Instructions for Continued Airworthiness

Supplement Type Certificate (STC) No. ST01580Wi. Modifications to an aircraft obligates the operator to include the maintenance information provided by this document into the operators aircraft Maintenance Manual and operator’s aircraft scheduled maintenance program. This document defines supplementary maintenance operations and frequencies recommended by Aviation Fabricators Inc., to ensure the aircraft’s airworthiness. The information contained herein addresses the requirements specified in 14 CFR 25.1529, Instructions for Continues Airworthiness and supplements the basic Airplane Maintenance Manual only in those areas listed as pertains to the installation of divan assemblies, as installed per the Aviation Fabricators Drawing List AF-285. For limitations and procedures not contained in this supplement, consult the basic Airplane Maintenance Manual. DATA All information to support the continued airworthiness of this modification is contained in: STC ST01580WI. STC drawing list: AF-285. Installation: Installation Instructions D-10241 Parts: p/n 62-0255, RH 2 Place Side Facing Divan p/n 62-0273, LH 2 Place Side Facing Divan The divan is a self contained complete assembly that mounts to the existing seat track, using standard fittings, in accordance with FAA approved floor plans. Design Change Control All data and changes to the parts and assemblies will be tracked per STC Drawing List AF-285 Rev E or later approved revision. Applicable Aircraft Learjet models 55, 55B, 55C, 60 Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 6 of 14 2 Place Divans P/N’s 62-0255 (shown), 62-0273 Top not shown for clarity Figure 1.0A Seat Belt & Shoulder Harness Attachment SEAT BELT/ SHOULDER HARNESS TIE DOWN FITTING TRACK REF Figure 1.0B Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 7 of 14 Close-out Panel Assembly INSERT IN PANEL CLOSE-OUT PANEL CLOSE-OUT TAB ON DIVAN SCREW Figure 1.0C Underseat Drawer DIVAN FRAME DRAWER DRAWER SLIDE SCREW Figure 1.0D Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 8 of 14 2.0 INSPECTION REQUIREMENTS AND OVERHAUL SCHEDULE 1. To comply with14 CFR 25.1529, continue the new divan and restraint system on the same inspection and maintenance schedule used per the Learjet Maintenance Manual for seats and divans. a. The new divan requires no service other than inspection at normal inspection interval of 300 hours or every 12 months. b. The safety belts require no service other than inspection at normal inspection interval of 300 hours or every 12 months. c. Perform a detailed visual inspection of each bottom and back cushion and cover to detect apparent or obvious defects, deterioration in the form of wear, tears, rips, punctures or irregularities that cause the cushion assembly to become worn or distorted. Replace the cushion assembly if this cover does not fit properly or the cushion develops a “lumpy” or irregular feel. d. Perform a detailed visual inspection of each divan frame assembly including weld joints, diaphragm, fasteners and anchors, track fittings, seat belt and inertia reel assemblies to detect apparent or obvious defects, corrosion, cracks, large deformations (permanent deformation in frame tubes more than ¼ the overall thickness of the tube diameter), irregularities that cause the frame assembly and/or anchor/fitting to become distorted and not fit into the intended seat track/anchor locations. If deformities are found the divan frame assembly must be removed from the aircraft and returned to Aviation Fabricators for repair or replacement. Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 9 of 14 2. Inspection Time Limit for 2 Place Side Facing Divan Assembly Installations: 300 hour or every 12 month inspection for the divan assembly and safety belts Task Code Schedule Date Mech Insp AFI-100 a. Inspect for damage to upholstery. AFI-101 b. Inspect safety belts for wear, cuts, fraying, damage, and deterioration. AFI-102 c. Inspect safety belt attachment fittings for wear and damage AFI-103 d. Inspect foot fittings for damage, security, and function. AFI-104 e. Inspect seat frame for damage, and corrosion. AFI-105 f. Inspect overall seat for fit and function. A. The new divan and restraint system are on the same inspection and maintenance schedule used per the Learjet Maintenance Schedule for passenger seats. Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 10 of 14 3.0 DIMENSION AND ACCESS: The installation of the 2 place side facing divan assembly does not change the dimensions of the aircraft or alter the access to any existing aircraft system. 4.0 LIFTING AND SHORING No change. 5.0 LEVELING AND WEIGHING No change. 6.0 TOWING AND TAXIING No change. 7.0 PARKING AND MOORING No change. Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 11 of 14 8.0 PLACARDS AND MARKINGS Up to 4 placards are required in conjunction with this modification: 1. If optional drawers are installed, placard part number 15-0025 must be installed at the top of the face of the drawer where visible when open or closed. Figure 8.0A 2. If optional close out panels are installed, placard part number 15-0060 must be installed on the top outside of the close-out panel door so that it is visible when the door is closed. Figure 8.0B 3. For the Lifevest Storage placard part number 15-0288 must be placed in plain view of the seat occupant. Figure 8.0C 4. A placard stating “to install harness over seat occupant’s fwd shoulder” is sewn on to restraint system part numbers 3091-8-111-2396 and should be legible and easily viewed by the seat occupant. Figure 8.0D Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 12 of 14 9.0 SERVICE INFORMATION Typical Divan Service Instructions: A. Upholstery Cleaning: Divan Service Instructions 1. Remove seat back and seat bottom cushion assemblies from sidewall and divan top. 2. If possible dry clean fabric cushions. 3. If dry cleaning is not possible clean fabric with Armour All fabric cleaner or equivalent. 4. Clean leather with Armour All leather cleaner or equivalent. 5. Clean drawer and/or close-out panel finish using Armour All multi- purpose cleaner or equivalent. 6. Clean and inspect restraint system for damage or excessive wear. 7. Inspect all attachment fittings and replace if necessary. 8. Inspect overall seat for fit and function. Typical Divan Maintenance Instructions: Divan Assembly The divans are self contained complete assemblies that mount to the existing aircraft cabin seat track using standard fittings in accordance with approved floor plans. Refer to Figures 1.0A. Cushions Seat back and seat bottom cushion assemblies are removed by simply pulling the cushion inboard away from the Velcro on the sidewall or up away from the Velcro on the pan of the divan assembly, respectively. Restraint System Seat belt and shoulder harness removal is accomplished by unhooking the belt/harness from the tie down fitting hardware or by removing the tie down fitting from the existing aircraft seat track. Ref. to Figure 1.0B Closeout Panels Underseat close-out panel removal is accomplished by removing screws from under the divan that are attached to inserts in back of panel and attached through tabs on divan frame. Ref. Figure 1.0C Drawers Underseat drawers are removed from the divan by removing slide screws attached to the drawer sides. The drawer slides are removed from the divan by removing attaching screws. Figure 1.0D Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 13 of 14 B. RECOMMENDED OVERHAUL PERIODS No additional overhaul time limitations and requirements apply to the Aviation Fabricators 2 Place Side Facing Divans. Aviation Fabricators Inc. ICA Document No.: AF-487 805 North Fourth Street Revision (A) Clinton, MO. 64735 Date: July 14, 2011 Page 14 of 14 10.0 AIRWORTHINESS LIMITATIONS The Airworthiness Limitations section is FAA approved and specifies maintenance required under Sec. 43.16 and 91.403 of the Federal Aviation Regulations unless an alternative program has been FAA approved. There are no Airworthiness Limitations to the aircraft with the addition of the 2 Place Side Facing Divans installed by this STC. 11.0 TROUBLESHOOTING INFORMATION Refer to the existing Aircraft Maintenance Manual for troubleshooting the 2 place divan installations that are required beyond the information found on the installation drawing D-10241. For replacement parts or repair of damage parts: Contact Aviation Fabricators at (660) 885-8317. Troubleshooting this installation should only be accomplished by FAA approved repair stations with the appropriate ratings or appropriately rated operator/individuals, with required test equipment and service data.