Airworthiness Directives Service Bulletins AD Subject Applicability
Twin Commander 690A · Service Bulletins
Overview
This document is a service bulletin and airworthiness directive for the Twin Commander 690A aircraft. It provides a cross-reference list of various airworthiness directives and service bulletins applicable to different models and serial numbers of Twin Commander aircraft.
- Includes a cross-reference list of airworthiness directives and service bulletins.
- Applicable to various Twin Commander models including 690A.
- Covers issues such as fuel line modifications and landing gear inspections.
- Lists specific serial numbers for each service bulletin.
- Addresses safety and maintenance requirements for aircraft.
- Provides contact information for Twin Commander Aircraft LLC.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Reference only, not for flight. Use the current approved manual for your aircraft. See terms, section 5.
Document
Source
Copy found at svdcdn.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Service Bulletins
- File size ·
- 625 KB
- Copy found at ·
- svdcdn.com
- Language ·
- en
Common. More common than 86% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Twin Commander 690A.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
Twin Commander 690A for sale now
Free — save the 690 to your watchlist and track it in one place.
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In this document
Airworthiness Directives
Lists specific airworthiness directives and their applicability to various Twin Commander models.
Service Bulletins
Details service bulletins related to maintenance and safety for Twin Commander aircraft.
Applicability
Specifies the serial numbers for each service bulletin and airworthiness directive.
Contact Information
Provides contact details for Twin Commander Aircraft LLC, including phone number and website.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Full document text
SERVICE BULLETIN / AIRWORTHINESS DIRECTIVE CROSS REFERENCE LIST Airworthiness Directives Service Bulletins AD Subject Applicability 56-02-01 SB 31 Loss of Augmenter Tube in Flight 560-A 57-09-01 SB 41 Aileron Bellcrak Casting 520, 560, 560-A, 680 57-15-01 SB 43 Landing Gear Retaining Pins 560-A, 560-E, 680 58-01-01 SB 45 Fuel Vent Line Replacement 520, 560, 560-A, 560-E, 680 59-04-01 SB 50 Stabilizer Rivets 500, 560, 560-A, 560-E, 680, 680-E, 720 59-06-01 SB 57 Elevator Front Spar 500, Serial Numbers 618 Through 724 Except 700 and 718. 59-16-01 SB 54 Fuel Line Routing 500, 520, 560, 560A, 560E, 680, 680E, 720 Aircraft, Serial Numbers 231 Through 690. 60-20-01 SB 62 Wing Rivet Replacement Models 680-E and 720, Serial Numbers 501, 623 Through 873 Except 820, 850, 860, 867 and 872. 61-14-01 SB 68A Engine Mount Inspection (Superceeds AD 60- 26-01) All Model 500 series Aircraft. 62-05-01 SB 76A Alternate Induction Air Valve 680-F, 680-FL, 680-FL(P), 680-F(P) 62-08-01 SB 78 Fuel Pressure Gauge Drain Line 680-F, 720 62-08-02 SB 77, SB 79 Fuel Line Modification Models 520 and 560 Aircraft With Serial Numbers 1 Through 230. 63-08-01 SL 97 Fuel Gaging System 520 Serial Numbers 1 Through 130 With the Fuel Gaging System Having the Dual Needle Quantity Indicator Installed. 64-02-01 SB 83 Main Landing Gear Models 500A, 500B, 560F, 680F (Pressurized) and 680FL Aircraft Serial Numbers 871, 875, and 893 through 1329 Except Serial Numbers 916, 953, 1162, 1186, 1207, 1224, 1234, 1293, 1303, 1325, 1327, and 1328. 67-22-01 SB 83A Main Landing Gear Applies to Models 500A, 500B, 560F, 680F, 680F (Pressurized), 680 FL, and 680 FL(P) Airplanes, Serial Numbers 871, 875, and 893 through 1535 except 1496, 1515, 1517, 1519, 1527, 1531, and 1532, and 1534. 67-28-01 SB 92 Lower Front Spar Cap Applies to Models 560E, 680, 680E, and 720 Airplanes. 73-06-02 CK 87A Fuel Siphoning Applies to all Models 500, 500A, 500B, 500U, 520, 560, 560A, 560E, 560F, 680, 680E, 680F, 680F(P), 680FL, 680FL(P) and 720 series airplanes certificated in all categories. 04/16/2026 Page 1 of 6 TWIN COMMANDER AIRCRAFT LLC, 1176 Telecom Drive, Creedmoor, NC 27522 Telephone: 919-956-4300, Info@TwinCommander.com, www.twincommander.com SERVICE BULLETIN / AIRWORTHINESS DIRECTIVE CROSS REFERENCE LIST Airworthiness Directives Service Bulletins AD Subject Applicability 73-13-09 SB 123 Oil Supply Line Failure Applies to Model 690 airplanes, Serial Numbers 11001 through 11063. 74-20-12 SB 143 Pilot and Co-pilot Side Window Applies to Rockwell Model 690A series airplanes, S/N 11100 through 11197. 75-08-05 SB 149 Battery Disconnect Applies to Model 690A airplanes, Serial Numbers 11100 through 11196, 11198 through 11215, 11219 through 11227, and 11231 through 11233. 75-08-07 SB 147 Bleed Air Line Applies to Model 690A airplanes, Serial Numbers 11100 through 11208. 75-12-09-R2 SB 128, SB 129, SB 136, SB 152, SB 179 Inadvertent Structural Failure Applies to Models 500, 500A, 500B, 500S, 500U, 520, 560, 560A, 560E, 560F, 680, 680E, 680F, 680F(P), and 720, through Serial Number 3323 airplanes certificated in all categories. 75-19-01 SB 156/SB 157 Flap Speed (Superceeds AD 75-15-01) Applies to Models 690, S/N 11000 and subsequent, 690A, S/N 11100 and subsequent, and 685, S/N 12000 and subsequent. 77-03-01 SB 163 Left and Right Wing Rivets Applies to Models 690, 690A, and 690B, S/N's 11000 through 11371. 77-04-01 SB 162 Trim System Applies to Model 690A airplanes, Serial Numbers 11143 through 11344, equipped with a Rockwell International installed Collins Radio Company AP106 autopilot. This AD does not apply to installations made in accordance with STC SA1876SW. 82-23-05 SB 192 Induction Air Elbow Applies to Model 685 (S/Ns 12000 through 12043, and 12045 through 12066) airplanes certificated in any category. 84-10-07 SB 102A Emergency LG Extension System Modification Applies to Models 680T, 680V, and 680W (S/N's 1473 through 1850) and Model 681 (S/N's 6001 through 6017, 6020 through 6038, 6040 through 6042, and 6048) airplanes certificated in any category unless Service Bulletin 102 dated March 1, 1971, or Service Bulletin 102A dated September 1, 1983, has previously been accomplished. 04/16/2026 Page 2 of 6 TWIN COMMANDER AIRCRAFT LLC, 1176 Telecom Drive, Creedmoor, NC 27522 Telephone: 919-956-4300, Info@TwinCommander.com, www.twincommander.com SERVICE BULLETIN / AIRWORTHINESS DIRECTIVE CROSS REFERENCE LIST Airworthiness Directives Service Bulletins AD Subject Applicability 84-19-05 SB 201 Engine Mount Systems Applies to Models 690 and 690A, (S/Ns 11001 through 11284 which have had engine isolator assemblies replaced after July 28, 1975); 690A (S/Ns 11285 through 11344); 690B (S/Ns 11350 through 11566); 690C (S/Ns 11600 through 11732); 690D (S/Ns 15001 through 15033 and 15037); 695 (S/Ns 95000 through 95084); 695A (S/Ns 96001 through 96061, 96063 through 96072, 96075, 96078, 96085, and 96088) airplanes certificated in any category. 87-21-07-R1 SI 209A Fuel Filler Openings Applies to Models 500, 500A, 500B, 500U, 520, 560, 560A, 560E, 560F, 680, 680E, 680F, 680F(P), 680FL(P), and 720 Serial Numbers (S/N 1 through 1854); and Models 500S (S/N 1755 through 3323), 680FL (S/N 1261 through 1853), 685 (S/N 12001 through 12066), and 700 (S/N 70001 through 70032) airplanes equipped with reciprocating engines, certificated in any category. 94-04-11 SB 215 Spar Cap Applies to Models 500S SNs 3314 - 3323, 690B SNs 11480 - 11566. 94-04-12 SB 211 Rev 1 Wing Structure Applies to Models 685 SNs 12000 - 12066, 690, 690A & 690B SNs 11001 - 11566. 94-04-13 SB 90C Rev 1 CK 145 Spar Cap (Superceeds AD 65-06-01) Applies to Models 500, 600, and 700 Series Airplanes. 94-04-14 SB 208A Spar Cap (Superceeds AD 91-08-09) Twin Commander Aircraft Corporation 500, 680, 681, 685, and 690 Series Airplanes. 94-04-15 SB 212 Spar Cap Twin Commander Aircraft Corporation Models 500, 560A, 560E,
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680, 680E, and 720 Airplanes. 95-12-23 SB 213 Wing Structure Twin Commander Aircraft Corporation Models 690C and 695 Airplanes. 95-13-02 SB 218 Rev 2 Vertical Stab Inspection Twin Commander Aircraft Corporation Models 685, 690, 690A, 690B, 690C, 690D, 695, 695A Airplanes. 04/16/2026 Page 3 of 6 TWIN COMMANDER AIRCRAFT LLC, 1176 Telecom Drive, Creedmoor, NC 27522 Telephone: 919-956-4300, Info@TwinCommander.com, www.twincommander.com SERVICE BULLETIN / AIRWORTHINESS DIRECTIVE CROSS REFERENCE LIST Airworthiness Directives Service Bulletins AD Subject Applicability 95-19-18 SB 220 Turbulent Air Penetration and Maneuvering Speeds Twin Commander Aircraft Corporation Models 680T and 680V, 680W, 681, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B Airplanes. 98-07-17 SB 226 Rev 1 Flap System (Supersedes AD 94-04-17 and SB 210) Twin Commander Aircraft Corporation 500, 520, 560, 680, 681, 685, 690, 695, and 720 Series Airplanes. 98-08-19 SB 223 Rev 2 Wing to Fuselage Attachment Brackets and Straps Twin Commander Aircraft Corporation 500, 600, and 700 Series Airplanes. 98-08-25-R1 SB 224 Rev C Nose Landing Gear (NLG) Drag Link Bolt (Superseded AD 96-12-08) Twin Commander Aircraft Corporation 500, 680, 690, and 695 Series Airplanes. 2003-07-03 SB 214 Rev 2 Wing and Fuselage Structure Twin Commander Models: 690D, 695A, 695B 2006-15-01 SB 236A & SB 238 Inboard and Center Aileron Hinge Fittings Twin Commander Models: 690, 690A, 690B 2009-25-02 SB 182/SB 237 Upper Wing Skins Twin Commander Models: 690, 690A, 690B 2013-09-05 SB 241 Fuselage Twin Commander Models: 690, 690A, 690B 87-24-07 R1 AFM/POH Update SI 211, SI 212. CK 138 or CK 139 POH/AFM Revision - Icing Applies to Models 690, 690A, 690B, 690C, 690D, 695, 695A, and 695B (all serial numbers) airplanes certificated in any category. 98-20-34 POH/AFM Update Airplane Flight Manuals-Severe Icing Conditions Applies to Models 500, 500-A, 500-B, 500-S, 500-U, 520, 560, 560-A, 560-E, 560-F, 680, 680-E, 680FL(P), 680T, 680V, 680W, 681, 685, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B, and 720 Airplanes. 2000-02-30 AFM Update Airframe Pneumatic Deicing Boots Applies to Models: 680, 680-E, 680-F, 680-FL, 680-FL(P), 680-T, 680-V, 680- W, 681, 685, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B. 2023-09-09 N/A Exhaust Turbine System (Recip) (Turbocharged aircraft only) Establishes a life limit for the spot-welded, multi-segment exhaust tailpipe v- band coupling (500, 500A, 500B, 500S, 500U, 560A, 560E, and 685.) 04/16/2026 Page 4 of 6 TWIN COMMANDER AIRCRAFT LLC, 1176 Telecom Drive, Creedmoor, NC 27522 Telephone: 919-956-4300, Info@TwinCommander.com, www.twincommander.com SERVICE BULLETIN / AIRWORTHINESS DIRECTIVE CROSS REFERENCE LIST Airworthiness Directives Service Bulletins AD Subject Applicability 67-26-04 see AD/ No Twin Commander SB Noted Weston-Garwin Carruth Model 22-374 Series Altimeter WESTON GARWIN CARRUTH: Applies to Aircraft Equipped with Model 22-374 Series Altimeters. 500-B, 500-U, 680-FL, 680-FL(P), 680T. 75-12-10 see AD/ No Twin Commander SB Noted Autopilots All Aicraft with Autopilot PN Collins AP106 (Collins SB 6). 78-05-06 see AD/ No Twin Commander SB Noted Flexible Fuel Cells Applies to Goodyear flexible fuel cells, construction type BTC-39 series manufactured between 1961 and 1971 (All models prefixed by 500, 560, 680, 681, 685, 690 and 720). 79-07-02 see AD/ No Twin Commander SB Noted Batteries EXIDE AC 78M and WILLARD W 78M BATTERIES. Applies to those batteries manufactured during December 1978, January and February 1979, identified by the figures N-8, A-9, or B-9 stamped on either terminal post. 81-19-04 see AD/ No Twin Commander SB Noted Hose Assembly Applies to all affected aircraft, certificated in all categories modified per Rajay Supplemental Type Certificates. (Aerocommander 500-A STC SA683WE, & Aerocommander 500-B, 500-S & 500-U STC SA529WE). 96-12-22 see AD/ No Twin Commander SB Noted Full Flow Engine Oil Adapter Twin Commander Models: 500-A, 685 98-14-03 see AD/ No Twin Commander SB Noted Transponders KT 76A Air Traffic Control (ATC) transponders; part number (P/N) 066-1062-00/10/02; serial numbers 93,000 through 109,999 (Twin Commander Aircraft Company: 500, 520, 560, 680, 681, 685, 690, 695, and 720 series airplanes). 04/16/2026 Page 5 of 6 TWIN COMMANDER AIRCRAFT LLC, 1176 Telecom Drive, Creedmoor, NC 27522 Telephone: 919-956-4300, Info@TwinCommander.com, www.twincommander.com SERVICE BULLETIN / AIRWORTHINESS DIRECTIVE CROSS REFERENCE LIST Airworthiness Directives Service Bulletins AD Subject Applicability 2005-01-19 see AD/ No Twin Commander SB Noted Mode S transponders GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX330D Mode S Transponders 500, 500–A, 500–B, 500–U, 500–S, 520, 560, 560–A, 560–E, 560F, 680, 680E,680F, 680FL, 680FL(P), 680T, 680V, 680W, 681, 685, 690, 690A, 690B, 690C,690D, 695, 695A, 695B, 720, 700. 2005-18-20 see AD/ No Twin Commander SB Noted "FASTprop" propeller de-icers Goodrich De-icing and Specialty Systems ''FASTprop'' Propeller De-icers 500, 500-A, 500-B, 500-S, 500-U, 560-A, 560-E, 560-F, 680, 680-E, 680-F, 680-F(P), 680-FL, 680-FL(P), 680-T, 680-V, 680-W, 681,685, 690, 690A, 690B, 690C, 695, 720. 2006-16-18 R1 see AD/ No Twin Commander SB Noted Installing a warning placard on the TAWS/RMI Sandel Avionics Incorporated (Sandel) Model ST3400 (TAWS/RMI) 2022-03-15 see AD/ No Twin Commander SB Noted Fuel Quantity Indicator Garmin G3X Touch Electronic Flight Instrument System installed per Supplemental Type Certificate (STC) No. SA01899WI or Garmin GI 275 Multi-Function Display (MFD) installed per STC No. SA02658SE. 2023-10-02 see AD/ No Twin Commander SB Noted 5G C-Band Interference (Superceeds AD 2021-23-12) All Models. 04/16/2026 Page 6 of 6 TWIN COMMANDER AIRCRAFT LLC, 1176 Telecom Drive, Creedmoor, NC 27522 Telephone: 919-956-4300, Info@TwinCommander.com, www.twincommander.com