Part 94, page 131
DB Cooper-42190Serials SU 164-14
Document date 12 April 1972
Another copy of this document is the primary, most legible copy: read it.
FBI 164-81, Vault Part 94 p. 131 (DB Cooper-42190), Teletype, dated 12 Apr 1972, serial PD 164-41-939 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-94/pages/131
Transcript
The scan is the source; the transcript is machine-generated from it.
SU 164-14 PAGE THREE
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INSTURCTING PILOT TO FLY AT NOT MORE THAN TEN THOUSAND FEET, WITH FLAPS AT FIFTEEN DEGREES, THE LANDING GEAR DOWN AND REAR STEPS OF PLANE ALSO DOWN, PLANE INVOLVED BEING BOEING SEVEN TWO SEVEN, A TRI-JET, WITH STAIRS AT REAR. HIJACKER FINALLY AGREED TO HAVING STEPS RAISED. (IT IS NOTED BOEING SEVEN TWO SEVEN AIRCRAFT UNABLE TO TAKE OFF WITH STAIRS IN LOWERED POSITION. HOWEVER IN ORDER FOR STAIRS TO BE LOWERED IN FLIGHT, IT IS NECESSARY THAT REAR PRESSURED DOOR BE IN OPEN POSITION ON TAKE-OFF.)
CONTINUING IN NORJAK, STEWARDESS REMAINED IN CABIN WITH HIJACKER, AND HIJACKER HAD STEWARDESS SHOW HIM HOW TO LOWER STEPS AND ORDERED HER TO GO TO FIRST-CLASS SECTION. UAL CASE, HIJACKER ORDERED STEWARDESS TO GO TO FRONT SECTION OF PLANE AND DID NOT REQUIRE INSTRUCTIONS AS TO HOW TO OPERATE LOWERING MECHANISM OF REAR STAIRS.
NORJAK CASE, PLANE CAPTAIN IN CONTACT WITH HIJACKER BY INTER- COM AND JUST PRIOR TO FINAL COMMUNICATION WITH HIJACKER, CAPTAIN HAD SIGNAL INDICATING STARS HAD BEEN LOWERED.
UAL CASE, PLANE CREW ON OXYGEN FLYING AT SIXTEEN THOUSAND END PAGE THREE
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DB Cooper-42190