Previous cases:
https://www.popularmechanics.com/military/weapons/a23757/f-35-fighter-catches-fire/
Yet Another F-35 Fighter Catches Fire
The incident did at least two million dollars in damage.
By
Kyle Mizokami
Nov 9, 2016
257
A Marine Corps F-35B Joint Strike Fighter caught fire in mid-air, causing at least two million dollars in damage to the aircraft. The aircraft landed safely and the pilot was unharmed. It's the third fire for the controversial jet.
The incident took place on October 27th, when a F-35B part of Marine Fighter Attack Training Squadron 501 caught fire in the internal weapons bay. The F-35 has two internal bays, meant to hide weapons inside the aircraft's bulk and preserve the plane's stealthy form.
The cause of the fire was unknown but the accident is under investigation. The accident was classified as a "Class A," which means that at least two million dollars' worth of damage was estimated to have been done to the aircraft.
This is the third fire in three years for the F-35. In 2014, an Air Force F-35A
caught fire at Eglin Air Force base while preparing for takeoff. On September 23rd of this year another F-35A
caught fire during aircraft startup.
It's unclear whether or not the $100 million dollar fighter in this latest incident can return to service. The pilot was able to land the aircraft safely, which suggests the aircraft's ability to fly wasn't too badly compromised. As
Military.com reports, the aircraft's squadron didn't stand down for safety, which also implies the Marines—and the broader multinational F-35 program—know the general cause of the fire and are confident it's not a fleet-wide problem. We'll find out when the investigation is complete and the accident report comes out.
Source:
Military.com
https://sputniknews.com/military/201707131055524524-tailwind-blamed-uncontained-f-35-fire/
Say What?! Tailwind to Blame for ‘Uncontained,’ Costly F-35 Engine Fire
© AP Photo / Lefteris Pitarakis
Military & Intelligence
22:05 13.07.2017(updated 06:38 14.07.2017) Get short URL
24352
A fresh investigation has concluded that gusts of wind may have been the most important factor in causing an F-35A Joint Strike Fighter’s engine to fail and catch fire during training on September 23, 2016.
The catastrophic and costly engine breakdown occurred after wind “forced hot air into the inlet of the Integrated Power Pack,” a part of the jet’s internal power and cooling system.
The Accident Investigation Board
report was published by US Air Education and Training Command on July 12.
During the accident, the pilot was able to safely eject from the “mishap aircraft” while it was ablaze, but two-thirds of the jet “sustained significant fire damage.” Repairs to the F-35 jet are expected to cost $17 million, at the very minimum, according to the executive summary section of the investigation.
© Flickr / Gonzalo Alonso
Australia’s New $100M F-35As Can’t Fly Through Lightning
Last week, Air Education and Training Command
announced “the engine failed when the third stage forward integral arm of a rotor fractured and liberated during the takeoff.” That separate announcement stated total damages would cost upwards of $50 million.
Accident Investigation Board President Col. Dale Hetke said the F-35 community has had merely “vague awareness of the issue” causing the engine fire.
In January, the F-35 program office integration head at the US Air Force said that investigators believed the issue was a “
tailpipe fire” triggered by excess fuel pooled near the back of the airplane, Sputnik reported. Officials clamoring for an explanation said faulty cooling wires and improper insulation could have been the culprit for the fire. Brig. Gen. Scott Pleus went so far as to say that “the initial feedback from this is it was not an engine fire.”
A different
fire aboard an F-35B in Beaufort, South Carolina, in October of last year was spurred by a loose bracket in the aircraft’s weapons bay.
© US Air Force photo by Senior Airman James Hensley
The Sky’s the Limit: F-35 Costs Slated to Rise by Nearly Half-a-Trillion Dollars
The investigative report marks the latest embarrassment for the Lockheed Martin weapons program. A Select Acquisition Report shared behind closed doors with US lawmakers on Monday stated acquisition costs for the F-35 will increase $28 billion dollars.
At least $1.1 trillion has been set aside for F-35 operating costs. Another $406 billion has been set aside for the F-35 acquisition budget, making it the most expensive weapons program in US history.
https://foxtrotalpha.jalopnik.com/we-finally-know-why-an-f-35-burned-on-the-runway-1630541564
We Finally Know Why An F-35 Burned On The Runway
Tyler Rogoway
9/04/14 11:51am
Filed to: F-35
13417
We are finally getting information as to what caused the
F-35A engine fire that has left the entire program progressing at a snail's pace due to strict flight restrictions.
Axing The F-35's Alternative Engine Was An Incredibly Stupid Move
The DoD painted the F-35's alternative jet engine as a huge unneeded expense, one that was…
Read more
According to the
Air Force Times, the cause of the fire that engulfed a nearly new F-35A on the runway at Eglin AFB had its genesis in a fairly benign flight maneuver performed weeks earlier:
The issue began three weeks before the fire when a pilot took the aircraft up and executed a two-second maneuver involving adding Gs, roll rate and yaw to the plane at the same time.
Although that move was ""well within the envelope of the airplane," Bogdan said, those two-seconds led to the engine rubbing against a rubber piece at a much higher rate — and nearly double the temperature — than it was designed to do. In turn, that led to what Bogdan called "microcracks" that went unnoticed until the day of the fire.
"Over the next three weeks of that airplane flying, those microcracks started growing in what we call 'high cycle fatigue,'" Bogdan explained. "And eventually on the day this happened, that fan-blade system just cracked too much, the whole circular part of that engine — through centrifugal force — stretched out and became a spear; that spear went up through the left aft fuselage of the fuel tank and it was the fuel tank that caused the fire."
At this point, it is not clear exactly what modification will be needed to keep this violent event from happening again. Does the F-35's engine need a new bushing made up of more temperature resistant material, its fan disk replaced, or is there a larger structural redesign looming?
Whatever modifications end up being needed to solve the problem, Pratt & Whitney, the engine's manufacturer and the only engine manufacturer for the giant Joint Strike Fighter program, says they will be paying for it, not the U.S. taxpayer.
What Pratt & Whitney will not be paying for is the building backlog of test points that have to be accomplished before the jet reaches a rudimentary initial operating capability (IOC) with the Marine Corps. Many have seen the F-35B's IOC date of next year as more of a
promotional tool than a real milestone that marks the U.S. Department of Defense finally having a highly usable multi-role fighter for the many billions of dollars that have already been spent on the fledgling program.
Regardless of when the F-35B is slated as "operational," the more time the DoD's ever growing fleet of F-35s stay grounded the more they will cost, and the bigger risk the fragile program will have at losing orders. Keeping the production numbers, both for foreign and domestic consumption, where they are is key to keeping the entire program from entering into a death spiral, where each jet's cost will increase due to smaller economies of scale and the amortization of developing the already very expensive jet being spread over less airframes.
Currently, the JSF program says they are a couple months behind the flight test schedule (that has already been lengthened multiple times), and some of this can be made up with increased sortie rates if all the F-35s are returned to service without flight restrictions. Any more time that the jets are kept under strict flight rules beyond the end of this month will affect the program's already reformed goals.
Another engine-related issue that has come to the surface has to do with the quality of the titanium used in the Pratt & Whitney F-135 engine production. Apparently, a Pratt & Whitney subcontractor, A&P Alloys, supplied the company with questionable titanium stocks, from which components of the F-35's engine are machined. This has caused a
pause in production dating back to last May as Pratt & Whitney investigated the issue. It is not clear how this gap in production will affect future F-35 deliveries.
It is claimed that the suspect metal has nothing to do with the current engine woes, and the parts that it does affect are being replaced by Pratt & Whitney. Yet this event, and the engine fire that followed it, does highlight the vulnerability of using a single engine source for an aircraft that the US and many of its allies are hanging their future of air supremacy on.
The titanium supply question also underlines a looming issue as to how America will
satisfy its demand for titanium if the trade situation with Russia continues to deteriorate. We have
dealt with this problem during the Cold War via clandestine means, but at the time, titanium had nowhere near the demand as it does today, with key aerospace designs such as the 787 and Super Hornet and F-35, along with many other aircraft and missiles, relying on the robust and light material.
Photos via USAF
Rogoway is a defense journalist and photographer who maintains the website Foxtrot Alpha for Jalopnik.com You can reach Tyler with story ideas or direct comments regarding this or any other defense topic via the email address [email protected]
https://www.businessinsider.sg/marine-f-35-fighter-fire-2016-11/?r=US&IR=T
Another F-35 fighter caught on fire
Paul Szoldra,
Business Insider US
November 7, 2016
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An F-35B from Marine Fighter Attack Training Squadron 501 (VMFAT-501), flies near its base a MCAS Beaufort, South Carolina. Lockheed Martin
An F-35B Joint Strike Fighter caught fire while in-flight during a training exercise last month,
according to a report from Hope Hodge Seck of Military.com.
The incident was listed by the Naval Safety Center as a “Class A Mishap” – the most serious mishap class – which means that there was $2 million or more in damage. The Safety Center’s report said the fire occurred in the aircraft’s weapons bay on Oct. 27, and was followed by an “uneventful landing.”
The actual amount of damage to the aircraft, which belonged to Marine Fighter Attack Training Squadron 501 out of Beaufort, S.C., is not yet known.
A number of calls made by Business Insider to the 2nd Marine Aircraft Wing for comment went unanswered. However, a spokesman reported to Military.com that there were no injuries in the incident.
“The aircraft landed safely and there were no injuries sustained,” 1st Lt. John Roberts told the site. “An investigation is ongoing and we will provide updates as they are available.”
This seems to be the first time the Marine F-35B variant of the aircraft – which takes off and lands vertically – has caught on fire. An Air Force F-35A
caught on fire soon after its pilot started the engine in September. In 2014, another Air Force F-35 caught on fire during takeoff,
according to Popular Mechanics.
The 2014 incident
led the Pentagon to temporarily ground all F-35s until investigators determined a fix.
Besides potentially dangerous incidents of fire, the troubled fifth-generation fighter has been marred by cost overruns and criticized for its excessive cost.
Earlier this month, defense officials put in a request for a half-billion more dollars to finish development of the jet, which has already gone 50% over its original budget.
Rising costs haven’t been the only problem of note for the F-35. The jet
has had plenty of other incidents while being built, such as electrical problems, major issues with its software, and problems related to its advanced helmet system.
Just four months ago, the Pentagon’s chief weapons tester
wrote in a memo the F-35 program was “not on a path toward success but instead on a path toward failing to deliver.”
Still, the Air Force and Marines
have both declared the fighter “combat ready” and have begun integrating it into their squadrons. The military
has only taken delivery of about 180 of the aircraft from Lockheed Martin so far, though it plans to buy more than 2,400.
The fighter, which features stealth and advanced electronic attack and communications systems,
is a project with roots going back to the late 1990s. Lockheed won the contract for the fighter in 2001.
https://www.marinecorpstimes.com/ne...2018/06/21/the-corps-has-lost-its-first-f-35/
The Marine Corps has lost its first F-35
By:
Shawn Snow 5 days ago
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An F-35B Lightning II approaches the amphibious assault ship USS Wasp (LHD 1) as the guided-missile destroyer USS Dewey (DDG 105) transits alongside on April 18, 2018, following an expeditionary strike as part of Certification Exercise (CERTEX) in the Philippine Sea. (MC1 Daniel Barker/Navy)
An
F-35B that erupted into flames after a faulty bracket issue nearly two years ago has been struck by the Marine Corps, making it the first loss of an F-35 for the Corps.
The Corps made the determination that the costs to repair the costly high-tech fighter would not be worth the return on investment.
However, the Marines have not put out an official strike message for the
F-35B because the Corps has not decided whether the aircraft will be used as a trainer for maintenance or a museum centerpiece.
The Corps struggles to maintain the F-35 overseas as after-action reports stay in echo chambers
The Corps, Navy, and Air Force are not formally disseminating F-35 after-action reports.
By: Shawn Snow
“With the specific F-35B involved in this discussion, the Marine Corps’ cost-benefit analysis determined the repair costs would not yield a sufficient ROI [return on investment] to justify the expenses,” Capt. Christopher Harrison, a Marine spokesman, told Marine Corps Times. “The decision was made to strike the F-35B; however, there has not yet been a strike message as the disposition decision has not yet been made.”
On Oct. 27, 2016, a fire broke out mid-air on F-35B forcing the pilot to land at Marine Corps Air Station Beaufort, South Carolina.
The faulty bracket, which was known as a potential hazard by officials overseeing the F-35 program, grazed electrical wiring near hydraulic lines. A fire erupted when an electrical short ignited a small hydraulic leak.
Despite the loss of the F-35 the Marine Corps has made some recent historic strides with its F-35 program.
Earlier this year, the F-35B made its first deployment aboard the amphibious assault ship Wasp with the 31st Marine Expeditionary Unit, or MEU. And during that deployment, live munitions were loaded onto an F-35 for the first time while underway.
The 13th Marine Expeditionary is also slated to deploy with F-35s. That unit is still amid predeployment workups.
https://www.military.com/defensetech/2014/06/24/air-force-pilot-escapes-f-35-fire-during-takeoff
Air Force Pilot Escapes F-35 Fire During Takeoff
24 Jun 2014 By Brendan McGarry
A U.S. Air Force pilot safely escaped from an
F-35 fighter jet after it caught fire during takeoff Monday morning at a military base in Florida.
The pilot, who wasn't identified, was preparing to conduct a routine training mission around 9:15 a.m. at Eglin Air Force Base, but aborted the exercise due to a fire in the back end of the Lockheed Martin Corp.-made F-35A Lightning II, according to a statement from the service.
The pilot was able to shut down the engine and escape from the plane unharmed. Emergency responders extinguished the fire with foam. The test plane was assigned to the 33rd Fighter Wing, which trains F-35 pilots for U.S. and international forces.
"We take all ground emergencies seriously," Navy Capt. Paul Haas, vice commander of the 33rd Fighter Wing, said in the statement. "In this case, the pilot followed the appropriate procedures which allowed for the safe abort of the mission, engine shutdown, and egress."
He added, "We have a robust and extensive training program in which every pilot and aircraft crew member is trained, in order to respond quickly and correctly in the event emergencies occur."
It wasn't immediately clear what caused the fire, where exactly it originated or how badly it damaged the aircraft, which
cost more than $100 million apiece. The Air Force is still investigating the incident and pledged to release additional details as they become available.
One
news report said the aircraft was "severely damaged" and "possibly destroyed."
Spokesmen for Lockheed and United Technologies Corp.'s Pratt & Whitney unit, which makes the F-35 engine, said they knew of the ground emergency involving the aircraft, but directed requests for additional information to the Air Force.
"We are aware of the incident at Eglin AFB yesterday involving an F-35A aircraft and Lockheed Martin is prepared to provide any assistance requested by the Air Force and the 33rd Fighter Wing," Michael Rein, a spokesman for Bethesda, Md.-based Lockheed, said in an e-mail.
"Pratt & Whitney stands ready to assist the 33rd Fighter Wing in its investigation," Matthew Bates, a spokesman for Pratt & Whitney military engines in East Hartford, Connecticut, said in an e-mail.
The F-35 Joint Strike Fighter Program is the Defense Department's most expensive weapons acquisition program, estimated to cost almost $400 billion for a total of 2,457 aircraft for the Air Force, Navy and Marine Corps.
Developmental problems have kept the planes from flying in the past. Last year, the entire fleet was grounded after a crack was found on an engine turbine blade. More recently, test flights were reportedly
stopped due to an engine valve fitting.
Operational flights of the aircraft are
scheduled to begin next year. The Marine Corps' version of the jet, called the F-35B, which can take off like a helicopter and fly like a plane, is set to reach the milestone by December 2015; the Air Force's by December 2016 and the Navy's by February 2019.