Commemorative Air Force Provides Update on FIFI B-29 Superfortress Engine Repairs

The Commemorative Air Force has shared a critical update on the B-29 Superfortress FIFI, one of only two airworthy examples of its kind. After discovering a serious engine issue earlier this year, the CAF was forced to delay the start of the 2025 AirPower History Tour. Now undergoing repairs led by expert technicians and volunteers, FIFI’s return to flight depends on public support to help cover the extensive restoration costs.

Moreno Aguiari
Moreno Aguiari
FIFI parked in front of the CAF Headquarters in Dallas, TX. Photo via Commemorative Air Force
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PRESS RELEASE

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.

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A crew member works on ‘Fifi,’ a Boeing B-29 Superfortress, during preparation for the September 25, 2020, Arsenal of Democracy flyover of Washington, D.C., to recognize the 75th anniversary of Victory in Europe Day. Seventy warbirds will fly over the National Mall in two-minute intervals from the slowest to the fastest. The event was rescheduled from May 7 because of the coronavirus pandemic. AOPA Photo by David Tulis.

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.”

B 29 FIFI Crew members

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.

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Photo by Kevin Hong
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Born in Milan, Italy, Moreno moved to the U.S. in 1999 to pursue a career as a commercial pilot. His aviation passion began early, inspired by his uncle, an F-104 Starfighter Crew Chief, and his father, a military traffic controller. Childhood adventures included camping outside military bases and watching planes at Aeroporto Linate. In 1999, he relocated to Atlanta, Georgia, to obtain his commercial pilot license, a move that became permanent. With 24 years in the U.S., he now flies full-time for a Part 91 business aviation company in Atlanta. He is actively involved with the Commemorative Air Force, the D-Day Squadron, and other aviation organizations. He enjoys life with his supportive wife and three wonderful children.