検索したらJoe Kirby, The Lockheed Plant, (2011)　が出てきた
持ってないけどGoogle Booksで読める部分から
p.61
"The first task for the new plant was to recondition 130 World War II―era B-29s for the Korean War.
They had been mothballed in desolate Pyote, Texas. Sherman Martin, seen here in the 1980s,
headed the team that chose the best of them to be flown back to Marietta.
But the engines proved so unreliable after the years in the desert
that Lockheed began shipping them to Marietta separately.
"Slave" engines were attached so the planes could be flown back."

p.15
"One of the returning B-29s is reconditioned in the nearly empty plant in May 1951.
The planes were washed, partly dismantled, and then reassembled.
Parts were inspected, repaired, or replaced, and much of the electronic"
equipment was upgraded."

と再整備作業中のB-29の写真付きで出てる（書名で検索してみてくれ）

最終的に何機が現役復帰したのかはわからないけど、>>61の言うような
「パイロットが再生機の様な危険な機体への搭乗を拒否」するような
いい加減な作業ではなかったようだよ

ひょっとすると「拒否」というのはp.61の再整備工場への
移動作業の件なのかもしれないけど