SINGAPORE - An aircon technician fell from the fifth storey of Yi Xiu Factory Building at Sims Avenue on Monday (April 24) evening, dislocating his left arm.

The Singapore Civil Defence Force (SCDF) said it was alerted to the incident at 65 Sims Avenue at around 6.10pm.

A man in his 30s was found lying on the parapet of the building's second level, an SCDF spokesman told The Straits Times on Tuesday.

SCDF officers rescued him using an aerial rescue platform, while SCDF's Dart (Disaster Assistance and Rescue Team) officers also deployed a lifepak as a precautionary measure.

The man, who was not wearing a safety harness when he fell, was taken to Tan Tock Seng Hospital in a stable condition.

The Ministry of Manpower was informed of a work at height incident that occurred on Monday along Sims Avenue, an MOM spokesman told ST on Tuesday.

He identified the company as Yap Servicing and Repair.

"An aircon technician was replacing an aircon compressor when he lost his balance and fell out from the window from the fifth level of the building and landed on the awning on the first level," said the spokesman. "The worker did not wear a harness. The fall caused him to dislocate his left arm. He was been warded in hospital."

MOM said installation of the air con has ceased and it is currently investigating the possible causes of the incident.

It added that companies "should ensure that their workers take the necessary precautions when working at heights".

An eyewitness who spoke to citizen journalism website Stomp said the man was unable to move after he fell.

SCDF dispatched a fire engine, a Red Rhino, an ambulance and three supporting vehicles to the scene.