An emergency airworthiness directive (AD) has been issued on the PZL Warszawa-Okecie PZL-104 Wilga light utility aircraft after the pin fastening the tailplane to the fuselage failed during an engine ground run.

After the incident involving a Polish Wilga 35, authorities made mandatory a PZL service bulletin requiring replacement of the connector pin and bushing.

The AD mandates replacement of the components before further flight and establishes a life limit of the parts which requires repetitive replacement every 650h.

An emergency AD has also been issued on the Eurocopter AS350B3 after the in-flight loss of the tail rotor driveshaft forward fairing heatshield due to cracking. The AD requires visual inspection of the heatshield attachment area before the first flight of each day. In addition, within 50 flight hours and after every 50h thereafter, the fairing must be removed and heatshield inspected for cracks.

Source: Flight International