ENGINE CONTROLS - THROTTLE WARNING/GEAR RETRACTION PREVENTION CAM INSPECTION/INSTALLATION

BEECHCRAFT Bonanza Series Maintenance Manual, P/N 36-590001-9A28 or subsequent revision, Chapters 20-00, 25-00, 32-30, and 32-60. BEECHCRAFT Baron 58 Shop Manual, P/N 102-590000-13E24 or subsequent revision, Sections 5 and 6. BEECHCRAFT Baron 58P/58PA/58TC/58TCA Maintenance Manual, P/N 102-590000-5A25 or subsequent revision, Chapter 32-60. K. Publications Affected It is recommended that a note “See Service Bulletin No. 76-3763, Rev. 1” be made in the following: BEECHCRAFT Bonanza Series Maintenance Manual, P/N 36-590001-9A28 or subsequent revision, Chapters 20-00, 25-00, 32-30, and 32-60. BEECHCRAFT Baron 58 Shop Manual, P/N 102-590000-13E24 or subsequent revision, Sections 5 and 6. BEECHCRAFT Baron 58P/58PA/58TC/58TCA Maintenance Manual, P/N 102-590000-5A25 or subsequent revision, Chapter 32-60. L. Interchangeability of Parts Not applicable. M. Warranty Credit Warranty credit for labor and parts to the extent noted under MANPOWER and MATERIAL will be allowed on all affected airplanes still within their standard warranty coverage. Warranty coverage offered in this Service Bulletin will expire 12 months from the last day of the month of the original issue of this Service Bulletin. After that date, the owner/operator assumes the responsibility for compliance cost. Raytheon Aircraft Company reserves the right to void warranty coverage in the area affected by this Service Bulletin until the date the Service Bulletin is accomplished by a Raytheon Aircraft Company Authorized Service Center. All warranty work must be accomplished by a Raytheon Aircraft Authorized Service Center rated to perform maintenance on the specific model of Beechcraft Airplane. All warranty reimbursements are handled through Raytheon Aircraft Company Authorized Service Centers. The owner/operator should arrange for an Authorized Service Center to perform the work and the Authorized Service Center must submit the standard Raytheon Aircraft Company warranty claim. 2. Material Information A. Materials - Price and Availability Contact a Raytheon Aircraft Authorized Service Center for information. B. Industry Support Not applicable. MANDATORY SERVICE BULLETIN Issued: February, 2006 Revised: March, 2006 SB 76-3763, Rev. 1 4 of 8 C. Airplanes The following parts required for this modification may be ordered through a Raytheon Aircraft Authorized Service Center or RAPID: Raytheon Aircraft Company expressly reserves the right to supersede, cancel and/or declare obsolete, without prior notice, any parts or publications that may be referenced in this Service Bulletin. The following materials may be obtained locally: D. Spares None. E. Reidentified Parts None. F. Tooling - Price and Availability Not applicable. 3. Accomplishment Instructions This Service Bulletin shall be accomplished as follows: NOTE Should any difficulty be encountered in accomplishing this Service Bulletin, contact Raytheon Aircraft Company at 1-800-429-5372 or 316-676-3140. Part Number Description Quantity Per Airplane MS35338-100 Lockwasher As Required AN315-3R Nut As Required MS21042L3 or 130909N29 Nut As Required Part Number Description Quantity Per Airplane SAE AMS-T-22085, Type III or equivalent Tape, Pressure Sensitive Adhesive (Masking) As Required Loctite 243 or equivalent Thread Locking Compound As Required SERVICE BULLETIN Issued: February, 2006 Revised: March, 2006 5 of 8 MANDATORY SB 76-3763, Rev. 1 A. Airplane Observe all Warnings and Cautions contained in the aircraft manuals referenced in this Service Bulletin. Whenever any part of this system is dismantled, adjusted, repaired or renewed, detailed investigation must be made on completion to make sure that distortion, tools, rags or any other loose articles or foreign matter that could impede the free movement and safe operation of the system are not present, and that the systems and installations in the work area are clean. NOTE If it becomes necessary to make adjustments to the throttle warning/gear retraction prevent switch cams, follow the procedure listed in the appropriate Bonanza Series Maintenance Manual, Baron 58P/58TC Maintenance Manual, or Baron 58 Shop manual. Flying the airplane and marking the pedestal with masking tape before starting on these Service Bulletin ACCOMPLISHMENT INSTRUCTIONS may eliminate the need to fly the aircraft if cam adjustment becomes necessary after maintenance. All Cam and/or switch adjustment should be accomplished in accordance with the procedures in the appropriate Bonanza Series Maintenance Manual, Baron 58P/58TC Maintenance Manual, or Baron 58 Shop Manual. (1) Remove all power from the airplane and disconnect the battery. Display warning notices prohibiting reconnection of airplane electrical power. (2) Gain access to the airplane flight compartment and locate the pedestal assembly. Refer to Figure 1. (3) Remove attaching hardware and the pedestal cover. Retain attaching hardware. Locate the throttle warning switch/gear retract prevent switch cams in the pedestal assembly. (4) Inspect the cam actuator rods for presence of a MS35338-100 lockwasher and AN315-3R nut on the actuator rod. Refer to Figure 2. (5) Verify that the AN315-3R nut is torqued to 18-20 inch-pounds, not to exceed 25 inch-pounds torque. If MS35338-100 lockwasher is present and the AN-315-3R nut is properly torqued, proceed to steps (7) through (13), (6) Inspect for the following conditions and correct any deficient conditions: NOTE If an MS35338-100 lockwasher is missing, mark the position of the upper nut on the actuator rod to maintain switch adjustment prior to removal of the AN315-3R nut. Refer to applicable Throttle Warning Horn Switch Adjustment procedures in Sections 5 and 6 of the appropriate Baron Series Shop Manual, or Chapter 32 of the Bonanza Series Maintenance Manual. MANDATORY SERVICE BULLETIN Issued: February, 2006 Revised: March, 2006 SB 76-3763, Rev. 1 6 of 8 (a) Lockwasher missing - If missing, remove the AN315-3R nut, install an MS35338-100 lockwasher on the throttle cam actuator rod, and reinstall the AN315-3R nut. (b) AN315-3R nut backed off of the actuator rod - Secure nut against lockwasher. (c) Proper torque - Using appropriate size torque wrench, apply 18-20 inch-pounds torque, not to exceed 25 inch-pounds torque, to the nut. (d) Repeat steps (6) (a) through (6) (c) for each actuator rod. (7) Install a new MS21042L3 or P/N 130909N29(back-up) lock nut on the end of each actuator rod. Tighten until a minimum of three threads of the throttle cam actuator rod are exposed. NOTE If locknut cannot be installed with minimum thread requirement, apply Loctite 243 thread locking compound to AN315-3R nut and omit locknut. (8) Install attaching hardware retained in step (3) and secure the pedestal cover. (9) Ensure all work areas are clean and clear of tools and miscellaneous items of equipment. (10) Reconnect the airplane battery and restore power. (11) Check freedom of movement of the engine controls. (12) Remove warning notices. (13) Return airplane to service. B. Spares Not applicable. C. Record of Compliance Upon completion of this Service Bulletin, make an appropriate maintenance record entry. SERVICE BULLETIN Issued: February, 2006 Revised: March, 2006 7 of 8 MANDATORY SB 76-3763, Rev. 1 B376301.AI B DETAIL B A DETAIL A INSPECT FOR AN315-3R NUT ADD MS35338-100 LOCKWASHER(IF MISSING) ADD MS21042L3 NUT P/N 50-364129-9 LOW THROTTLE GEAR RETRACT PREVENT SWITCH CAM P/N 50-364129-BSC GEAR WARNING SWITCH CAM BARON MODEL SHOWN, BONANZA MODEL SIMILAR BARON PEDESTAL ASSEMBLY SHOWN, BONANZA PEDESTAL ASSEMBLY SIMILAR, BUT WITH FEWER THROTTLE LEVERS Throttle Warning/Gear Retraction Prevention Cam Inspection/Installation Figure 1 MANDATORY SERVICE BULLETIN Issued: February, 2006 Revised: March, 2006 SB 76-3763, Rev. 1 8 of 8 Inspection of Throttle Warning Switch/Gear Retract Prevent Switch Cams for Proper Hardware and Torque Figure 2