The phrase "a certain aircraft" is correct and usable in written English.
It can be used when referring to a specific aircraft without naming it directly, often in contexts where the identity of the aircraft is either unknown or not important to the discussion.
Example: "During the investigation, the team focused on a certain aircraft that had been reported missing."
Alternatives: "a specific aircraft" or "one particular aircraft".
Meanwhile, the importance analysis of a stiffening rib of the wing leading edge in a certain aircraft also verifies its good engineering applicability.
In this paper, a certain aircraft gear pump as the research object, aim at the typical failure forms, gear contact fatigue, of gear pump, proposing the prediction method based on the virtual simulation.
"In the past, a program manager would look at an earlier aircraft program and estimate by analogy, but now we can go beyond that and use parametrics to go beneath the surface to the underlying reasons why a certain aircraft costs what it does to develop," said Ricardo Valerdi, a researcher at MIT's Lean Aerospace Initiative (LAI) who developed the new model.
According to One Day in September - an Oscar-nominated documentary which is to be released in Britain in May - Bonn indicated to the terrorist group that it would give in to their demands should a certain aircraft - carrying no women and children - be hijacked.
And now we know more about where flight attendants sleep, at least on a certain aircraft.
In addition: Many budget airlines operate a certain aircraft (e.g. Southwest and the Boeing 737 variants. It is rare, though not unheard of, for budget airlines to operate wide-body aircraft.
(Property with longer production periods and certain aircraft get an extra year of special treatment). Over the following five years, the amount of bonus depreciation decreases by 20percentt, until the provision sunsets in 2027 — unless, of course, another Congress revives it.
The UK authorities – the Comet had been a British aircraft – moved to make the fitting of recorders compulsory, with the US issuing a mandate for its fitting on certain aircraft.
"In addition to the revised financing arrangements, the previously announced asset disposal programme and the sale of Thomas Cook India, the group is exploring a possible sale and leaseback of certain aircraft".
The dismissal came after EPA issued a final endangerment finding in July 2016 for certain aircraft greenhouse gas emissions.
Under the scheme, DfID would "pre-pay" for a guaranteed number of flight hours on certain aircraft.
