A British F-35B Lightning II has now spent more than two weeks on the ground in southern India, after being forced to divert from HMS Prince of Wales and land at Thiruvananthapuram’s civilian airport on 14 June.

The aircraft had been operating as part of Operation Highmast, the Royal Navy’s flagship deployment of 2025, which sees the Carrier Strike Group conducting high-profile engagements and joint exercises across the Indo-Pacific.

The incident was raised in the House of Commons on 30 June by Ben Obese-Jecty, the Conservative MP for Huntingdon, who asked the government to clarify what was being done to secure the jet and return it to operational service. “What steps are the Government taking to recover the plane, how much longer will that take, and how will the Government ensure the security of protected technologies on the jet while it is in the hangar and out of view?” he said.

The response from Minister for the Armed Forces Luke Pollard confirmed that the aircraft remains under close UK control, with RAF personnel guarding it around the clock. “We continue to work with our Indian friends who provided first-class support when the F-35B was unable to return to the Prince of Wales when on a flight mission,” he said. “I am certain that the security of the jet is in good hands because Royal Air Force crew are with it at all times.”

While the cause of the incident has not been officially disclosed, it is understood that a technical issue prevented the aircraft from recovering to the carrier. The Indian Air Force and civil aviation authorities granted immediate clearance for the aircraft to land, and the jet was moved to a secure hangar at Thiruvananthapuram International Airport.

Engineers and logistics support teams have since been deployed to assess options for its recovery, though no timeline has yet been publicly confirmed.

The F-35B is the UK’s most advanced combat aircraft and central to its carrier strike capability. Although no sensitive systems are believed to have been compromised, the aircraft’s extended presence at a civilian location in a non-NATO partner country has prompted questions from MPs and analysts about operational risk, technology security, and resilience planning.

The Ministry of Defence has not made clear when the aircraft will return to service or whether it will be able to rejoin HMS Prince of Wales, which departed Singapore earlier this week to continue the eight-month Operation Highmast deployment. The aircraft remains under British military control at all times.

George Allison
George has a degree in Cyber Security from Glasgow Caledonian University and has a keen interest in naval and cyber security matters and has appeared on national radio and television to discuss current events. George is on Twitter at @geoallison

19 COMMENTS

    • 2 weeks seems like a long time to make their mind up on either moving it to somewhere a c17 can pick it up or to a port for onward transport home. Wonder why they haven’t moved it.

      • They had three goes at fixing it with the techs that were Merlin’s over from PoW.

        They then sent another team from Marham – presumably with more parts and test kit.

        If the failed part is deep inside the frame then acessing it could be very hard.

        Removing the wings is a rather nuclear option as the frame will require a full rebuild and certification. Which will take time and cost £££££

  1. Much more worrying that it is grounded for unknown technical reasons for so long. Sums up the F35 in reality, we’ll need twice as many given its superb availability rates. What’s not to like about this brilliant piece of kit, other than availability, cost, lack of integrated UK weapons etc…

  2. Looks like our boys are on it then. Better to change out the part/s than remove wings & bring home kit form.
    Nothing to see here. Part needed clearly taking time to source.

    • Part is probably deeply buried within the frame.

      I’d suggest the main hydraulic pump from how difficult this is being.

  3. That’s it, Time for the UKDJ Regular commenting “Top Brass” to spring into action and get that C17 fired up and off to India right away, the time for chatting is over, It’s time for action now.

    “I only realised something was wrong in my teens”.

  4. On the plus side it’s doing great things for Anglo Indian relations while putting a very large dent in the reputation of Lockheed Martin.

  5. Losing an F35 is becoming par for the course for a CSG deployment.
    In the past, dedicated carrier borne aircraft were more robust and easier to fix than land based fighters, The F 35 isn’t.i wonder how long our small air wing would last in intensive operations.

    • Depending on your time frame of choice ‘in the past’ the Fleet Air Arm suffered a peace time aircrew and aircraft loss rate that would make this incident seem like a mere bagatelle. Indeed, this sophisticated and highly advanced aircraft type has been in UK service (in relatively small numbers admittedly) since 2012 with only one aircraft lost – and that was down to human error rather than a technical malfunction.

      So keeping things in perspective before making sweeping statements would seem advisable methinks.

  6. This is a major issue. Combat kit needs to be able to undergo repair in the field. You will not always have the luxury of sending it back home to be repaired. Equipment has now become so complicated that field repair is not possible. As much as I hate to say it some things the Russians do have right in that they have more simplistic systems and possibly more crude construction but they can be fixed in the field which also means that they are going to be available for operations. We in NATO seem to have falling into the same trap of Nazi Germany in WW2 where they had some of the best kit available but not in enough numbers and prone to brakedowns. The allies did not have the best kit but they had it in numbers and would work even if it was not at its best.
    If the issue is the hydrolic pump which needs a strip down to get to it it reminds me of the Toyota MR2 and the hose from hell, a full engine removal for a 50p three inch hose.

    So the question is how the hell do we get the F35 back to the UK, take the wings off, send out a Bay/Argus/ Point. From the cost point possibly it would be better to return the aircraft by ship. Anyone know what the ganrantee period is for a F35B!

  7. I saw an Indian news report where the alleged the Indian Airforce were cock a hoop that they could track it. Somebody should have told them that F35 doesn’t fly full stealth unless in a war scenario for obvious sensible safety reasons.

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