◆ SpookStack

SAC, SLATTLE (164~81) 32/3/71 ASAC PAUL R. BIBLER UNSUB, aka Dan Cooper; NORTHYVEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA - HIJACKING; EXTORTION 00: SE called from Philadelphi gent who has been interviewing] | has a theory based on the fact tha lim subject appeared to be quite intelligent id not appear to be dressed for jumping. Theory is that subject _did not leave the plane until after it landed in Reno. got somcone to take him through a 727 and there are two Inspection paneis in the extreme rear of the plane, which are not readily detectable. In fact, [aia not even know about these areas. The one on e right of the stairway door in the rear of the plane, is untenable for very long because it is full of heat ducts and other materials. The one on the left has room for a man to stand along with the gear which subject had with him the other night. He would not freeze at below Level, nor would he need oxygen at that level. Leis putting this in a teletype, however, I telephoned ASAC DULINSKY in Las Vegas and asked him to determine if FBI personnel or airline personnel in their processing, inspected this compartment in Reno on 11/24/71. I_aiso called Minneapolis where If talked to the duty agent a asked hin to have Minneapolis determine LE airline personnel had been in this compartment in instant plane since it had been returned to duty and whether it showed any signs of occupancy. I told him that if they could not see if that panel had been opencd, to determine where the plane is now so that it can be inspected .- PRB:klb (3) FBI—SEATTLE b6 b7C b6 b7c DB Cooper-2943