ATA 28

Fuel System:
On January 13th, 2009, IAI released Service Bulletin 1124-28-155 Rev 2. This revision includes a wider range of options with the installation inside the contactor box and lengthens the time to accomplish the Service Bulletin. It also includes a possible replacement of the 1 amp with a ½ amp circuit breaker that would have been installed to accomplish SB 1124-24-065.

The parts required to accomplish this service bulletin can be purchased from Worthington Aviation Parts Inc. They are in a kit, part number 1124-28-155/Opt 1kit or 1124-28-155/Opt 2kit. Please contact the Westwind Sales team at 877-833-2942 or fax at 651-393-3308.

ATA 28

Fuel Distibution:
On Oct 26, 2008, IAI released SB 1124-28-155 Rev 1. This is a result of an investigation of smoke and burning of the boost pump wiring on the Westwind aircraft during maintenance. The conclusion was to replace the existing relays with units that provide better protection against overload situations. The original relays are no longer available.

The parts required to accomplish this service bulletin can be purchased from Worthington Aviation Parts Inc. They are in a kit, part number 1124-28-155/Opt 1kit or 1124-28-155/Opt 2kit. Please contact the Westwind Sales team at 877-833-2942 or fax at 651-393-3308