
- The aircraft maintenance schedule was not approved by FOCA.
Probable causes:
- Melting of ice formed at engines intake resulted in ware ingestion and both engine flame out.
- The flight crew failed to operate the engine anti-icing system.
- The flight crew were busy with a discussion not relevant to their flight of the aircraft.
Final Report:

Crash of a PZL-Mielec AN-28 off Inebolu: 6 killed

Date & Time: Dec 29, 1999 at 1700 LT
Type of aircraft:
Operator:
Registration:
3C-JJI
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Kiev - Tehran
MSN:
1AJ004-14
YOM:
1988
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
On a ferry flight from Kiev to Tehran, while in cruising altitude over the Black Sea, the crew reported an unexpected situation and requested a clearance to divert to Ankara Airport. Shortly later, the twin engine aircraft went out of control and crashed in the sea about 50 km off Inebolu. Few debris were found floating on water but the wreckage was not found. All six occupants were killed.
Probable cause:
Due to lack of evidences, the exact cause of the accident could not be determined.

Crash of a De Havilland DHC-2 Beaver near Washougal: 4 killed

Date & Time: Nov 27, 1999 at 1455 LT
Type of aircraft:
Registration:
N666XT
Flight Phase:
Flight Type:
Survivors:
No
MSN:
826
YOM:
1955
Crew on board:
1
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
2400
Aircraft flight hours:
15540
Circumstances:
Witnesses reported that following takeoff from a river, the aircraft climbed to approximately 100 to 400 feet above the water, then initiated a left turn of approximately 45 degrees bank. The majority of the witnesses reported that after the aircraft had turned about 180 degrees, its nose abruptly dropped and it impacted the water. Witnesses did not report observing any evidence of problems with the aircraft before impact, and did not report hearing any abnormal engine sounds or sudden changes in engine pitch. Upon water impact, the aircraft went inverted and its cabin submerged. Efforts by witnesses to gain entry to the aircraft cabin to render assistance were unsuccessful due to aircraft damage. Rescue divers found all occupants deceased in the aircraft upon arrival, but were able to remove the two rear-seat victims without removing any passenger restraints. Autopsies disclosed that all four aircraft occupants had drowned. Investigators did not find any evidence of pre-impact aircraft or engine malfunctions during post-accident examinations of the wreckage, but did find that a cabin entry door was jammed shut due to impact damage, and that the range of travel of both pilot doors was restricted by damaged aircraft components.
Probable cause:
The pilot's failure to ensure attainment of adequate airspeed prior to initiating a steep turn at low altitude, resulting in an accelerated stall. A factor contributing to the occurrence of the accident was the aircraft's low altitude. Factors contributing to the severity of the accident included a water impact, and jammed/restricted doors due to impact damage resulting in degraded aircraft evacuation capability.
Final Report:

Crash of a Piper PA-60 Aerostar (Ted Smith 600) off Avalon: 1 killed

Date & Time: Nov 21, 1999 at 1015 LT
Registration:
N97CC
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Fullerton - Fullerton
MSN:
60-0154-068
YOM:
1974
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
1710
Captain / Total hours on type:
951.00
Aircraft flight hours:
4199
Circumstances:
The pilot/owner was performing a post maintenance check flight about 20 miles off shore. He was receiving visual flight advisories from a terminal radar approach facility while in level flight about 4,900 feet msl. Subsequently, the airplane started slowing then descending in a right spiral, and radar contact was lost about 1,000 feet msl. The pilot's body was recovered from the ocean. According to the autopsy report, the pilot had experienced sudden cardiac death secondary to an acute myocardial infarction due to atherosclerotic coronary artery disease. Tramadol, a painkiller not approved by the FAA for flight, was detected in a drug screen and may have masked the chest pain.
Probable cause:
The pilot's in-flight loss of control due to physical incapacitation from sudden cardiac death secondary to an acute myocardial infarction.
Final Report:

Crash of a Beechcraft 200 Super King Air in Chicago: 3 killed

Date & Time: Nov 11, 1999 at 2020 LT
Operator:
Registration:
N869
Flight Phase:
Survivors:
No
Schedule:
Chicago - South Bend
MSN:
BB-174
YOM:
1976
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
18000
Captain / Total hours on type:
4536.00
Aircraft flight hours:
8636
Circumstances:
Shortly after being cleared for takeoff on runway 18 (3,899 feet by 150 feet, dry concrete) at Merrill C. Meigs Field, Chicago, Illinois, the airplane impacted into Lake Michigan, approximately 300 feet south of the end of the runway. The tower controller said that at the 3/4 field point, the airplane had not rotated. 'All I can see are lights [from the airplane]. At the point where he would have been at the end of the runway, [I] lost the lights.' A witness on the airport said that when the airplane went by, it 'didn't sound like most King Airs do at that point.' There was a pulsating sound, but it was not heavy. The witness said that the airplane was 'bouncing up and down on the [gear] struts, and wasn't coming off the ground.' NTSB Materials examination of the pilot's control yoke showed that there were small distortions in the holes of the column and the rod where the control lock would be inserted. A small crack was observed around 1/4 of the control lock rod hole. The control lock was a substitute for the original airplane equipment. The examination of the control lock showed 'several shiny scratches ... parallel to the length of the pin.' A small deformation was observed near the top of the pin part of the control lock. The company flight department's third pilot said that when they flew the airplane, they always placed the control lock in the pilot's side cockpit wall pocket, along with a car key and a remote hanger door opener. The car key and the door opener were found in the wall pocket during the on-scene investigation. The control lock was
recovered from the lake, 7 days later.
Probable cause:
On ground collision with the lake for undetermined reasons.
Final Report:

Crash of a Boeing 767-366ER in the Atlantic Ocean: 217 killed

Date & Time: Oct 31, 1999 at 0152 LT
Type of aircraft:
Operator:
Registration:
SU-GAP
Flight Phase:
Survivors:
No
Schedule:
Los Angeles – New York – Cairo
MSN:
24542
YOM:
1989
Flight number:
MS990
Country:
Region:
Crew on board:
15
Crew fatalities:
Pax on board:
202
Pax fatalities:
Other fatalities:
Total fatalities:
217
Captain / Total flying hours:
14384
Captain / Total hours on type:
6356.00
Copilot / Total flying hours:
12538
Copilot / Total hours on type:
5191
Aircraft flight hours:
33354
Aircraft flight cycles:
7594
Circumstances:
EgyptAir Flight 990 departed Los Angeles International Airport, destined for Cairo, with a scheduled intermediate stop at New York-JFK. The aircraft landed at JFK about 23:48 EDT and arrived at the gate about 00:10 EDT. Two designated flight crews (each crew consisting of a captain and first officer) boarded the aircraft at JFK. The aircraft taxied to runway 22R and was cleared for takeoff at 01:19. Shortly after liftoff, the pilots of EgyptAir flight 990 contacted New York Terminal Radar Approach (and departure) Control (TRACON). New York TRACON issued a series of climb instructions and, at 01:26, instructed the flight to climb to FL230 and contact New York Air Route Traffic Control Center (ARTCC). At 01:35, New York ARTCC instructed EgyptAir flight 990 to climb to FL330 and proceed directly to DOVEY intersection. About 01:40 the relief first officer suggested that he relieve the command first officer at the controls. The command first officer agreed and left the flightdeck. The airplane leveled at FL330 four minutes later. At 01:48, the command captain decided to go to the toilet and left the flightdeck. At 01:48:30, about 11 seconds after the captain left the cockpit, the CVR recorded an unintelligible comment. Ten seconds later, the relief first officer stated quietly, "I rely on God." There were no sounds or events recorded by the flight recorders that would indicate that an airplane anomaly or other unusual circumstance preceded the relief first officer's statement. At 01:49:18, the CVR recorded the sound of an electric seat motor and 27 seconds later the autopilot was disconnected. At 01:49:48, the relief first officer again stated quietly, "I rely on God." At 01:49:53, the throttle levers were moved from their cruise power setting to idle, and, one second later, the FDR recorded an abrupt nose-down elevator movement and a very slight movement of the inboard ailerons. Subsequently, the airplane began to rapidly pitch nose down and descend. Between 0149:57 and 0150:05, the relief first officer quietly repeated, "I rely on God," seven additional times. During this time, as a result of the nose-down elevator movement, the airplane's load factor decreased from about 1 to about 0.2 G (almost weightlessness). Then the elevators started moving further in the nose-down direction. Immediately thereafter the captain entered the flightdeck and asked loudly, "What's happening? What's happening?". As he airplane's load factor reached negative G loads (about -0.2 G) the relief first officer stated for the tenth time, "I rely on God." At 01:50:08, as the airplane exceeded its maximum operating airspeed (0.86 Mach), a master warning alarm began to sound and the relief first officer stated quietly for the eleventh and final time, "I rely on God," and the captain repeated his question, "What's happening?" At 0150:15, as the airplane was descending through about 27,300 feet the airplane's rate of descent began to decrease. About 6 seconds later the left and right elevator surfaces began to move in opposite directions. The engine start lever switches for both engines then moved from the run to the cutoff position. At 01:50:24 the throttle levers started to move from their idle position to full throttle, and the speedbrake handle moved to its fully deployed position. The captain again asked "What is this? What is this? Did you shut the engine(s)?" At 01:50:26, the captain stated, "Get away in the engines ... shut the engines". The relief first officer replied "It's shut". Between 01:50:31 and 01:50:37, the captain repeatedly stated, "Pull with me." However, the elevator surfaces remained in a split condition (with the left surface commanding nose up and the right surface commanding nose down) until the FDR and CVR stopped recording. at 0150:36.64 and 0150:38.47, respectively. The height estimates based on primary radar data from the joint use FAA/U.S. Air Force (USAF) radar sites indicated that the airplane's descent stopped about 01:50:38 and that the airplane subsequently climbed to about 25,000 feet msl and changed heading from 80º to 140º before it started a second descent, which continued until the airplane impacted the ocean.
Probable cause:
The National Transportation Safety Board determines that the probable cause of the EgyptAir flight 990 accident is the airplane's departure from normal cruise flight and subsequent impact with the Atlantic Ocean as a result of the relief first officer's flight control inputs. The reason for the relief first officer's actions was not determined.
Final Report: