Page 42 - Volume 10 Number 9

ATA 46 - XM Weather TAF Data on Pro Line 21 King Airs with XM Receiver Part Number 822-2031-002
Beginning in early 2016, Rockwell Collins began receiving reports of intermittent reception of Terminal Area Forecast (TAF) data through the XM weather receiver installed in Pro Line 21 airplanes. This data includes products such as METARs and AIRMETs. Investigation determined that the National Weather Service had increased the data package size of these messages and the current configuration of the receiver was causing a software time-out and reset before the complete data package was downloaded.
Any owner/operators experiencing this issue may utilize Rockwell Collins Service Information Letter (SIL) 523-0824074 (Editor’s Note: See SIL online with this Communiqué) to provide an updated receiver configuration that allows it to handle the new data package size. Airplanes with factory installed Fusion avionics are not affected. Pro Line 21 airplanes that have been upgraded to Fusion avionics through an STC may still have the Part Number 822-2031002 receiver and require the update. Refer to Appendix A.
ATA 54 – Nacelle Splice Plate Inspection
A new inspection requirement has been added to the Model B300 King Air Maintenance Manual. This inspection addresses the nacelle splice plates. Even though this inspection has been in the manual set for many years for other King Air models, it is new on the King Air B300 and it will eventually be added to the King Air 200 and 300 Series Maintenance Manuals as well.
Textron Aviation Technical Support has received inquiries from B300 owner/operators asking for information about the nacelle splice plates since they are not familiar with this new requirement. The purpose of this Model Communiqué is to define the scope of the inspection, provide illustrations of where the nacelle splice plates are located, provide examples of corrosion that have been found in past inspections and explain why these inspections are now required.
The nacelle splice plates are located under the nacelle turtle back. There are two per side and they run longitudinal. (Editor’s Note: illustrations provided with Communiqué on website.) For airplanes without wing lockers, the turtle back should to be removed. As an alternative, the nacelle splice plate edge may be inspected through the main landing gear wheel well. For airplanes with wing lockers, the splice plates are exposed when the lockers are removed. Model 350ER airplanes will have to deal with external fuel tanks, but the intent of the inspection is met by inspecting the edge of the part as seen through the
main landing gear
wheel well area.
This inspection
procedure is in-
cluded in the SIRM
for other King Air
models and can be
used as a reference
until the SIRM is
updated to include
this procedure in
the B300 section.
The above information is abbreviated for space purposes. For the entire communication, go to www.txtavsupport.com.
40 • KING AIR MAGAZINE
A severely corroded example.
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