Service Letter MTL-27-02: Flight Controls – Inspection of the Elevator Trim Tab Servo Bracket Assembly Phenolic Block for Chamfers
Date: January 29, 2020
Compliance – MANDATORY: This service document must be accomplished within 200 flight hours or 12 months from the date of the receipt, whichever occurs first.
Effectivity: Super King Air B200GT, Serial Numbers BY-291 through BY-350; Super King Air B200CGT, Serial Number BZ-1; Super King Air B300, Serial Numbers FL-1094 through FL-1131 and FL-1131 through FL-1180; Super King Air B300C, Serial Numbers FM-71 through FM-79
Reason: The phenolic block which is fastened to the elevator trim servo bracket may be missing the 45-degree chamfers. Blocks missing the chamfers may cause the elevator trim cable turnbuckle to touch the block, causing a catch in the elevator trim cable movement.
Labor Hours: Modification 16.0, Test and Inspection 1.0
Labor Coverage: Textron Aviation-owned and Textron Aviation-authorized Service Facilities rated to perform maintenance on the specific model of Beechcraft aircraft may submit a claim for the labor necessary to accomplish this service document …
Credit Application: After this service document has been accomplished, a claim must be submitted to Textron Aviation within 30 days of the service document completion. Claims for compliance of this service document are to be filed as a W3 type claim.
Expiration: January 31, 2021
From Multi-Engine Turboprop Communiqué 2014-02R1
Original Issued: October 2014
Revision Issued: February 2020
Revision Summary:
Note: Revision 1 of this Communiqué supersedes the entire original issue of Communiqué 2014-02.
ATA 5 – Flammable Liquid Carrying Hose Kits from HBP&D
ATA 34 – FAA AD 2014-18-01 on TDR 94/94D Transponders
ATA 54 – Bumper Block Installation
ATA 5 – Flammable Liquid Carrying Hose Kits from HBP&D, Rev. 1
All
Refer to ME-TP-02 for the latest information.
ATA 34 – FAA AD 2014-18-01 on TDR 94/94D Transponders
The FAA recently released AD 2014-18-01 addressing a possible issue with the Collins TDR 94/94D transponder part numbers 622-9352-008/108/308/408 and 622-9210-08/108/308/408. Some of these part numbers were installed in several King Air models at initial build, as well as installed through aftermarket kits. These transponders may not properly enable replies to Mode-S Only All-Call interrogations when the aircraft transitions from a ground to an airborne state. When this occurs, the transponder may not properly reply to all ATCRBS and directed Mode-S interrogations, including TCAS, after the transition. The override function is only enabled if the Aircraft Type Code Category A strapping is set to values of 2 through 6. The AD references Collins SIL 07-2 for inspection and corrective action. A copy of the SIL is attached for reference (Editor’s Note: The SIL is included in the referenced Service Letter online) and the AD can be accessed at www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/MainFrame?OpenFrameSet. To comply with the AD you will need to verify the part number of the transponders installed. If you do not have the listed part number installed no further action is required.
If you have transponders with the applicable part number installed, a review of your current wiring diagrams or a physical inspection of the aircraft wiring will determine if the changes detailed in the Collins SIL need to be taken. The excerpt below from the SIL details the strapping that would be present for each code.
|
TYPE 2 |
TYPE 1 |
TYPE 0 |
Code |
MEANING |
|
Type Set A (P1-23 = OPEN) |
||||
|
Open |
Open |
Open |
0 |
No ADS-B Category type information |
|
Open |
Open |
Gnd |
1 |
Light |
|
Open |
Gnd |
Open |
2 |
Small (15,000 to 75,000 lbs) |
|
Open |
Gnd |
Gnd |
3 |
Large (75,000 to 300,000 lbs) |
|
Gnd |
Open |
Open |
4 |
High Vortex – Large (aircraft such as B-757) |
|
Gnd |
Open |
Gnd |
5 |
Heavy |
|
Gnd |
Gnd |
Open |
6 |
High Performance (>5g |
|
Gnd |
Gnd |
Gnd |
7 |
Rotor Craft |
As delivered from the factory, all of the Pro Line 2 and Pro Line 21 King Air models equipped with these transponders were strapped to code of 0 with no connections to connector P1 pins 20, 21 or 22. This can be verified by the lack of any wiring references to those pins in the transponder wiring diagram manual 34-55-01 and 34-55-02 on Pro Line 21 aircraft and the individual serial specific transponder wiring diagrams for earlier aircraft. We do not show unused pins on most of the drawings so their absence indicates that they are not used. If the transponders are still strapped to code 0 no further action is required as the issue discussed in the AD will not be applicable when configured to a code of 0. If your installation’s strapping has been changed to a code 2 through 6, you will need to follow the directions in the SIL to reconfigure the strapping. If you have any further questions concerning the inspection please contact Textron Aviation customer support at 800-429-5372, 316-517-9355 or by email at teamturboprop@txtav.com.
ATA 54 – Bumper Block Installation, Rev 1
200 Series with Hi-Float Landing Gear/C90A
The information contained in this article has been incorporated in the King Air Structural and Inspection Manual Chapter 57.
The information provided in this column may be abbreviated for space purposes. For the entire communication, go to www.txtavsupport.com.