The 6.5 million increase in adjusted operating income from OES was primarily due to higher revenues partially offset by higher operating expenses, which included higher reimbursable expenses of 2.5 million, as well as higher training and travel, subcontractor, and repairs and maintenance costs of 1.2 million each.

Aug 6, 2025 / CFO / receipt, needs a key / Jennifer Whalen, CFO | earnings call 2025-08-06 | transcript 67df607d-0558-4bb9-8390-9198daca4d84 | chars 4082-4397 | segment 4

Operating expenses were $9.6 million lower due to lower operating personnel costs as a result of the finalization of a labor agreement in the UK in the third quarter, lower fuel costs due to fewer flight hours and decreases in global fuel prices, and lower repairs and maintenance costs primarily due to decreased power by the hour or PBH expenses.

Feb 27, 2025 / CFO / receipt, needs a key / Jennifer Whalen, CFO | earnings call 2025-02-27 | transcript d213a223-f6a8-44f7-8a6e-af7b4352be2f | chars 4189-4537 | segment 4