The phrase "a fairly common occurrence" is correct and usable in written English.
You can use it to describe an event or situation that happens often or is typical in a particular context.
Example: "In urban areas, traffic jams are a fairly common occurrence during rush hour."
Alternatives: "a relatively frequent event" or "a quite typical situation."
Fiona Lakin of Live Entertainment said it was a "fairly common occurrence that Madonna is on-stage late".
If a monitor is unable to observe a player or players, a preapproved designee can take over, a fairly common occurrence.
He suggested that the cord might have become retethered — a fairly common occurrence — and that a second operation might be advisable.
"Wow, jinxing batsmen and bowlers from the commentators chair is a fairly common occurrence, but jinxing the weather that efficiently has got to be a record.
The flutist, Mathieu Dufour, had been on leave and was performing with the Philharmonic temporarily — a fairly common occurrence when first-chair players are considering a move.
Mudflows are a fairly common occurrence because sediment yields are high in arid and semiarid areas, and the soil lacks the binding effect of continuous vegetation cover.
The last cartoon I saw before I continued on my way showed a group of men talking about what happens in the halls of official power in Beijing a fairly common occurrence in a year like this.
It also provides an opportunity to mourn peers who have died a sad but fairly common occurrence amongst this demographic.
Later, when Hadley pressed Dr. Bright in her email to explain what he saw that made him rule out MSA, he relied on statistical data and evidence from his own experience, citing the fairly common occurrence of young onset Parkinson's and the fact that he'd never seen a case of MSA in someone under forty.
Whatever the reason, epic mayhem along San Francisco's most famous span is a fairly common cinematic occurrence.
