Issued: February 2017
ATA 00 – General Introduction
Beechcraft and Hawker customers will notice a change in the formatting and document numbering of Model Communiqués. In an effort to streamline the brands, Textron Aviation is changing the airplane specific Model Communiqués to a broader grouping. For example, the previous King Air Model Communiqués are now the Multi-Engine Turboprop Communiqués (document reference number ME-TP-XXX). The Multi-Engine Turboprop (ME-TP-XXX) grouping applies to the King Air, Conquest I and II, and Beechcraft Commuter. The Single Engine Turboprop (SE-TP-XXX) grouping applies to the Caravan and Denali. Please note that because of this change, some communiqués may still only apply to one specific brand but will be sent to all airplanes that are covered by the Multi-Engine Turboprop heading.
ATA 11 – King Air 250 and 350 Winglet Placard
BY-122, BY-124 and after; BZ-1 and after;
FL-1 and after, FM-1 and after
The King Air 250 placard installed on the outboard side of the winglets does not have an official published part number. If the placard needs to be replaced, please place your order for the replacement via email to parts_research@txtav.com.
The transaction and billing for the placard will be made through the Technical Manual Distribution Center.
ATA 26 – Engine Fire Extinguisher Connections – Revisited
King Air Communiqué 2009-05 provided a caution in connecting the engine fire extinguisher wires to the squib to assure that the system operates as it should. This Communiqué read:
“Caution should be exercised when attaching the airplane’s wiring to the fire extinguisher squibs. The power wire should be connected to the terminal on the insulated end of the squib. The ground wire and the sensor should be connected to the side terminal. Incorrect attachment of the wiring can result in the cockpit fire extinguisher testing ‘OK’ but not firing the squib and causing the circuit breaker to open in the event of the extinguisher button being pushed.”
We would like to emphasize that if the wires are connected incorrectly the extinguisher test would still test ok, but if the flight crew needed to discharge the bottle the circuit breaker would open instead.
We have included an additional illustration and picture showing the correct connections along with procedures to verify the correct installation of each extinguisher squib wire terminals. (Editor’s Note: Illustration and picture included on the original Communiqué found online.)
Procedures:
1. or each engine fire bottle squibs the 28 VDC power wire shall be verified by connecting a 28 VDC test light lead to the removed squib power wire terminal and the other test light lead to a good fuselage grounded part or screw in the wheel well. Next, press the fire wall valve switch to close the fire wall valve and arm the fire extinguisher. The Fire EXTINGUISHER PUSH light and the test light should both light with low intensity. Next, press and hold the left fire extinguisher switch. The Fire EXTINGUISHER PUSH light should extinguish and the test light should increase in intensity.
(Test light consists of one 327 light bulb connected to two 22 gauge wires with alligator clips.)
2. he ground wires shall be tested by connecting one lead of an ohmmeter to the removed squib ground terminal wire on each squib and the other lead to a good fuselage grounded part / screw in the wheel well. The resistance value of the ground wire should be close to zero ohms.
If either of the above do not test correctly, further troubleshooting and repair is required.
Note: We will submit a Publications Change Request to add this procedure to the appropriate manuals.
ATA 30 – King Air 250 Propeller De-ice Boot Protection Circuit Kit
BB-1509 and after; BL-141 and after;
BY-1 and after; BZ-1 and after with Composite Propeller Blade STC SA02130SE
King Air Communiqué 2015-07 described a condition in which severe damage to the propeller de-ice boots can occur if the Prop De-Ice system was left ON with the engines not running. Textron Aviation has developed a kit in which power is prevented from reaching the de-ice boots if the Prop De-Ice system is left in the ON position.
The part number of the kit is 101-3301-0001 and it is applicable to serial number airplanes mentioned above.
The kit consists of replacing the engine oil pressure switch with one that will send a signal to a PCB indicating that oil pressure is present before power is allowed to flow to the de-ice boots.
ATA 52 – Emergency Exit Door Handle Spring
Due to issues on some King Air 300/B300 and 200/B200 series aircraft where the emergency exit exterior door handle was reported as not fitting flush with the door, Textron Aviation has approved use of a spring that provides more tension for holding the handle flush. The original 100942H0016-16 spring can be replaced with a 100942H0016-12 that has less active coils and provides more tension for the door handle to stay flush. This spares option will be added to the applicable Illustrated Parts Catalog in future revisions.
The above information is abbreviated for space purposes. For the entire communication, go to www.txtavsupport.com.
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