Breakdown of Preservative Fluid MIL-PRF-46170 in Aircraft Hydraulic Systems

reportActive / Technical Report | Accession Number: ADA389225 | Open PDF

Abstract:

This document summarized a series of laboratory tests performed to identify material forming on hydraulic system filters of fleet aircraft. Additional information obtained from outside sources is also summarized for background. Laboratory pump testing showed rapid filter dogging with small amounts of preservative fluid MU-PRF-46l70 in the system. Similar conditions with 100 hydraulic fluid MIL-PRF-83282 did not clog filters at these rates. Preservative fluid at elevated temperatures showed breakdown, increase in acid number, and chemical attack of test coupons while hydraulic fluid alone does not degrade. Preservative fluid is not compatible with operating aircraft hydraulic systems.

Author(s):
Moorman, Jeffrey W.
Author Organization(s):
NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD
Descriptive Note:
Technical rept.
Supplementary Note:
--Original contains color plates: All DTIC reproductions will be in black and white. DOI: 10.21236/ADA389225
Pagination:
0040

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NAWCADPAX/TR-2000/59
Monitor Series:
NAVAIR***
 Subject Terms
Joint Capability Areas:
JCA_6.4.1_Secure Information Exchange; JCA_6.4_Information Assurance; JCA_6_Net Centric; JCA_4.3_Maintain; JCA_8_Building Partnerships; JCA_8.2_Shape; JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.5_Lessons Learned; JCA_4.3.1_Depot Maintenance; JCA_8.2.1_Partner with Governments and Institutions; JCA_8.2.2_Provide Aid to Foreign Partners and Institutions; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means
Communities of Interest:
Air Platforms
Descriptor(s):
*AIRCRAFT EQUIPMENT, *HYDRAULIC EQUIPMENT, TEST AND EVALUATION, CORROSION, HIGH TEMPERATURE, CHEMICAL WARFARE, FLEETS(SHIPS), CONTAMINATION, PRESERVATION, PUMPS, ACIDS, MATERIAL FORMING, HYDRAULIC FLUID FILTERS
Field(s)/Group(s):
Aircraft
Report Date:
2001 Mar 29
Creation Date:
2001 May 16