Last month, the International Air Transportation Association (IATA) issued a position statement from their special interest group on Super Absorbent Polymer or, SAP (the media used in EI 1583 filter monitor cartridges), which recommended that filter monitors be phased out of all aviation fuel handling systems. The announcement came after eight separate, documented incidents in which SAP was found downstream in engine/airframe fuel system components.
Following the initial position statement from IATA, several leading industry groups have issued their own statements. As such, Parker’s Velcon Aviation Filtration Division issued Service Bulletin 1217-1, which seeks to clarify the various current positions. The bulletin includes the collective “best practices” of IATA, A4A, JIG, and EI along with Parker’s “go-forward” actions for their EI 1583 qualified monitor elements.
The recommendations include:
- Fuel filter monitors to meet new 7th edition criteria from the Energy Institute (Implementation period TBD)
- Maximum allowable monitor vessel differential pressure-15 psid (1 bar) *This is an important reduction from the 22 psid outlined in the latest revision of ATA Spec 103.
- Differential pressure switches for use on fuel filter monitor housings
- Change all nozzle hose end strainers to 100 mesh
- Regular cleaning of the hose end strainer (final procedure and timing TBD)
This is an ongoing issue and NATA will continue to keep you updated on the latest developments as they become available.