Jai Tomlinson told the Supreme Court in Darwin on Thursday he couldn't recall talking with Wright about the February 2022 crash.
Wright, the star of Outback Wrangler, has pleaded not guilty to three counts of attempting to pervert the course of justice.
The charges follow the chopper crash that killed Wright's friend and co-star Chris "Willow" Wilson on a crocodile-egg collecting mission in the Northern Territory's Arnhem Land.
Pilot Sebastian Robinson, 32, was left a paraplegic.
Prosecutors allege Wright was worried investigators would learn his choppers' flying-hour meters were regularly disconnected to extend flying hours beyond official thresholds and paperwork was falsified.
The charges against Wright do not relate to the cause of the accident and the prosecution does not allege he is responsible for the crash, Mr Wilson's death or Mr Robinson's injuries.
Mr Tomlinson, a construction contractor and helicopter pilot, was played secretly recorded conversations between him and Wright at the reality TV star's Darwin home in September 2022.
Mr Tomlinson told the court he could not remember the conversations or the context of them but did agree the recorded voices sounded like him and Wright.
Crown prosecutor Jason Gullaci SC asked Mr Tomlinson if he could hear on the covert recording Wright asking where the maintenance release was and saying "just torch the c***".
But Mr Tomlinson responded, saying "no, unlistenable ... I hear murmuring".
The witness was asked if he recalled Wright saying "CASA is chasing the original to set us up", but the witness again said he couldn't recall and had trouble making out the unclear audio.
Under questioning by Mr Gullaci, Mr Tomlinson denied destroying documents for Wright or being aware his pilots under-reported flying hours, disconnected Hobbs flying-hour meters and faked maintenance releases.
He said he couldn't remember if Wright had told him he was worried the Civil Aviation Safety Authority was closing in and wanted documents.
When asked about a secret recording of Wright saying the pressure was being put on and people might "start squealing", Mr Tomlinson said his only understanding of "squealing" was his daughters' yelling.
But Mr Gullaci put it to Mr Tomlinson it was nonsensical that at the age of 45 he did not understand that "squealing" could also refer to dobbing someone in.
The prosecutor accused Mr Tomlinson of lying about that to avoid implicating Wright out of loyalty to his friend.
"You know very well 'squealing' means giving someone up."
Mr Gullaci also accused the witness of hiding behind his constant "I can't remember" answers to avoid giving evidence that "hurts your buddy Matt Wright".
Mr Tomlinson replied he was not lying or being evasive and denied he and Wright were secretly taped "talking strategy" on how to cover up aviation safety breaches.
CASA senior investigator Rolf Kidson told the court he never saw or received the original maintenance release for the crashed helicopter from Wright despite a demand it to be produced.
Wright's lawyer informed CASA his client could not find the document, he said.
The safety authority also had concerns about witness reports that Wright on the day of the crash had unscrewed the aircraft's console and inspected wiring, Mr Kidson said.
The Crown has alleged Wright wanted to see behind the console to check if the Hobbs meter was connected or not.
The trial continues.
