racedo,
The task was generated "in-Theatre" utilising "in-Theatre" assets; the number of Pax would have required 2 Puma's or 1 Chinook. To put it another way; the ability to respond to 2 separate incidents at the same time would have to be sacrificed if the Puma's were utilised whereas the use of the Chinook would carry all Pax in one airframe. No request was made for fixed wing Transport Aircraft to perform the task.