Second Iranian Fokker in 3 days suffers gear failure

Iranian investigators are probing the second serious landing-gear incident involving a Fokker 100 in the space of 3 days after an Iran Aseman aircraft diverted to Tehran when its undercarriage only partially deployed. The aircraft had been operating the EP840 service from Tehran to Ilam March 22. As the aircraft conducted its approach to Ilam, the right-hand main landing-gear failed to extend. Attempts to recycle the landing-gear were unsuccessful and the crew, believing that only the left-hand gear had deployed, aborted the landing at Ilam. Inspection of the hydraulic system revealed that contamination in the vicinity of filter screens and the restrictor check valve in the right-hand main gear had prevented the release of hydraulic pressure, and stopped its deployment. <br/>