quote from Aviation Herald:
A Malaysian Airlines Boeing 737-400 registration 9M-MMR had arrived from Kuala Lumpur (Malaysia) and was waiting at Kuching's (Malaysia) gate 05 for the departure to Kuala Lumpur, when the left inner wing spar structure gave way permitting the left main gear to tilt out of position leaving the airplane resting on the nose gear, right main gear and the left hand engine. Parts of the assembly were pushed through the upper surface of the wing. The airplane sustained substantial damage, no injuries occured.
"...spar structure gave way.." would have been disasterious in flight....
Some maintenance issues?