Video Shows B-1B's Catastrophic Engine Failure, Explosion And Fire At Dyess AFB Last Year (2024)

June 21, 2023Aviation Safety

David Cenciotti

Video Shows B-1B's Catastrophic Engine Failure, Explosion And Fire At Dyess AFB Last Year (1)

Footage shows B-1 experiencing a catastrophic engine failure during a ground run-up at Dyess Air Force Base, Taylor County, Texas.

The footage in this post is interesting. It shows what happened on Apr. 20, 2022, when a U.S. Air Force B-1B Lancer bomber of the 7th Bomb Wing, serial 85-0089, experienced a catastrophic engine failure and fire on a the #1 engine while undergoing maintenance on the main ramp at Dyess AFB, Texas. The explosion injured one airman and caused damage to the aircraft worth nearly 15M USD.

According to the official investigation report, the incident occurred at 22.16LT, as the maintenance crew, comprised of members from the 7th Aircraft Maintenance Squadron and the 489th Aircraft Maintenance Squadron, were performing routine corrective maintenance, in accordance with technical orders, in response to the malfunctioning #1 engine variable area exhaust nozzle of the mishap aircraft.

During run-up to maximum augmenter to verify correct performance of the #1 engine variable area exhaust nozzle, the #1 engine catastrophically failed, ejecting its 2nd Stage Fan Disk from the intake section and severing fuel lines, which caused a fire to erupt in the engine. The 2nd Stage Fan Disk continued to fly away from the aircraft and landed over five hundred feet from the MA [Mishap Aircraft]. The MMC [Mishap Maintenance Crew] executed emergency engine shutdown procedures and egressed away from the aircraft. Emergency crews quickly responded and extinguished the fire within ten minutes.

The supersonic bomber suffered also extensive fire damage to the left nacelle and wing. Debris from the explosion struck one Airman who suffered minor injuries and was treated promptly at the local hospital.

Root cause

The Accident Investigation Board President found by a preponderance of the evidence that high cycle fatigue on the #1 engine’s 2nd Stage Fan Disk was the cause of the accident. Laboratory testing demonstrated that high cycle fatigue initiated a crack on the surface of the 2nd Stage Fan Disk at the corner of a blade slot and the forward face of the disk. The crack, once initiated by the stress induced from repeated acceleration and deceleration of the engine, was propagated by a mix of high cycle and low cycle fatigue. The crack and its initial growth increased the stress beyond the 2nd Stage Fan Disk’s yield strength, leaving it susceptible to low cycle fatigue. The surface crack grew to a depth of approximately 0.7 inches before the 2nd Stage Fan Disk broke apart causing the #1 engine to fail catastrophically. The root cause of the high cycle fatigue that caused the initial crack in the 2nd Stage Fan Disk could not be determined. No factors substantially contributed to this mishap.

Video

Although the report by the AIB (Accident Investigation Board) was released last year (on Dec. 19, 2022), videos apparently shot by a surveillance IR camera as well as a smartphone on the apron, show the mishap.

Video Shows B-1B's Catastrophic Engine Failure, Explosion And Fire At Dyess AFB Last Year (2)

About David Cenciotti

David Cenciotti is a journalist based in Rome, Italy. He is the Founder and Editor of “The Aviationist”, one of the world’s most famous and read military aviation blogs. Since 1996, he has written for major worldwide magazines, including Air Forces Monthly, Combat Aircraft, and many others, covering aviation, defense, war, industry, intelligence, crime and cyberwar. He has reported from the U.S., Europe, Australia and Syria, and flown several combat planes with different air forces. He is a former 2nd Lt. of the Italian Air Force, a private pilot and a graduate in Computer Engineering. He has written five books and contributed to many more ones.

  • B-1B Lancer
  • Dyess Air Force Base
  • mishap

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Video Shows B-1B's Catastrophic Engine Failure, Explosion And Fire At Dyess AFB Last Year (2024)

FAQs

Did a B1 bomber crash? ›

The B-1 crashed "at approximately 5:50 p.m. today while attempting to land on the installation. At the time of the accident, it was on a training mission. There were four aircrew on board.

How much does the b1 bomber cost? ›

Each one costs roughly $317 million, according to a service fact sheet. The B-1B Lancer is a long-range bomber that at one point was nuclear capable but hasn't been since 2007. "The United States eliminated the nuclear mission for the B-1 in 1994," an Air Force fact sheet detailed.

What engine is in the B-1 bomber? ›

Does a B-1 bomber have a bathroom? ›

A toilet and galley were provided to support long missions, and there was space for two instructors along with the crew of four. However, the instructors sat on fixed seats, meaning they had to bail out manually in case of an emergency.

What was the death rate of the bomber crew? ›

Bomber Command crews also suffered a high casualty rate: 55,573 were killed out of a total of 125,000 aircrew, a 44.4% death rate. A further 8,403 men were wounded in action, and 9,838 became prisoners of war.

Can a B-1 bomber carry nuclear weapons? ›

With the wings fully swept back, the B-1B can drop to 200 feet (60 metres) above the ground and fly at Mach 0.9 (670 miles per hour, or 1,080 km/h). The plane can carry eight air-launched cruise missiles or 24 SRAMs. It can also carry up to 24 nuclear bombs or 84 500-pound (227-kg) conventional bombs.

What is the top speed of the B-1 bomber? ›

B-1B Lancer Technical Specifications
FunctionLong-range, multi-role, heavy bomber
Max Takeoff Weight477,000 lbs (216,634 kg)
Fuel Capacity265,274 lbs (120,326 kg)
Payload75,000 lbs internal (34,019 kg), 50,000 lbs (22,679 kg)
Speed900-plus mph (Mach 1.2 at sea level)
9 more rows

What is the Russian equivalent of the B-1 bomber? ›

While similar in appearance to the American B-1 Lancer, the Tu-160 is a different class of combat aircraft; its primary role being a standoff missile platform (strategic missile carrier).

What will replace the B-1 bomber? ›

The B-21 is slated to, by 2040, replace the U.S. Air Force's 45 B-1 strategic bombers, which date from the 1980s, and 19 B-2 strategic bombers, which date from the 1990s. The B-21 may also eventually replace the B-52, which originally dates from the 1950s and is slated to remain in service for many decades.

How far can a B-1 bomber fly? ›

Performance: Speed 900+ mph at S-L, range approx. 7,455 miles (further with air refueling). Ceiling: More than 30,000 ft.

Is the B1B bomber stealth? ›

The B-1B modified the basic airframe with stealth features, such as blended contours and radar-absorbing materials, which lowered the aircraft's speed but reduced its radar reflectivity to one one-hundredth that of the B-52.

How many B-1 bombers are still in service? ›

The B-1 is a supersonic bomber capable of carrying conventional weapons; the first was delivered to the Air Force in 1985. The service has 45 Lancers in the fleet, down from its original inventory of 100.

Has a B-2 ever crashed? ›

One B-2 has been lost in service. In 2008, a Spirit crashed on takeoff at Andersen, the accident later attributed to condensation in the air data system which gave faulty indications of the aircraft's attitude, prompting the computer to command an excessive pitch-up.

Did the B 36 ever crash? ›

The B-36 bomber that crashed on Mount Kologet in northwest BC was the largest bomber ever made, with a 70-metre wingspan and the ability to fly for 24 hours without refuelling.

What happened with the Andes survivors? ›

Of the 16 survivors, 14 are still alive. José Luis “Coche” Inciarte died in 2023 of cancer, per the AFP, as did Javier Methol in 2015. Sergio Catalan, the herdsman who encountered Fernando Parrado and Roberto Canessa after their 10-day trek through the Andes from the crash site, died in 2020 at the age of 91.

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