"because of delay" is a perfectly correct and usable phrase in written English.
You can use it when you want to explain why something didn't happen at the expected time. For example, "The shipment was received two days late because of delay at the port."
James A. Baker III told us that the world was falling apart because of delay in coming to closure in this election.
The immigration judge shall render a decision, which should be in summary form, within 5 business days after the close of the record, unless that time is extended by agreement of both parties, by a determination from the Chief Immigration Judge that exceptional circumstances make it impractical to render the decision on a highly expedited basis, or because of delay caused by the alien.
If the baby suffers asphyxia because of delay, they (parents) ask why CS was done late".
One girl was tested at 2 because of delay in motor development.
Multiple respondents were invited within some counties, often because of delay by initial contact, resulting in eventual responses by both initial and back-up contacts.
However, it is well-known that viral RNA is occasionally not detectable by RT-PCR (e.g., because of delay in specimen collection), which means that some case-patients in our study might have been misclassified as controls.
Because of delays, the subway train was bursting with riders.
Kathy Kerr, the director of sales for John Laing Homes, acknowledges that some sales were lost because of delays.
The inquest in the case heard Jones died because of delays giving her a blood transfusion.
Before Sept. 11, 2001, the government restricted operations at La Guardia Airport in New York because of delays.
