Source: Simon Hradecky | www.avherald.com

A Jazz Canadair CRJ-900, registration C-GJAN performing ferry flight QK-7134 from San Diego,CA (USA) to Vancouver,BC (Canada) with 2 crew, was descending towards Vancouver when the flight crew received an aft lavatory smoke indication. The captain stepped out of the cockpit and saw visible smoke from the aft lavatory. The crew worked the related checklists which included pulling the circuit breakers for the lavatory, the smoke indication ceased. The crew declared PAN PAN and continued for a safe landing. The aircraft taxied to a hangar, emergency services boarded the aircraft and did not see any smoke but perceived the smell of smoke.

The Canadian TSB reported maintenance found chaffing in the cabin overhead lighting wiring at row 27 D/F, the wires were contacting the lavatory enclosure. The wires were adjusted for clearance and protected from outside contact.