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Crash of a Lockheed L-188CF Electra in Salt Lake City: 3 killed

Date & Time: Nov 18, 1979 at 0456 LT
Type of aircraft:
Operator:
Registration:
N859U
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Ogden-Hill - Nellis
MSN:
2016
YOM:
1960
Flight number:
3N18
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
20000
Captain / Total hours on type:
3140.00
Copilot / Total flying hours:
3140
Copilot / Total hours on type:
2715
Aircraft flight hours:
41764
Circumstances:
The four engine airplane departed Ogden-Hill AFB at 0445LT on a cargo flight to Nellis AFB on behalf of the USAF, carrying three crew members and 27,552 lbs of cargo. While climbing from 12,000 to 13,000 feet, the flight indicated to Salt Lake departure control that they had lost all electrical power, the flight requested no-gyro vectors to visual flight conditions and clearance for an immediate descent to a lower altitude. During the descent, the aircraft attained a high airspeed and high rate of descent and disintegrated in flight. The three crewmembers were killed and the aircraft was destroyed. The wreckage was dispersed along a path about 1 1/2 miles long on an abandoned airport located about 4 nmi south of the Salt Lake City International Airport.
Probable cause:
The National Transportation Safety Board determines that the probable cause of this accident was a progressive failure in the aircraft's electrical system leading to the disabling or erratic performance of some critical flight instruments and flight instrument lighting while the flight was operating in night instrument meteorological conditions. As a result of these conditions, the flightcrew could not resolve the instrumentation anomalies to determine proper aircraft attitude reference, and became disoriented and lost control of the aircraft. The crew's efforts to regain control of the aircraft imDOSed aerodynamic loads which exceeded design limits of the ahraft and caused it to break up in flight.
Final Report:

Crash of a Lockheed L-188CF Electra at Ogden-Hill AFB

Date & Time: Mar 19, 1972 at 0007 LT
Type of aircraft:
Operator:
Registration:
N851U
Flight Type:
Survivors:
Yes
Schedule:
Tucson - Ogen-Hill
MSN:
2001
YOM:
1959
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
15000
Captain / Total hours on type:
2500.00
Circumstances:
The crew was completing a ferry flight from Tucson to Ogden-Hill AFB. On approach, while descending to a height of 7,000 feet, the crew got a n°2 prop low oil warning. The engine was shut down but the crew was unable to feather the propeller for unknown reason. Despite the situation, the pilot-in-command was able to continue the approach and landed safely on runway 32. After touchdown, the n°2 prop separated from its mount and debris punctured the n°1 fuel tank. The airplane caught fire and came to rest in flames after a course of 4,000 feet. All three crew members escaped uninjured while the aircraft was partially destroyed by fire.
Probable cause:
Failure of a powerplant and propeller system on approach. The following factors were reported:
- Pressure too low,
- Improper in-flight decisions,
- Inadequate supervision of flight on part of the pilot-in-command,
- Improper use of equipment,
- Improper emergency procedures,
- Fire in engine,
- Low oil level light illuminated and prop oversped during feathering,
- Insufficient oil for unknown reason and engine oil not restored.
Final Report:

Crash of a Lockheed L-188CF Electra at Ogden-Hill AFB

Date & Time: Aug 24, 1970 at 0708 LT
Type of aircraft:
Operator:
Registration:
N855U
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Ogden-Hill – Mountain Home – Spokane – Great Falls – Minot – Grand Forks
MSN:
2012
YOM:
1959
Flight number:
UV9524
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
16395
Captain / Total hours on type:
1022.00
Circumstances:
The airplane was engaged in a cargo flight from Ogden-Hill AFB to Grand Forks AFB, North Dakota, with intermediate stops in Mountain Home, Fairchild AFB (Spokane), Great Falls and Minot, carrying various equipment for the US Army. After liftoff from runway 32, while climbing, the pilot raised the landing gear when the airplane pitched down to 15°. It lost height and struck the ground 8,200 feet past the runway end, slid for about 2,600 feet before coming to rest in flames. All three crew members were injured and the aircraft was destroyed.
Probable cause:
Loss of control during initial climb caused by an inadequate preflight preparation on part of the crew who failed to follow the approved procedures. The following contributing factors were reported:
- Inadequate preflight on part of the flight engineer,
- Lack of action on part of the flying crew,
- Pressure to low on the hydraulic system, hydraulic pumps,
- Nosed over after takeoff, unable to control pitch,
- One hydraulic pump used while the company requested use of all three pumps for takeoff.
Final Report:

Crash of a Douglas DC-6A on Mt Rainier: 5 killed

Date & Time: Apr 23, 1965 at 1423 LT
Type of aircraft:
Operator:
Registration:
N6541C
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Seattle – Ogden-Hill
MSN:
45369/984
YOM:
1958
Flight number:
AAX1422A
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Captain / Total flying hours:
6861
Captain / Total hours on type:
4088.00
Copilot / Total flying hours:
17310
Copilot / Total hours on type:
5214
Aircraft flight hours:
18315
Circumstances:
On April 23, 1965, at 1423 P.s.t., an AAXICO Airlines, Inc., Douglas DC-6A, N6541C, crashed on the west slope of Mt. Rainier, Washington. The accident site was 40.2 nautical miles southeast of the Seattle ‘VORTAC, on the 125° radial, at an elevation of 10,200 feet m.s.l. The aircraft was being operated as Logair Flight 1422A, on a Visual Flight Rules (VFR) flight from Boeing Field, Seattle, Washington, to Hill Air Force Base (AFB), Utah. All five crew members received fatal injuries as a result of the crash. The flight was attempting to obtain an Instrument Flight Rules (IFR) clearance when it struck the snow covered glacier. The aircraft was destroyed by impact. There was no fire.
Probable cause:
The Board determines that the probable cause of this accident was the improper correlation of the aircraft position with respect to obstructing terrain while continuing the flight on a VFR flight plan in instrument weather conditions.
Final Report:

Crash of a Curtiss C-46A-20-CU Commando near Nederland: 3 killed

Date & Time: Dec 7, 1963 at 1919 LT
Type of aircraft:
Operator:
Registration:
N609Z
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Lowry - Ogden
MSN:
26571
YOM:
1943
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
13527
Captain / Total hours on type:
10128.00
Aircraft flight hours:
11694
Circumstances:
The crew was conducting a cargo flight from Lowry AFB to Ogden-Hill AFB on behalf of the US Air Force. While cruising over the Rockies at an altitude of 12,500 feet, the crew encountered poor weather conditions when the airplane struck the slope of mountain and crashed in flames. SAR operations were initiated but eventually suspended few days later as no trace of the airplane nor the three occupants was found. The wreckage was located on 8 July 1964. All three occupants were killed and the aircraft was destroyed by fire.
Probable cause:
It was determined that the probable cause of the accident was an improper in-flight decision or planning on part of the flying crew who exercised poor judgment. The weather briefing provided to the crew by the military personnel prior to takeoff at Lowry AFB was inadequate, which was considered as a contributing factor.
Final Report:

Crash of a Convair C-131E at Ogden-Hill AFB: 1 killed

Date & Time: Feb 4, 1963
Operator:
Registration:
55-4758
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Ogen-Hill - Norton
MSN:
345
YOM:
1956
Crew on board:
2
Crew fatalities:
Pax on board:
18
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
Shortly after rotation, while in initial climb, one of the engine failed. The crew feathered the propeller and the captain decided to make an emergency landing. The aircraft belly landed and slid for several before coming to rest in flames in a gully located 4 miles southeast of the airfield. A passenger died while 19 other occupants were rescued. The aircraft was destroyed.
Probable cause:
Engine failure during initial climb.

Crash of a Curtiss C-46F-1-CU Commando in Plain City: 2 killed

Date & Time: Oct 15, 1960
Type of aircraft:
Operator:
Registration:
N1300N
Flight Type:
Survivors:
No
Schedule:
Rapid City - Ogden-Hill
MSN:
22481
YOM:
1945
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
On approach to Ogden-Hill AFB, at an altitude of 6,500 feet, the aircraft went out of control, dove into the ground and crashed in a field located in Plain City, about 10 miles from the airbase. The aircraft was destroyed and both crew members were killed.
Probable cause:
Fatigue of the right wing lower attach angle bolts resulting in an in-flight wing failure.

Crash of a Fairchild C-123B-13-FA Provider near Empire: 9 killed

Date & Time: Sep 11, 1960 at 0830 LT
Type of aircraft:
Operator:
Registration:
55-4539
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Pope - Lowry - Hill - Hamilton
MSN:
20200
YOM:
1955
Flight number:
USAF998
Location:
Crew on board:
6
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
9
Circumstances:
The crew was performing a flight from Pope AFB to Hamilton AFB with intermediate stops at Lowry AFB and Ogden-Hill AFB. The aircraft departed Lowry AFB at 0801LT. The crew completed to successives turns to the left then to the right and continued heading 270°. Few minutes later, the airplane entered a box canyon and was unable to gain sufficient height when it struck the slope of Mt Vasquez Peak (3,414 meters high). The aircraft was destroyed and all nine occupants were killed.
Probable cause:
It was determined that the accident was the consequence of wrong decision on part of the pilot who violated paragraph 12A (4), AF Reg 60-16 and entered a box canyon with insufficient altitude and lateral clearance from which to effect a safe recovery. The following contributing factors were reported:
- A breach of air discipline, in that the pilot operated his aircraft for a distance of thirty-two miles at altitudes ranging from 500 feet down to 50 feet above the immediate terrain, in violation of Para 12A (3) AF regs 60-16,
- Weather conditions may have been a contributing factor in that the forecast winds and turbulence indicate a probable adverse mountain wave effect on the aircraft immediately prior to impact.

Crash of a Curtiss C-46F-1-CU Commando near Fort Collins: 2 killed

Date & Time: Nov 16, 1958
Type of aircraft:
Operator:
Registration:
N1301N
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Denver - Ogden-Hill
MSN:
22480
YOM:
1945
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
The crew was completing a cargo flight from Denver-Stapleton to Ogden-Hill AFB, Utah. En route, while cruising at an altitude of 8,700 feet in poor weather conditions, the airplane struck the slope of a mountain located near Fort Collins. The wreckage was found few hours later and both pilots were killed. At the time of the accident, weather was poor with icing conditions and turbulences. It is believed the airplane lost altitude until it impacted terrain.

Crash of a Fairchild C-123B-12-FA Provider near Payette: 19 killed

Date & Time: Oct 9, 1958 at 1825 LT
Type of aircraft:
Operator:
Registration:
55-4521
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Ogden-Hill - McChord
MSN:
20182
YOM:
1954
Location:
Crew on board:
5
Crew fatalities:
Pax on board:
14
Pax fatalities:
Other fatalities:
Total fatalities:
19
Circumstances:
The crew was returning to his base in McChord after he took part to an airshow at Ogden-Hill AFB, supplying the Thunderbird's team. While flying in cruising altitude, the airplane went out of control, dove into the ground and crashed in a field located seven miles east of Payette. The airplane was totally destroyed upon impact and all 19 occupants were killed, among them two civilians.
Probable cause:
It is believed that the loss of control was the consequence of an in-flight collision with a flock of birds, maybe goose.