Document date 4 April 1973AIDates: machine-written — generated by an AI model from the transcripts, and it can be wrong. The scan is the source; the transcript is machine-generated from it.
FBI 164-81, Vault Part 112 p. 542 (DB Cooper-51434), Airtel, dated 4 Apr 1973, serial SE 164-81-4583 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-112/pages/542
The scan is the source; the transcript is machine-generated from it.
4/4/73
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AIRTEL AIR MAIL
TO: SAC, MINNEAPOLIS (164-73)
FROM: SAC, SEATTLE (164-81) (P)
SUBJECT: NORJAK
OO: SEATTLE
RE: SUB RALPH MULVIHILL
SUB 479
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Sub 479
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MULVIHILL is being considered as a suspect in
this case because he participated in a test of the air stairs
on the 727 conducted by the Boeing Company in 1963-64.
It is noted that MULVIHILL's Boeing Personnel File was not
available for review. One of the personnel participating
in the above described tests, whose file was available was
named RONALD LEE MULVIHILL.
All attempts to locate RALPH MULVIHILL at Seattle
negative. Credit and criminal checks regarding RONALD LEE
MULVIHILL at Seattle negative.
The Boeing Personnel File for RONALD LEE MULVIHILL
was reviewed and the following information obtained:
Date of Information 6/7/68
Name RONALD LEE MULVIHILL
DOB 8/2/38
Sex Male
Race Caucasian
Height 6'3"
Weight 185 lbs.
SSAN 477-42-0297
Occupation Riveter's Assistant