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Crash of a Cessna 500 Citation I in Gunnison

Date & Time: Dec 4, 2016 at 1853 LT
Type of aircraft:
Operator:
Registration:
N332SE
Flight Type:
Survivors:
Yes
Schedule:
San Jose – Pueblo
MSN:
500-0332
YOM:
1975
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
2267
Captain / Total hours on type:
142.00
Aircraft flight hours:
5218
Circumstances:
The commercial pilot of the jet reported that he initially requested that 100 lbs of fuel be added to both fuel tanks. During the subsequent preflight inspection, the pilot decided that more fuel was needed, so he requested that the airplane's fuel tanks be topped off with fuel. However, he did not confirm the fuel levels or check the fuel gauges before takeoff. He departed on the flight and did not check the fuel gauges until about 1 hour after takeoff. He stated that, at that time, the fuel gauges were showing about 900-1,000 lbs of fuel per side, and he realized that the fuel tanks had not been topped off as requested. He reduced engine power to conserve fuel and to increase the airplane's flight endurance while he continued to his destination. When the fuel gauges showed about 400-500 lbs of fuel per side, the low fuel lights for both wing fuel tanks illuminated. The pilot reported to air traffic control that the airplane was low on fuel and diverted the flight to the nearest airport. The pilot reported that the airplane was high and fast on the visual approach for landing. He misjudged the height above the ground and later stated that the airplane "landed very hard." The airplane's left main landing gear and nose gear collapsed and the airplane veered off the runway, resulting in substantial damage to the left wing. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Probable cause:
The pilot's failure to fly a stabilized approach and his inadequate landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's failure to ensure that the airplane was properly serviced with fuel before departing on the flight.
Final Report:

Crash of a Swearingen SA226AC Metro II in Denver

Date & Time: Apr 15, 2003 at 2041 LT
Type of aircraft:
Operator:
Registration:
N229AM
Flight Type:
Survivors:
Yes
Schedule:
Gunnison - Denver
MSN:
TC-305
YOM:
1979
Flight number:
HKA1813
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
4565
Captain / Total hours on type:
2179.00
Copilot / Total flying hours:
2517
Copilot / Total hours on type:
1400
Aircraft flight hours:
31643
Circumstances:
The flight was following a heavy jet on landing approach. The crew agreed to fly the approach at a slightly higher altitude than normal to avoid any possible wake turbulence. The first officer, who was flying the airplane, called for the landing gear to be lowered. When the captain placed the gear handle in the DOWN position, he noted red IN-TRANSIT lights. He recycled the landing gear, but got the same result. He consulted the emergency checklist and thought he had manually extended the landing gear because he "heard the normal 'clunk feel' and airspeed started to decay." In addition, when power was reduced to FLIGHT IDLE, the GEAR UNSAFE warning horn did not sound. The first officer agreed, noting 2,000 pounds of hydraulic pressure. The airplane landed wheels up. Propeller blade fragments penetrated the fuselage, breaching the pressure vessel. Postaccident examination revealed the nose gear had been partially extended but the main landing gear was retracted. The crew said the GEAR UNSAFE indication had been a recurring problem with the airplane. The problem had previously been attributed to a frozen squat switch in the wheel well.
Probable cause:
The failure of the landing gear system and the flight crew's failure to ascertain that the landing ear was down and locked. A contributing factor was the inadequate maintenance inspections performed by maintenance personnel.
Final Report:

Crash of a Cessna 340 in Denver: 4 killed

Date & Time: Mar 24, 2002 at 1631 LT
Type of aircraft:
Operator:
Registration:
N341DM
Flight Type:
Survivors:
No
Schedule:
Aspen – Gunnison – Denver
MSN:
340-0347
YOM:
1974
Crew on board:
1
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
3563
Captain / Total hours on type:
560.00
Aircraft flight hours:
3977
Circumstances:
The pilot was flying a three leg IFR cross-country, and was on an ILS approach in IMC weather conditions for his final stop. Radar data indicated that the pilot had crossed the final approach fix inbound and was approximately 3 nm from the runway threshold when he transmitted that he had "lost an engine." Radar data indicates that the airplane turned left approximately 180 degrees, and radar contact was lost. A witness said "the airplane appeared to gain a slight amount of altitude before banking sharply to the left and nose diving into the ground just over the crest of the hill." Postimpact fuel consumption calculations suggest that there should have been 50 to 60 gallons of fuel onboard at the time of the accident. Displaced rubber O-ring seals on two Rulon seals in the left fuel valve and hydraulic pressure/deflection tests performed on an exemplar fuel valve suggest that the fuel selector valve was in the auxiliary position at the time of impact. The airplane's Owner's Manual states: "The fuel selector valve handles should be turned to LEFT MAIN for the left engine and RIGHT MAIN for the right engine, during takeoff, landing, and all emergency operations." No preimpact engine or airframe anomalies, which might have affected the airplane's performance, were identified.
Probable cause:
The pilot not following procedures/directives (flying a landing approach with the left fuel selector in the auxiliary position). Contributing factors were the loss of the left engine power due to fuel starvation, the pilot's failure to maintain aircraft control, and the subsequent inadvertent stall into terrain.
Final Report:

Crash of a Cessna 340A near Crawford: 5 killed

Date & Time: Sep 25, 1986 at 1740 LT
Type of aircraft:
Registration:
N6663G
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Gunnison – Grand Junction
MSN:
340A-0693
YOM:
1979
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
5
Captain / Total flying hours:
2241
Captain / Total hours on type:
1420.00
Aircraft flight hours:
1560
Circumstances:
The pilot took off on a VFR flight with no flight plan filed or weather briefing. He encountered a weather squall line en route with low ceilings, fog, mixed rain and snow. While he was attempting to maneuver VFR through the weather at a low altitude above the ground, the aircraft entered clouds and impacted terrain at 7,500 feet msl in mountainous terrain. All five occupants were killed.
Probable cause:
Occurrence #1: in flight encounter with weather
Phase of operation: maneuvering
Findings
1. (f) weather condition - low ceiling
2. (f) weather condition - fog
3. (f) weather condition - rain
4. (f) weather condition - snow
5. (f) terrain condition - mountainous/hilly
6. (c) preflight planning/preparation - inadequate - pilot in command
7. (c) hazardous weather advisory - not obtained - pilot in command
8. (c) vfr flight into imc - inadvertent - pilot in command
----------
Occurrence #2: in flight collision with terrain/water
Phase of operation: maneuvering
Findings
9. (c) in-flight planning/decision - improper - pilot in command
10. (c) proper altitude - not maintained - pilot in command
Final Report: