(UNTITLED)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP66B00664R000600060078-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 14, 2016
• Document Release Date: October 9, 2002
• Sequence Number: 78
• Publication Date: July 2, 1964
• Content Type: CABLE

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ATiO roved For Release 200. 0 6 066
''AT 1005Z 02 JUL 64
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1. T 4Y- MALFUNCOT ION CAUSING AUO T ON MSN 134 C OCCURED TWO H(0 U.RS
PLUS 21 MIN AFT TAKE OFF. THE INDICATIONS TO THE PILOT WERE AS
FO LLO W 5:
A. THE BATTERY DISCHARGE LIGHT ILLUMINATED FOR 5 SECONOS0
THE LOADMETE'R SHO JED A STEADY .5
APPEARED ON THE GYRO HORIZON
eo THE OFF FLAG
D A RATHER BRISK LEFT WING AND NOSE DOWN MOMENT WAS INTRODUCED
BY THE AUTO PILOT JUST PRIOR TO AN AUTOMATIC DISNNGGAGEMENT.
E. THE PILOT LEVELED THE AIRCRAFT AND SELECTED NO0 2 INVERTER.
F. THE LOADMETER RETURNED TO NORMAL of r ,25
0. AUTO PILOT ENGAGE KNOB WOULD TURN TO ON POSITION BUT NO AUTO
PILOT FUNCTIONS WERE AVAILABLE. ALL OT HE' INVERTER POWERED
INSTRUMENTS EXCEPT AUTO PILOT OPERATED NORMAL ON NO. 2 INVE TERM
H. MSN WAS ABORTED DUE TO AUTO PILOT.
2. AFTER THE AIRCRAFT LANDED MAINTENANCE INSPECTION REVEALED THE
FOLLOWING:
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 Approved For Rel se 2002/10/29 : CIA-RDP66B00664R 600060078-4
( IN 861-326) S E C R E T PAGE TWO
A. THE AUTO PILOT YAW SYNCHRONIZER, P/N 83130-R492?2, WHICH IS
A SEALED UNIT WAS FOUND SHORTED OUT. WHEN THE UNIT WAS REMOVED
EITHER BROKEN OR LOOSE PARTS COULD BE DETECTED INSIDE WHEN THE
SYNCHRONIZER WAS MOVED FROM SIDE TO SIDE. THIS SYNCHRONIZER IS A
COMPONENT OF THE MAIN AMPLIFIER WHICH WAS INSTALLED 2.6 HRS PRIOR
TO THIS FLIGHT. OPERATION WAS SATISFACTORY ON PRIOR SHAKEDOWN FLIGHT
AND ON MSN 134C UNTIL LOOSE PARTS CAUSED. A SHORT. WE HAVE NO WAY
KNOWING HOW THE PARTS INSIDE WERE BROKEN OR BECAME LOOSE BUT
SUSPECT ROUGH HANDLING. THIS UNIT HAS BEEN CARRIED AS A SPARE
SINCE MARCH 64 AND HAS BEEN MOVED SEVERAL TIMES INCLUDING A VERY
ROUGH TRUCK RIDE FROM
B. WE BELIEVE THAT THE EXCESSIVE ELECTRICAL LOAD AND FAILURE OF
THE NO. 1 INVERTER WAS CAUSED BY THE SHORT IN THE YAW SYNCHRONIZER.
3. THE MAIM AUTO PILOT AMPLIFIER AND THE NO. 1 INVERTER HAVE BEEN
REPLACED, AND BOTH UNITS INDICATE NORMAL OPERATION ON GROUND
CHECKS.
END OF MESSAGE
Approved For Release 2002/10/29 : CIA-RDP66B00664R000600060078-4
S F C R E T