From Mandatory Service Bulletin MTB-34-02
Navigation – FDSA Software Update
Date: September 13, 2019
Effectivity: King Air Model C90GTi, Serial Numbers LJ-2129 through LJ-2169; Super King Air Model B200GT, Serial Number BY-207, BY-239, BY-250 through BY-364; Super King Air Model B200CGT, Serial Number BZ-1; Super King Air Model B300, FL-954, FL-1010, FL-1031 through FL-1203; Super King Air Model B300C, FM-66 through FM-83.
Reason: To correct TCAS Fly-To cues that are currently presented relative to the horizon on the PFD but should be presented relative to the aircraft symbol. This could result in incorrect visual cues to the flight crew.
Description: This service bulletin provides instructions to install updated FDSA software.
Compliance – Mandatory: This service document must be accomplished within 600 flight hours or 12 months from receipt, whichever occurs first.
A service document published by Textron Aviation may be recorded as completed in an aircraft log only when the following requirements are satisfied:
- The mechanic must complete all of the instructions in the service document, including the intent therein.
- The mechanic must correctly use and install all applicable parts supplied with the service document kit. Only with written authorization from Textron Aviation can substitute parts or rebuilt parts be used to replace new parts.
- The mechanic or airplane owner must use the technical data in the service document only as approved and published.
- The mechanic or airplane owner must apply the information in the service document only to aircraft serial numbers identified in the Effectivity section of the document.
- The mechanic or airplane owner must use maintenance practices that are identified as acceptable standard practices in the aviation industry and governmental regulations.
No individual or corporate organization other than Textron Aviation is authorized to make or apply any changes to a Textron Aviation-issued service document or flight manual supplement without prior written consent from Textron Aviation.
Textron Aviation is not responsible for the quality of maintenance performed to comply with this document unless the maintenance is accomplished at a Textron Aviation-owned Service Center.
From Service Letter MTL-21-01
Air Conditioning – Inspection of the Cabin Altitude and Differential Pressure and the Cabin Rate of Climb Indicators for Installed Shipping Plugs
Date: September 10, 2019
Effectivity: King Air Model 100, Serial Numbers B-1 through B-247; King Air Model B100, Serial Numbers BE-1 through BE-137; King Air Model 200/B200, Serial Numbers BB-2 through BB-2021; King Air Model 200C/B200C, Serial Numbers BL-1 through BL-171; King Air B200GT, Serial Numbers BY-1 through BY-351; King Air Model B200CGT, Serial Number BZ-1; King Air Model 300, Serial Numbers FA-1 through FA-230, FF-1 through FF-19; King Air Model B300; FL-1 through FL-1182, FL-1184 and FL-1187; King Air Model B300C, FM-1 through FM-80 and FN-1; King Air Model 90 (Models 65–90, A90, B90 and C90), LJ-1 through LJ-2162 and LJ-2164; King Air Model E90, LW-1 through LW-347; King Air Model F90, LA-2 through LA-236.
Description: This service document provides instructions to inspect the cabin altitude and differential pressure and the cabin rate of climb indicators for installed shipping plugs and remove, if found.
Compliance – Recommended: This service document should be accomplished at a scheduled maintenance period or inspection.
A service document published by Textron Aviation may be recorded as completed in an aircraft log only when the following requirements are satisfied:
- The mechanic must complete all of the instructions in the service document, including the intent therein.
- The mechanic must correctly use and install all applicable parts supplied with the service document kit. Only with written authorization from Textron Aviation can substitute parts or rebuilt parts be used to replace new parts.
- The mechanic or airplane owner must use the technical data in the service document only as approved and published.
- The mechanic or airplane owner must apply the information in the service document only to aircraft serial numbers identified in the Effectivity section of the document.
- The mechanic or airplane owner must use maintenance practices that are identified as acceptable standard practices in the aviation industry and governmental regulations.
No individual or corporate organization other than Textron Aviation is authorized to make or apply any changes to a Textron Aviation-issued service document or flight manual supplement without prior written consent from Textron Aviation.
Textron Aviation is not responsible for the quality of maintenance performed to comply with this document unless the maintenance is accomplished at a Textron Aviation-owned Service Center.
From Multi-Engine Turboprop Communiqué # ME-TP-0016
Date: September 2019
ATA 34 – Phase 3 B200GT and B300 King Air Pro Line Fusion Radar RTA-4122 Non-Volatile Memory Reset
Phase 3 Fusion aircraft equipped with the Collins Aerospace MultiScan RTA-4112 radar have internal non-volatile memory (NVM) which captures component diagnostic data.
The NVM in the Radar Transmitter Antenna (RTA) currently has the potential to lock up when 991 entries are stored. When this lock up occurs, the radar will display a continuous WXR Fault and will need to be returned to Collins for the NVM to be cleared. Collins estimates that in normal operation the limit could be reached in approximately 330 flight legs. Collins has identified the root cause and will release Service Bulletin (SB) 8 for the RTA in mid-2020 to correct the issue. In the interim, to prevent the NVM from reaching this limit, Collins has released information document (IDOC) 0168-19 titled “Information and Usage of the RTA-41XX NVM Erasure Tool.” The IDOC provides procedures and lists equipment which will allow the NVM to be cleared in the field prior to it reaching its limit precluding removal of the RTA for clearing. Textron Aviation is recommending that aircraft with RTA-4122 have the NVM cleared during routine inspections until SB 8 is released and incorporated. The RTA-4122 was installed in production as standard equipment beginning at FL-1161 and was a factory option on BY-324 and after. Any phase 3 B200GT, B200CGT, B300, B300C aircraft could have also had the radar installed post-delivery.
ATA 52 – Cabin Door Channel Part Number 50-430043-1329 Cracking
All
[Textron Avi-ation] continues to receive reports that channel part number 50-430043-1329 is cracking. This channel is located at the cabin door hinge as shown in the picture above. When this channel cracks it causes damage to the hinge. This condition is more prominent on airplanes equipped with only one handrail cable although it can also occur on airplanes with the dual cabin door handrail if the cables are not rigged so that both cables can share the load of passengers using the door.
Textron Aviation has developed a channel made from heavier material that can be used to replace the current channel. The procedure and part number of the new channel can be found in the King Air Structural Inspection and Repair Manual Chapter 52-00-01.
The information provided in this column may be abbreviated for space purposes. For the entire communication, go to www.txtavsupport.com.