The Commemorative Air Force (CAF) today shared an update on the ongoing repairs to FIFI, the iconic B-29 Superfortress. Earlier this year, the CAF announced a delay to the 2025 AirPower History Tour after a critical engine issue was discovered on one of only two B-29s still flying worldwide. FIFI is now undergoing urgent repairs—but her return to the skies depends on continued public support. Behind FIFI’s powerful engines and gleaming silver exterior lies something even stronger: the passion and dedication of countless volunteers. Generations of enthusiasts have devoted their time, expertise, and hard work to preserving this rare warbird. This effort goes beyond maintenance—it’s a commitment to honor history, the veterans who flew her, and the future generations who deserve to experience her roar firsthand. You can support this effort at THIS LINK.
In April, routine pre-flight engine tests revealed a malfunction in the impeller spinner discharge valve, a small yet crucial component of the Curtiss-Wright R-3350 supercharger system. After consulting with specialists, it was determined that engines #2 and #4 needed immediate removal and repair. Thanks to the swift action of the B-29/B-24 Squadron’s maintenance crew, both engines were removed, packed, and shipped to California in just 3.5 days. Repairs are now underway at Vintage Radials, under the guidance of renowned engine expert Mike Nixon. The valve systems are being rebuilt, rigorously tested on a flow bench, and reassembled to exact manufacturer specifications. Each engine will also undergo test runs before being reinstalled on FIFI.
“I’m incredibly proud of our maintenance team and their professionalism,” said Matthew Hood, Maintenance Officer for the B-29/B-24 Squadron. “They treat FIFI with the reverence she deserves. Every inspection and repair reflects deep respect for the aircraft and her legacy. Their care and precision show in all they do.” While FIFI’s grounding is temporary, the financial cost of these repairs is significant. To help cover expenses and ensure a swift return to flight, the CAF has launched a fundraising campaign.
“We deeply appreciate everyone’s patience and support during this process,” said Jeremy Lashbrook, B-29/B-24 Squadron Leader. “Flying an aircraft like FIFI is a huge responsibility that requires time, resources, and unwavering dedication. We couldn’t keep her flying without the passionate support of our fans who believe in preserving the legacy of the Greatest Generation.”
Supporters can contribute and follow FIFI’s restoration progress at https://fundrazr.com/FIFI_Flies?ref=cr_bE9zrf. The CAF will continue sharing regular updates via email and social media. Together, let’s bring FIFI back home—and back into the skies.
I worked on FIFI in the early 1980’s in Harlingen, Texas. I remember maintenance personnel thinking we probably couldn’t keep her flying beyond the year 2000. It just wouldn’t be possible. The fact she is still flying in 2025 is utterly amazing. The fact I am still here to read about FIFI is even more amazing!
I left my job last year after being beat down from the demand, after 14 years. The first thing I did? Take a flight on the CAF B17 “sentimental journey”. I’m quite handy with a wrench (and maintain my own classic cars), can design mechanical components in CAD, can weld, etc. I’d love to be able to utilize my engineering experience to volunteer, but it seems like every opportunity to help involves a monetary contribution. That’s just hard when you’re branching out on your own. Oh well.
My father flew 18 missions over Japan in “Abroad With Eleven Yanks.” On one mission returning to Tinian at 0100 the #2 engine caught fire. With no feathering props yet on Dad’s B-29 the fire continued getting worse. Captain Booser (despite his name, never drank Dad said) ordered all to bail. Dad was in the water 1 mile off Sipan until 1100 until a PBY Catalina rescued him.
I wonder if they can’t just disconnect the supercharger system as they shouldn’t need it when they only fly at low altitudes. I believe most if not all the B-17 still flying have the turbo charger disconnected for the same reason because less maintenance less wear and tear, etc.