An unexplained mix-up at a repair station caused a Canadian British Aerospace Jetstream 31 operator to return an aircraft to service with expired landing gear components, prompting Transport Canada (TC) to warn other operators to double-check their records.

The issue, outlined in a TC safety alert, focuses on a 2006 airworthiness directive (AD) issued by the European Aviation Safety Agency and adopted by TC that established life limits for certain main and nose landing gear components. 

Transport Canada says an operator reviewing records for a flight permit discovered the expired components. “The landing gear had recently been overhauled and returned with the time-expired components installed,” the agency explains. “It would appear that the overhaul shop assumed the operator would replace the components or had misinterpreted the Airworthiness Directive that mandates the specific life limits.”

The regulator investigated further, and discovered that the unnamed gear overhaul shop may have made similar mistakes on other shipsets.

“Transport Canada recommends that all operators of BAE Series 3100 and 3200 aeroplanes inspect their . . . records that pertain to past gear overhauls to ensure compliance with EASA AD 2006-0087 and BAE [Service Bulletin] 32-JA981024,” the regulator says.

The Aviation Week Intelligence Network’s Fleets database shows 33 J31s and 32s operating in Canada—about 30% of the global fleet of 108 in service.