Fernando Alonso was forced back into the McLaren garage after just a single installation lap this morning, with Honda diagnosing an issue with the engine's oil system.
The problem is apparently located at the front of the V6 hybrid power unit which would require a proper dismantling of the engine in order to further investigate the issue.
"We have an oil systems issue which requires a full investigation," said a Honda spokesperson.
"We plan to run again today, but due to the difficult access location it will take several hours to resolve."
Red Bull's RB13, with Daniel Ricciardo behind the wheel, also had a troublesome debut with the car stopping out on the track after a handful a laps, halted by a benign sensor issue, and bringing the red flag.
Red Bull is expected to rejoin the session shortly however.
GALLERY: F1 drivers' wives and girlfriends
Keep up to date with all the F1 news via Facebook and Twitter
Lewis Hamilton: Australian GP – Albert Park Lewis Hamilton’s very first Grand Prix weekend…
One driver has a hugely famous name, the other is a special Grand Prix winner,…
As the Ferrari factory in Maranello glows in festive crimson, a sense of anticipation hums…
Lando Norris had just done the hardest thing in motorsport – winning the Formula 1…
A veteran of 41 Grands Prix starts, Howden Ganley - seen here above hitting a…
Ferrari’s Charles Leclerc may not have ended the season with a silver trophy in hand,…