TWA Flight 260

TWA Flight 260

A Martin 4-0-4 of Trans World Airlines.
Accident
Date	February 19, 1955
Summary	Controlled flight into terrain
Site	Sandia Mountains, Bernalillo County, New Mexico, USA 35°11′38″N 106°26′31″W / 35.194°N 106.442°W / 35.194; -106.442
Aircraft
Aircraft type	Martin 4-0-4
Operator	Trans World Airlines
Registration	N40416
Flight origin	Albuquerque International Airport, NM (ABQ/KABQ)
Destination	Santa Fe Municipal Airport, NM (SAF/KSAF)
Passengers	13
Crew	3
Fatalities	16[1]
Injuries	0
Survivors	0

TWA Flight 260 was the Trans World Airlines (TWA) designation for a flight from Albuquerque, New Mexico to Santa Fe, New Mexico. On February 19, 1955, the 40-passenger Martin 4-0-4 prop plane used by TWA for that route crashed into the Sandia Mountains. Its deviation from the normal flight path, initially believed to be the result of pilot error, was revised to "unknown" given that the contribution of other factors could not be definitively ruled out.

On February 19, 1955 at 7:03 am, TWA flight 260 en route from Albuquerque, New Mexico to Santa Fe, New Mexico received an IFR clearance from the Albuquerque tower ("ATC clears TWA 260 for approach at the Santa Fe Airport via Victor 19 climb northbound on the back course of the ILS localizer"). There were no further communications after the aircraft took off at 7:05. It was last seen in a high-speed shallow climb toward the cloud-shrouded Sandia Crest at an estimated altitude of 3,000 feet above ground level.^{[citation needed]}

At 7:13 the flight crashed into Sandia Mountain killing all 13 passengers and three crew members on board. Authorities were not aware of the crash location until the next morning when a cargo pilot spotted the wreckage.^[2] Due to the complex mountainous terrain, several members of the New Mexico Mountain Club, along with Explorer Scouts and Boy Scouts, assisted Airmen and New Mexico State Police in the recovery efforts.^[3] This later led to the formation of the Albuquerque Mountain Rescue Council, a volunteer organization still active today. Mountaineers George Boatman and Frank Powers were the first people to reach the crash site.^[2]

The aircraft for flight 260 was seventy-four feet and seven inches long and twenty-eight feet and five inches tall. This allowed the aircraft to have plenty of room to carry the maximum amount of forty passengers. Its wingspan spanned ninety-three feet and three inches and had a maximum speed of 312 mph.^[3]

Captain Ivan Spong, the pilot of Flight 260, had a good understanding of the Albuquerque-Santa Fe route because he had flown it a dozen times that month. According to a family member quoted by Charles Williams, the pilot expressed uneasiness when he had to make the trip to Santa Fe in unfavorable weather conditions.^[4] Captain Ivan Spong initiated his career as a test pilot for Cessna Aircraft and also served as a flight instructor. During World War II, Captain Spong undertook flights to transport supplies, payroll, and provide transportation for injured U.S. soldiers and German war prisoners. Subsequent to the war, he began his training with TWA in 1942 and eventually became a captain.^[3]

First Officer Jesse James Creason Jr., formally known as J.J., acquired his aircraft experience through operating crop dusters, receiving flight training, and serving in the U.S. Army Air Corps. He began flying for TWA in 1952 and grew a good understanding of the Albuquerque route, having completed it on thirty-two occasions.^[3]

The initial Civil Aeronautics Board (CAB) Accident Investigation Report was released on October 12, 1955.^[5] Originally the cause was believed to be that the pilots were "intentionally flying the plane into the mountain". This initial CAB "probable cause" adopted a widespread rumor: it implied a "suicide pact" between the two airline pilots.^[6] An amended accident report was released by CAB on August 26, 1957, which deleted the word "intentional".^[7]

Captain Larry DeCelles worked cooperatively with the CAB's investigators to understand pilot reports of latent faults in a fluxgate compass that only appeared after extended intervals with turn bank-angle. After these investigations, the CAB issued a third version of the report on June 15, 1960. The updated report listed the probable cause as "deviation from the prescribed flight path for reasons unknown" given that malfunction of the fluxgate compass as a contributing factor could not be entirely ruled out.^[8]

On May 14 members of the New Mexico Mountain Club who had participated in the initial recovery effort returned to the site to recover and bury any human remains left at the site before the summer climbing season. They collected over 150 pounds of remains and also recovered a Fluxgate compass from the remains of the left wing tip where it had been left by the impact.^[9] Because of a design wiring defect both the pilot's and copilot's RMI gauges were driven by the same Fluxgate compass which was the one recovered. As a result, there was no opportunity for either pilot to be aware of the erroneous data displayed on their RMIs. While "in order to accept the theory offered, the Board must conclude that both crew members were completely oblivious to all these [countervailing] indications, that their attention was focused entirely on the RMI, and that they did not cross-check any other flight instruments", this evidence convinced the CAB to amend the accident report to include instrument error as a possible contributing factor.^[10] The CAB's third version of their Accident Report discussed their willingness to work cooperatively with experts from the airline and the pilots' association toward revising its previous report.^{[citation needed]}

The Board recognizes that the theory of the fluxgate compass error advanced by the Air Line Pilots Association can not be disproven. Such error may account for the initial directional error of the flight heading the aircraft toward the Sandia Mountains. However, it can not account for the continued flight long past time the crew should have noticed the error.^[11]

According to the National Historic Preservation Act of 1966, any historic site that is 50 years or older is protected. The TWA wreckage met the 50-year mark in 2005, making removing any plane wreckage illegal.^[3] Therefore, the TWA wreckage is considered a historic site. Wreckage from the craft can still be seen by people riding the Sandia Peak Tramway, a popular tourist attraction, on brightly lit days as the wreckage sits just underneath the tram.^[12] Fifty years after the crash, Hugh Prather, a man who grew up in the shadows of the Sandia Mountains, fixed a simple memorial to the largest piece of remaining wreckage. The memorial states the names of the sixteen victims and a brief description of the crash.^[2] The location of the crash is locally referred to as "TWA Canyon", and the ridge that Flight 260 struck is known locally as "Dragons Tooth".^[13]

The bodies of the victims were recovered over the span of four days. On the early morning of February 20, approximately 400 Explorer Scouts and Boy Scout leaders joined the group search alongside Airmen and State Police officers already involved.^[3]

Captain Spong's wife, Jean Spong, began receiving harassing phone calls and mail in the aftermath of the crash, especially once the initial CAB report was released. Additionally, her son was bullied at school by other kids. Eventually, Jean and her son moved from Kansas City to Phoenix to live with her husband's sister and cousin in order to get away from the harassment.^[9] As per New Mexico law at the time, the insurance claims for the passengers was limited to $10,000 per victim. These payments were to be paid by the airline.^[9]

• Civil Aeronautics Board
  • Final accident report - June 9, 1960 - PDF
• Albuquerque Mountain Rescue Council
• Sandia Peak