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 Boeing B-17G-DL Flying Fortress in Tucson

Date & Time: Jul 12, 1971 at 1530 LT
Operator:
Registration:
N9324Z
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Tucson - Tucson
MSN:
32183
YOM:
1944
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
3020
Captain / Total hours on type:
450.00
Circumstances:
The crew was engaged in a fire fighting mission in the region of Tucson, Arizona. While flying at low height, the crew noticed a loss of power on all four engines and attempted an emergency landing. The aircraft crash landed in an uninhabited area and came to rest. Both pilots were uninjured while the aircraft was damaged beyond repair.
Probable cause:
Failure of the fuel system and ram air assembly. The following factors were reported:
- Partial loss of power on four engines,
- Forced landing off airport on land,
- Baffle in air intake scoop separated from n°4 engine, restering airflow to carburettor 1, 2 and 3 propellers that moved to high pitch.
Final Report:

Crash of a Carstedt Jet Liner 600A near Coolidge: 12 killed

Date & Time: May 6, 1971 at 1315 LT
Type of aircraft:
Operator:
Registration:
N4922V
Flight Phase:
Survivors:
No
Schedule:
Tucson - Phoenix
MSN:
04285
YOM:
1950
Flight number:
33
Crew on board:
2
Crew fatalities:
Pax on board:
10
Pax fatalities:
Other fatalities:
Total fatalities:
12
Captain / Total flying hours:
6000
Captain / Total hours on type:
2500.00
Circumstances:
Apache Airlines Flight 33 of May 6, 1971, was a regularly scheduled air taxi flight from Tucson to Phoenix, Arizona. The aircraft was a De Havilland Dove Model 104-7AXC (Carstedt CJ600A Conversion), N4922V. The flight departed Tucson International Airport, under visual conditions, at 1253 m.s.t. with 10 passengers and a crew of two, and with 140 gallons of fuel on board. At about 1315, ground witnesses near Coolidge, Arizona, observed the aircraft flying in a northwesterly direction. Some of these witnesses reported that they first heard loud engine noises emanating from the aircraft, and that the engine sound then ceased. According to two of the witnesses, the aircraft initially descended at a “slight angle” which steepened to a 45-to-50 degree dive angle. None of the witnesses saw smoke or fire while the aircraft was in the air, and none saw parts separate from the aircraft. According to the witnesses, there were high scattered cumulus clouds in the area. A pilot, who flew a light aircraft through that general area after the accident, reported that he encountered severe turbulence at about 4,200 feet in the Phoenix area. The 1258 surface weather observation at Phoenix was reported as, measured ceiling of 4,800 feet broken clouds, 25,000 feet overcast, visibility 40 miles, wind from 250’ at 8 knots, and an altimeter setting of 29.78 inches. The crew was current in the aircraft and qualified for the operation involved. The wreckage site, a flat plowed field, revealed two distinct craters with no impact marks between them. One crater was oriented north/south. Most of the fuselage and left wing wreckage was found north of that crater and within 200 feet of it. The other crater, which contained remains of the right wing and the right engine, was located approximately 35 feet southeast of the fuselage crater. Scattered parts of the right wing were located northeast of the crater formed by that wing. Only one piece of wreckage was found outside the immediate area of the craters. This piece, a fairing from the lower aft wing root, was located 1,160 feet northwest (downwind) of the fuselage crater. Although the entire airframe of N4922V was fragmented, the degree of fragmentation was greater on the right side of the fuselage. Both engines were recovered, still attached to portions of their wing attach structure. No evidence of any pre-existing damage was noted on the engine mounts. The engines revealed no evidence of malfunction or failure prior to impact. Neither engine was producing power at impact. Both propellers were found in the feathering range: Disassembly and examination of both fuel controls, the fuel pumps, and the propeller governors revealed no discrepancies except for impact damage. All 12 occupants were killed.
Probable cause:
The inflight failure and subsequent separation of the right wing. This failure was the result of a fatigue fracture in the lower main root joint fitting which propagated from an area of corrosion and fretting damage which, in turn, was caused by design deficiencies. These deficiencies remained undetected because surveillance of the supplemental type certification process and the modification programs was not adequate to assure compliance with design and inspection requirements.
Final Report:

Crash of a Convair T-29A-CO in Tucson: 4 killed

Date & Time: Nov 4, 1954
Type of aircraft:
Operator:
Registration:
50-0189
Flight Type:
Survivors:
Yes
MSN:
219
YOM:
1951
Location:
Crew on board:
3
Crew fatalities:
Pax on board:
12
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
Shortly after takeoff from Tucson Airport, while climbing by night, the crew informed ATC about an engine failure and received the permission to return for an emergency landing. While completing a last turn at low height, the aircraft hit power cables and crashed near the runway threshold. Four occupants were killed while 11 others were injured.
Probable cause:
Engine failure during initial climb.

Crash of a Douglas DC-3-227B near Pine Valley: 25 killed

Date & Time: Mar 3, 1946 at 0812 LT
Type of aircraft:
Operator:
Registration:
NC21799
Flight Phase:
Survivors:
No
Site:
Schedule:
New York – Nashville – Dallas – El Paso – Tucson – San Diego
MSN:
2203
YOM:
1940
Flight number:
AA6103
Crew on board:
3
Crew fatalities:
Pax on board:
22
Pax fatalities:
Other fatalities:
Total fatalities:
25
Captain / Total flying hours:
6973
Captain / Total hours on type:
1423.00
Copilot / Total flying hours:
3300
Copilot / Total hours on type:
1000
Aircraft flight hours:
16322
Circumstances:
At 0559LT, the aircraft departed Tucson and routine position reports were subsequently received from the flight over Casa Grande, Gila Bend, and Yuma, Arizona. At 0754, the American Airlines radio operator at San Diego transmitted the 0750 weather report for San Diego: Indefinite ceiling 1,200 feet, broken clouds; visibility 8 miles. Receipt of this information was acknowledged by flight 6103 and immediately thereafter the flight reported that it had been over El Centro, California, at 0753 at 3,000 feet. Los angels Airway Traffic Control delivered a clearance for Flight 6103 to American Airlines radio station at San Diego clearing the flight to San Diego to cruise at 8,000 feet and to cross San Diego at an altitude of at least 500 feet above the overcast. The company station, in turn, attempted to relay the Airway Traffic Control clearance to the flight at 0812, however, after several attempts at establishing contact with the flight, Airway Traffic Control was advised that the clearance as not delivered. All further attempts to contact the flight were unsuccessful. Routine search procedures were initiated immediately and at 1305 aircraft of the Naval Air Control Center at San Diego reported sighting the wreckage of the airplane was spotted on the east slope of Thing Mountain, some 10 miles southeast of Pine Valley. The aircraft was destroyed by impact forces and all 25 occupants were killed.
Probable cause:
The probable cause of this accident was the action of the pilot in descending or permitting a descent to be made, into instrument conditions to an altitude below that required to maintain clearance over Thing Mountain. The reason for the descent has not been determined.
Final Report:

Crash of a Douglas C-47B-1-DL near Brenda: 17 killed

Date & Time: Dec 25, 1944
Operator:
Registration:
43-16151
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Tucson – Los Angeles
MSN:
20617
YOM:
1944
Location:
Crew on board:
4
Crew fatalities:
Pax on board:
13
Pax fatalities:
Other fatalities:
Total fatalities:
17
Circumstances:
While flying over Arizona, the crew encountered poor weather conditions with thunderstorm activity and low clouds. The twin engine aircraft hit the slope of Mt Black Mesa located some ten miles southwest of Brenda, Arizona. The wreckage was found 12 feet from the summit and all 17 occupants were killed.
Crew:
Cpt Ben Gibson, pilot,
Lt George Winzler, copilot,
Sgt Jack Maier, flight engineer,
Pvt Frank Byrne, radio operator.
Passengers:
Pfc George Jones,
Pfc Dudley Hutton,
Pfc George Francis,
Pfc Bruce Carden,
Pfc Haig Sansian,
Pvt Leroy Thomas,
Sgt Williams Yates,
Sgt Clyde Wikadel,
Yeoman James Woodley,
Donald Brakebill,
Edgell Powell,
E. O. Milliron,
F/O A. C. Middleton.
Source & photos:
http://www.aircraftarchaeology.com/c47blackmesa.html

Crash of a Consolidated B-24D-CO Liberator near Tucson: 11 killed

Date & Time: Jan 18, 1943
Operator:
Registration:
41-11887
Flight Phase:
Flight Type:
Survivors:
No
Site:
MSN:
383
YOM:
1941
Location:
Crew on board:
11
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
11
Circumstances:
En route, the four-engine aircraft went out of control, dove into the ground and crashed on the slope of a mountain located south of Tucson. SAR operations were conducted but suspended after few days as no trace of the aircraft nor the crew was found. Eventually, the wreckage was found two months later on a mountainous and isolated area located south of Tucson. All 11 crew members were killed.
Probable cause:
The official cause of the accident was attributed to a pilot error, although the accident report indicated that the tail section was not found in the wreckage. The tail was found many years later several miles away. Thus, speculation is that in flight structural failure may have caused the crash.

Crash of a Boeing B-17B Flying Fortress near Tucson: 6 killed

Date & Time: Apr 6, 1942
Operator:
Registration:
38-214
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
MSN:
2007
YOM:
1938
Location:
Crew on board:
8
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
En route, an engine caught fire and exploded. The captain attempted an emergency landing but the aircraft eventually crashed in the Santa Catalina Islands, northeast of Tucson. Six crew members were killed while two others were able to bail out and were unhurt.
Probable cause:
Engine failure.

Crash of a Consolidated LB-30 Liberator in Tucson

Date & Time: Dec 23, 1941
Operator:
Registration:
AL621
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
119
YOM:
1941
Location:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The airplane crashed in Tucson following a fuel exhaustion. There were no casualties.
Crew:
Clyde B. Kelsay.
Probable cause:
Fuel exhaustion.

Crash of a Lockheed 9D Orion in El Paso

Date & Time: Nov 21, 1933
Type of aircraft:
Operator:
Registration:
NC229Y
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
El Paso – Tucson
MSN:
200
YOM:
1933
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After takeoff from El Paso Airport, while climbing to a height of about 800 feet, the engine caught fire. The pilot bailed out and abandoned the aircraft that entered a dive and crashed in a field. The pilot was uninjured and the aircraft was destroyed.
Probable cause:
Engine fire during climbout.