Crash of a Rockwell Gulfstream 695A Jetprop 1000 in Checotah: 2 killed

Date & Time: Oct 9, 1984 at 1140 LT
Operator:
Registration:
N81502
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Bethany - Bethany
MSN:
695-96000
YOM:
1981
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
11098
Captain / Total hours on type:
447.00
Aircraft flight hours:
778
Circumstances:
The pilot allowed the aircraft to stall at an altitude which was too low to effect recovery before ground impact occurred. He was in the process of performing VMC test and maximum performance single engine climbs during the test flight. Witness description of the aircrafts movements at the beginning of the accident sequence suggests that the VMC test were in progress immediately before the accident occurred. Both occupants were killed.
Probable cause:
Occurrence #1: loss of control - in flight
Phase of operation: maneuvering
Findings
1. (c) airspeed - not maintained - pilot in command
2. (c) stall/spin - inadvertent - pilot in command
----------
Occurrence #2: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Final Report:

Crash of a Cessna 421C Golden Eagle III in Altus: 8 killed

Date & Time: Sep 4, 1983 at 1607 LT
Registration:
N111FN
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Altus - Bartlesville
MSN:
421C-0321
YOM:
1977
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
8
Captain / Total flying hours:
7620
Captain / Total hours on type:
269.00
Aircraft flight hours:
1505
Circumstances:
The pilot initiated a takeoff on a hot afternoon with 7 passengers on board. Shortly after liftoff, two witnesses observed what they described as a puff of black smoke from the right engine. According to witnesses, the aircraft turned to the left before crossing the departure end of the runway at low altitude and low speed. Subsequently, the aircraft rolled rapidly to the left and impacted the ground in a near flat attitude, with a high rate of sink, and sufficient forward velocity to slide or bounce about 70 feet before coming to rest and burning. An exam of the wreckage, including teardowns of both engines, revealed no pre-impact/mechanical malfunction or failure. The aircraft was estimated to be 80 lbs below its max design gross weight. Its center of gravity was computed to be 1.45 inches aft of its rear limit. The temperature was 101° and the density altitude was about 4,000 feet. All eight occupants were killed.
Probable cause:
Occurrence #1: loss of engine power
Phase of operation: takeoff - initial climb
Findings
1. (c) reason for occurrence undetermined
----------
Occurrence #2: loss of control - in flight
Phase of operation: maneuvering - turn to landing area (emergency)
Findings
2. (c) airspeed (VMC) - not maintained - pilot in command
----------
Occurrence #3: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Findings
3. (c) aircraft handling - not maintained - pilot in command
Final Report:

Crash of a Rockwell Grand Commander 680F in Norman: 2 killed

Date & Time: Jun 28, 1983 at 0819 LT
Registration:
N6139X
Flight Type:
Survivors:
No
Schedule:
Dallas – Norman – Wichita
MSN:
680-0920-2
YOM:
1960
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
The aircraft crashed after starting a go-around or aborted landing at Norman, OK. The aircraft was on a cross-country flight from Dallas to Wichita. There was no radio communication with the aircraft after it was cleared to land. The approach looked ok but on short final the aircraft suddenly turned right, leveled then entered a steep climbing right turn and continue to roll until inverted then pitched nose down until crashing. The pilot in the right seat had reportedly worked late the night before installing what appeared to be an auxiliary fuel system in the cabin. The aircraft had just been sold and the identity and location of the owner was not established. No one claimed the wreckage. Evidence revealed that both propellers were rotating at high rpm at impact. The fire after impact burned most intensely and persistently in the center of the cabin where the remains of what appeared to be an auxiliary fuel system were found. No pre-impact malfunctions or failures were found. Both occupants were killed.
Probable cause:
Occurrence #1: loss of control - in flight
Phase of operation: go-around (VFR)
Findings
1. (c) reason for occurrence undetermined - pilot in command
----------
Occurrence #2: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Final Report:

Crash of a Cessna 421B Golden Eagle II near Afton: 1 killed

Date & Time: Sep 24, 1982 at 2350 LT
Operator:
Registration:
N8019Q
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Alton - Yukon
MSN:
421B-0019
YOM:
1970
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
3750
Aircraft flight hours:
2200
Circumstances:
At about 1930 cdt, the aircraft departed Yukon, OK on a direct flight to Alton, IL. It landed at Alton at about 2200 cdt, and about 10 minutes later, it departed on a return flight to Yukon. Before departing Alton, the pilot stated that he would refuel at Springfield, MO while on the return trip. However, there was no indication that the plane was refueled at Springfield. Subsequently, the aircraft crashed near Afton, OK at about 2350 cdt. A witness stated that he had seen the aircraft circling back and forth across the highway at low altitude, then it went into a left bank and nose dived into the ground. An investigation revealed the aircraft impacted in a near level attitude, but in a steep angle of descent. The fuel tanks were found to be empty. There was no evidence of fuel spillage on the ground, except near the right tip tank. The left and right fuel selectors were found positioned to the right main tank. The pilot, sole on board, was killed.
Probable cause:
Occurrence #1: loss of engine power(total) - nonmechanical
Phase of operation: approach
Findings
1. (f) light condition - dark night
2. (c) in-flight planning/decision - improper - pilot in command
3. (c) fluid,fuel - starvation
4. (c) precautionary landing - delayed - pilot in command
----------
Occurrence #2: loss of control - in flight
Phase of operation: approach
Findings
5. (c) airspeed(vmc) - not maintained - pilot in command
6. (c) stall - inadvertent - pilot in command
----------
Occurrence #3: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Final Report:

Crash of a Learjet 24 near Felt: 3 killed

Date & Time: Oct 1, 1981 at 1502 LT
Type of aircraft:
Operator:
Registration:
N44CJ
Flight Phase:
Survivors:
No
Schedule:
Thermopolis - Casper - McAllen
MSN:
24-146
YOM:
1967
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
6404
Captain / Total hours on type:
28.00
Copilot / Total flying hours:
17500
Aircraft flight hours:
7412
Circumstances:
While on a return flight to their company headquarters in McAllen, Texas, from Thermopolis, Wyoming, the president of Sky Train Air Inc., the chief pilot, and another company pilot stopped in Casper, Wyoming, for fuel. The lineman noted a fuel imbalance when 320 gallons of fuel were added to the left wing and only 260 gallons of fuel were added to the right wing tanks. According to the lineman, the crew was aware of the imbalance. A total of 585 gallons of Jet-A with Prist (anti-ice additive) was supplied which filled the wing tanks to capacity. No fuel transferring was necessary during the refueling. The lineman stated that he believed the fuselage tank was full because the nosegear strut was extended 6 to 12 inches. We stated a ground power unit was used to start the engines and he did not notice any difficulties with the aircraft during the crew's preflight checks. The flight plan filed by the president, reported to be the pilot-in-command, as follows: IFR to McAllen, Texas, at Flight Level (FL) 450, true airspeed 450 knots, Airway J170 to Denver, J17 to Amarillo, J17 to San Antonio, J25 to Corpus Christi, direct McAllen; time en route 2 hours 20 minutes with 3 hours 40 minutes of fuel on board. A weather briefing was not given to him because he had reported that he already had the weather information. The crew called the Casper Air Traffic Control Tower for taxi clearance at 1352:08 and began its departure from runway 21 at 1357:02. At 1449:39, while in cruise flight at FL 450, the flightcrew made initial radio contact with Sector 71 of the Albuquerque Air Route Traffic Control Center (ARTCC). The aircraft was "squawking" transponder code 0670. About 1458, a new controller took over the radar and data positions. At 1459:36, he issued a frequency change to which the crew did not respond. At the time, the controller noticed no transponder target reply from the aircraft. Until 1501:39, he made several attempts to contact the aircraft, but received no response. Albuquerque ARTCC radar computer data showed that radar contact with the aircraft was lost at 1458:07 at FL447. Five witnesses at Felt, Oklahoma, located in the southwest portion of the Panhandle, heard an aircraft overhead at a very high speed. One witness stated that he heard a vibration sound which indicated to him the aircraft was overspeeding. Another witness stated that the aircraft was about lo break the sound barrier. Of the five witnesses interviewed, only one saw the aircraft - and only momentarily - and he stated the aircraft was in about a 45° descent angle and the wings appeared to be rocking up and down. All the witnesses stated that they heard an explosion and saw a mushroom cloud of black smoke erupt when the aircraft crashed to the ground. The accident occurred at approximately 1502LT. The aircraft crashed 2.5 miles southwest of Felt, Oklahoma. All three occupants were killed.
Probable cause:
A loss of control, possibly initiated by an unexpected encounter with moderate to severe clear air turbulence, which caused the aircraft to depart the narrow flight envelope boundaries in which it was operating and from which recovery was not effected, the flightcrew's lack of adequate training and experience in the Learjet; and the aircraft's marginal controllability characteristics near and beyond the boundaries of its flight envelope. Contributing to the accident was the flightcrew's probable extension of the spoilers in an overspeed situation, a procedure that had been prescribed in the approved aircraft flight manual until 1 year before the accident.
Final Report:

Crash of a Beechcraft U-21D Ute at Fort Sill AFB

Date & Time: Mar 30, 1981 at 1300 LT
Type of aircraft:
Operator:
Registration:
67-18106
Flight Type:
Survivors:
Yes
Schedule:
Fort Sill - Fort Sill
MSN:
LM-102
YOM:
1967
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The twin engine airplane crashed in unknown circumstances at Fort Sill AFB while performing a local training flight. Both pilots escaped uninjured while the aircraft was damaged beyond repair.

Crash of a Fairchild UC-123K Provider at Fort Sill AFB: 5 killed

Date & Time: Oct 16, 1980 at 0830 LT
Type of aircraft:
Operator:
Registration:
57-6291
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Fort Sill - Columbus
MSN:
20301
YOM:
1957
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
Shortly after takeoff from Fort Sill AFB, the aircraft crashed in unknown circumstances. All five crew members were killed. They were en route to Columbus-Rickenbacker (Lockbourne AFB), Ohio.
Crew:
Cpt George Freeland Jr.,
Maj Thomas Brady,
Lt Col Donald Griffith,
T/Sgt Michael Snodgrass,
Sr Amn Robert Hass.

Crash of a Rockwell Grand Commander 690 in Newcastle: 2 killed

Date & Time: Jan 30, 1980 at 1603 LT
Registration:
XB-AEA
Survivors:
No
Schedule:
Dallas - Oklahoma City
MSN:
690-11199
YOM:
1974
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
14700
Captain / Total hours on type:
800.00
Circumstances:
On approach to Oklahoma City-Will Rogers Airport, the twin engine airplane stalled and crashed in flames in Newcastle, about 8 miles south of the airport. The aircraft was destroyed and both pilots were killed.
Probable cause:
Stall on approach after the crew failed to maintain flying speed. The following contributing factors were reported:
- Inadequate/incorrect weather briefing,
- Icing conditions including sleet, freezing rain,
- Airframe ice,
- Forecast of icing conditions not provided to pilot.
Final Report:

Crash of a Rockwell Aero Commander 560 at Tinker AFB: 1 killed

Date & Time: Jan 18, 1979 at 0306 LT
Operator:
Registration:
N2684B
Flight Type:
Survivors:
Yes
Schedule:
Hot Springs - Tinker
MSN:
560-184
YOM:
1954
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
392
Circumstances:
While approaching Tinker AFB by night, the crew encountered low visibility due to foggy conditions and initiated a go-around maneuver. The crew attempted four other approaches that were abandoned due to poor visibility. During the fifth approach, the crew declared an emergency due to low fuel then the airplane stalled and crashed. A pilot was killed while the second occupant was seriously injured.
Probable cause:
Stall during a missed approach due to improper in-flight decisions. The following contributing factors were reported:
- Improper IFR operation,
- Failed to maintain flying speed,
- Low ceiling,
- Fog,
- Zero visibility,
- Low on fuel,
- Adverse/unfavorable weather,
- Flight path erratic during 5th attempted approach,
- Emergency declared due low fuel.
Final Report:

Crash of a Rockwell Grand Commander 680FP in El Reno: 3 killed

Date & Time: Jan 11, 1979 at 1010 LT
Registration:
N2177M
Flight Phase:
Survivors:
No
Schedule:
El Reno - New Orleans
MSN:
680-1170-89
YOM:
1962
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
12138
Circumstances:
After takeoff from El Reno-Regional Airport, while climbing in foggy conditions, the pilot lost control of the airplane that dove into the ground and crashed few miles from the airfield. All three occupants were killed.
Probable cause:
Loss of control during climb to cruise after the pilot suffered a spatial disorientation. The following contributing factors were reported:
- Low ceiling,
- Fog,
- Visibility one mile or less.
Final Report: