1. SAP
Migration

2. SAP Migration Super Absorbent Polymer
Used for the manufacturing fuel filters designed to remove particulate and free water, i.e.CDF

3. IP/EI warning Oct 06
WARNING ON USE OF AVIATION FUEL FILTER MONITORS (FUSES) ‘QUALIFIED TO’ IP TH EDITION OR EARLIER EDITIONS
FILTER MONITORS ‘QUALIFIED TO’ IP TH EDITION OR EARLIER EDITIONS CANNOT BE REGARDED AS FAIL-SAFE DEVICES FOR PREVENTING WATER BEING DELIVERED TO AIRCRAFT
IT HAS ALSO BECOME APPARENT THAT WATER ABSORBENT POLYMER FROM SUCH ELEMENTS MAY MIGRATE DOWNSTREAM AND CONTAMINATE AIRCRAFT FUEL SYSTEMS

4. CF Risk Assessment
Risk assessment procedure and Record of Airworthiness Risk Management (RARM) initiated in July 2007 and approved by DGAEPM/DTAES in 2008,
 Outcome of RARM judged the situation as low risk and low probability based on current CF fuel handling procedures,
Emphasized good fuel practice and elimination of free water from fuelling systems and equipment,
Replace filter cartridge containing SAP media (CDF/Aquacon™) with a filter elements without polymer material,
This recommendation affects fixed fuel infrastructure, mobile equipment and portable filtration systems.

5. API/IP 1581 5th Edition Three Stage Vessel
API/IP th Edition Vessel with 3rd stage monitors – A horizontal version of this vessel is in use at Port Authority of NY & NJ & with DND in Canada
2nd STAGE SEPARATORS
OPTIONAL 3RD STAGE MONITORS
COALESCERS
OUTLET
INLET

6. IP 1583 4th Edition Cartridges
Velcon’s
IP th Edition Cartridges
ACO-6xx01L
ACI-6xx01L
CDF®-2xxK*
CDF®-2xxKR*
CDF®-2xxN
For the 6-inch designs we have transitioned from the K series to the L series, due to a change in materials.
*Please note – as of December 2006, N-Series cartridges will replace K-Series cartridges.

7. Water Absorbing Monitor (CDF)
These filter elements used in filtration systems contain a polymer incompatible when exposed to water/FSII additive

8. Cause of Contamination
Monitors SAP + FSII/water may create gel-like substance
*****CAUTION*****
In fuels containing anti-icing additive (Di-EGME, FSII, Prist®), stagnant water bottoms can absorb large amounts of the anti-icing additive. This water/FSII solution can disarm water-absorbing elements allowing water to pass downstream *Velcon

9. SAP Contamination

10. Recommendation
- FOW to replace CDF in all filter vessels used in mobile and fixed infrastructure equipment,
Qualification Testing for RT (18000 L) vessel conducted at Velcon in July 2008

12. Recommendation Good Housekeeping is essential
1. Drain vessel daily to remove water,
2. Change out of filter elements at 15 psid or when time expired,
3. Inject anti-icing additives after filtration whenever possible if using CDF cartridges.

13. TRT w/AQUACON™

14. TRT - Proposed
Change from Aquacon™ to two stage filter vessel, I.e. Coalescer/Separator,
Retrofit current filter vessels on TRT or replace them,
Current vessel would be Flow Rate limited to gpm,
1 Wing HQ and DSVPM need to conduct trials to determine way forward,
ETB December 2008.