20010415006539I

(-23) The PIC is a flight instructor who was conducting a complex, high performance checkride of a private pilot. While having the private pilot demonstrate an emergecny gear extension. It was noted that the emergency gear handle was extremely difficult to pump, and the down and locked annunciator light was not illuminated. The main landing gear could be seen in the down and locked position. The PIC then elected to reset the gear cb and attempt a normal gear extension, with no success. Numerous attempts were made to extend the landing gear, all unsuccessful. A successful emergency landing was made at bfi with the main landing gear down and locked and the nose landing gear retracted. Post incident investigation revealed that the nose gear was unable to extend due to the LH gear door binding on the lower fuselage skin panel, preventing the doors from opening. Several rivets had pulled through the outer skin panel, causing the skin panel to separate from the structure therefore interfering with the nose gear door.