Date:	5-15-2011
Number of Hours:	1.50
Brief Description:	Rear Spar prep part #5
I cleoced every second hole and inserted the appropriate rivet as called out in the plans. I also dimpled the flanges prior to riveting where the doublers lay. For the W-707F, many folks machine countersink, but I have read that dimpling creates a stronger joint, so, that's what I did. I left out the rivets in the rear spar as per the plans , but did rivet one that shouldn't have been riveted. I removed that along with two other rivets that had to be replaced. Over all, I'm pretty satisfied with the results. Onto the ribs!