A method of repairing a high temperature solid oxide fuel cell stack comprising at least one fuel cell strip comprising: identifying a fuel cell bundle within a fuel cell strip to be disconnected from the fuel cell strip; identifying at least one fuel feed pipe portion connected to the fuel cell bundle; identifying at least one fuel outlet pipe portion connected to the fuel cell bundle; positioning a cutting blade on the at least one fuel feed pipe portion and cutting through the at least one fuel feed pipe portion to separate the at least one fuel feed pipe portion into a first fuel feed pipe portion connected to the fuel cell strip and a second fuel feed pipe portion connected to the fuel cell bundle, and positioning a cutting blade on the at least one fuel outlet pipe portion and cutting through the at least one fuel outlet pipe portion to separate the at least one fuel outlet pipe portion into a first fuel outlet pipe portion connected to the fuel cell strip and a second fuel outlet pipe portion connected to the fuel cell bundle (28', 29', 28", 29"); removing the fuel cell bundle, the second fuel feed pipe portion, and the second fuel outlet pipe portion from the fuel cell strip; inserting a replacement fuel cell bundle having a replacement second fuel feed pipe portion and a replacement second fuel outlet pipe portion into the fuel cell strip; and connecting the replacement fuel cell bundle to the fuel cell strip by: connecting the replacement second fuel feed pipe portion to the first fuel feed pipe portion with a first sealing member; and connecting the replacement second fuel outlet pipe portion to the first fuel outlet pipe portion with a second sealing member. identifying a fuel cell bundle within a fuel cell strip to be disconnected from the fuel cell strip; identifying at least one fuel feed pipe portion connected to the fuel cell bundle; identifying at least one fuel outlet pipe portion connected to the fuel cell bundle; positioning a cutting blade on the at least one fuel feed pipe portion and cutting through the at least one fuel feed pipe portion to separate the at least one fuel feed pipe portion into a first fuel feed pipe portion connected to the fuel cell strip and a second fuel feed pipe portion connected to the fuel cell bundle, and positioning a cutting blade on the at least one fuel outlet pipe portion and cutting through the at least one fuel outlet pipe portion to separate the at least one fuel outlet pipe portion into a first fuel outlet pipe portion connected to the fuel cell strip and a second fuel outlet pipe portion connected to the fuel cell bundle (28', 29', 28", 29"); removing the fuel cell bundle, the second fuel feed pipe portion, and the second fuel outlet pipe portion from the fuel cell strip; inserting a replacement fuel cell bundle having a replacement second fuel feed pipe portion and a replacement second fuel outlet pipe portion into the fuel cell strip; and connecting the replacement fuel cell bundle to the fuel cell strip by: connecting the replacement second fuel feed pipe portion to the first fuel feed pipe portion with a first sealing member; and connecting the replacement second fuel outlet pipe portion to the first fuel outlet pipe portion with a second sealing member. connecting the replacement second fuel feed pipe portion to the first fuel feed pipe portion with a first sealing member; and connecting the replacement second fuel outlet pipe portion to the first fuel outlet pipe portion with a second sealing member.