Thank you Beachfront. From the article:
"A Qantas spokeswoman confirmed that flight QF692 "performed a routine air-turn back … due to an indication that one of their landing gear doors failed to retract".
"The aircraft (a Boeing 737-800) landed without incident and all passengers were accommodated on other flights. There was no safety risk at any time," she said."
Fortunately there appear to have been no cabin crew working in that galley at the time and who might differ on the subject of "safety risk". They might even wonder a bit at the spokeswoman's aircraft identification skills.
But what a shame it's all been revealed; this thread could have gone on for at least another twenty pages!