FUEL PUMP HYDRAULIC PRESSURE REDUCER - REPLACEMENT

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP89B00980R000300040028-8
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 1
• Document Creation Date: December 15, 2016
• Document Release Date: October 31, 2002
• Sequence Number: 28
• Publication Date: November 18, 1959
• Content Type: FORM

ENGINEERING STUDY ^
Lockheed Aircraft Corp.
LAC-56
CHANGE PROPOSAL
DATE
AFFECTS : WSPO PROJECT
NAME OF MAJOR COMPONENT
PART OR LOWEST SUBASSEMBLY
PART NO. & MODEL OR TYPE
Hydraulic System
Hydraulic Pressure Reducer
TITLE OF PROPOSAL : Fuel Pump Hydraulic Pressure Reducer - Replacement
NATURE OF PROPOSAL:
1. Remove Hydraulic Pressure Reducer in fuel pump drive system (Whittaker P/N 1401,55
-- and replace with pressure reducer-used-in-the-landing-gear extension system,
(Bendix 411590-42).
2. This change has been made on all aircraft that have J-75 engines installed.
3. These valves have a slight 'difference in pressure settings (Whittaker 140455
1200 -50 psi, Bendix 411590-42 : 1250 -50 psg; however, this will not effect
the performance of the fuel pump.,
4. Kits to be installed on IRAN.
REASON FOR PROPOSAL
1., This is item 0,'para. 10 of the list'of improvement items included in
'TFOG IRAN Program" dated 27 Aug. 1959.
2. 'Unsatisfactory performance, and high failure rate of Whittaker P/N 1L04550
3. To provide common usage for a single part.
ESTIMATED COST AND TIME INVOLVED :
ES
ADDITIONAL FUNDING REQUIRED
ESTIMATED COST FOR KITS OR PARTS : $146.00 per kit.
C P
ADDITIONAL FUNDING REQUIRED None (SP-1917)
ITEMS AFFECTED BY PROPOSAL
SAFETY
MISSION
EFFEC?
TIVENESS
PERFORM-
ANCE
OPERATING
PROCEDURE
INTER.
CHANGE.
WEIGHT OR
WEIGHT &
TOOLS &
SUPPORT
MAINTE.
NANCE
SERVICE
LIFE
FLIGHT
MANUAL
MAINTE.
NANCE
ABILITY
El
BALANCE
El
EQUIPMENT
El
PROCEDURE
El
A
El
MANUAL
E,
EST. MAN/HRS. REQ'D. TO ACCOMPLISH CHANGE IN FIELD
SOURCE OF PARTS FOR KIT T
AVAILABILITY
LAC
To meet IRAN schedule
DISPOSITION OF SPARES AFFECTED
1
Return to Depot g~V
INITIATED BY
APPROVED WSPO SIGN
AhAPoyed or Release 2002/11/15
CIA-RDP89B0 6 0300 -
Approved For RgIease 2002/11/15 : CIA-RDP89B00980F 000300040028-8
PAGE 1 OF
TAT