# Champion 11AC - Type: Aircraft model (FAA registry) - Registry code: 21101P4 - Manufacturer (registry): CHAMPION - Model: 11AC - Aircraft type: Fixed wing single engine - Category: Airplane - Engines: 1 · Reciprocating - Seats: 2 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS A-761](https://openairdocs.org/tcds/A-761) (OpenAirDocs) - Holder: American Champion Aircraft Corp. - Registered aircraft: 0 - Page: https://openairdocs.org/model/champion-11ac Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2000-25-02 R1](https://openairdocs.org/ad/2000-25-02-R1): Wood Spars · American Champion 11AC, 11BC, 11CC and 27 more. Effective Jul 13, 2001 - [AD 47-20-01](https://openairdocs.org/ad/47-20-01): Gascolator Bowl Cleaning · American Champion 11AC, 7AC and 7BCM (Army L-16A). Effective Mar 18, 1980 - [AD 79-07-02](https://openairdocs.org/ad/79-07-02): Batteries · Aircraft Parts & Development A, A-2, A-3 and 149 more. Effective Apr 3, 1979 - [AD 52-28-01](https://openairdocs.org/ad/52-28-01): Fuel Transfer Placard · American Champion 11AC and S11AC - [AD 49-15-01](https://openairdocs.org/ad/49-15-01): Seat Anchorage Rework · American Champion 11AC, 11BC and S11AC - [AD 49-11-02](https://openairdocs.org/ad/49-11-02): Wing Attach Fitting · American Champion 11AC, 11BC, 11CC and 4 more - [AD 48-13-07](https://openairdocs.org/ad/48-13-07): Turnbuckle Fork Replacement · American Champion 11AC and S11AC - [AD 48-08-02](https://openairdocs.org/ad/48-08-02): Cleveland Wheels · American Champion 11AC, 11BC, 11CC and 33 more - [AD 48-04-02](https://openairdocs.org/ad/48-04-02): Wing Rib Rework · American Champion 11AC, 11BC and 7AC - [AD 47-30-05](https://openairdocs.org/ad/47-30-05): Exhaust Stack Inspection · American Champion 11AC and 7AC - [AD 47-30-01](https://openairdocs.org/ad/47-30-01): Lift Strut Wing Attach Fittings · American Champion 11AC and 7AC - [AD 47-20-02](https://openairdocs.org/ad/47-20-02): Oleo Piston · American Champion 11AC and 7AC Historical (superseded or no longer in force): - [AD 2000-25-02](https://openairdocs.org/ad/2000-25-02) (historical): Wood Wing Spars · American Champion 11AC, 11BC, 11CC and 15 more. Effective Jan 19, 2001 ## Information bulletins (advisory) (1) - [SAIB CE-07-45](https://openairdocs.org/saib/CE-07-45): Flight Controls. Issued Aug 24, 2007 ## Registered aircraft None registered with this model now. ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (10) As reported by operators and repair stations, by the model named in the report. - [SDR 2014FA0000326](https://openairdocs.org/sdr/2014FA0000326), May 16, 2014: ATTACH FITTING. FAILED. DURING LANDING ROLL-OUT, FOLLOWING A NORMAL TOUCHDOWN ON GRASS, THE RT LANDING GEAR FAILED, FOLDING AFT. ACFT SUSTAINED MINOR DAMAGE TO THE RT STRUT AND PROPELL - [SDR 2007FA0000417](https://openairdocs.org/sdr/2007FA0000417), May 11, 2007: SPAR. DELAMINATED. DELAMINATION OCCURRING AT LT FRONT WING SPAR / STRUT LOCATION. CRACK AT BOTTOM EDGE, AT WING ROOT FITTING. POSSIBLE AGE OF SPAR CAUSING DELAMINATION. LONGITUDIN - [SDR 2006FA0001097](https://openairdocs.org/sdr/2006FA0001097), Aug 15, 2006: SPRING. DAMAGED. TAIL WHEEL SPRING STRETCHED AT HOOK CPVSWG PILOT TO LOOSE RUDDER CONTROL PAD DEPART TAXIWAY. (K) - [SDR 2004FA0000562](https://openairdocs.org/sdr/2004FA0000562), Jul 13, 2004: SPAR. CRACKED. LT AFT WING SPAR HAD A VERTICAL COMPRESSION CRACK AT THE OB EDGE OF THE LIFT STRUT PLATE. ALSO, IT WAS CRACKED HORIZONTALLY FROM THE COMPRESSION CRACK TO THE OB - [SDR 2003FA0000777](https://openairdocs.org/sdr/2003FA0000777), Jul 31, 2003: TORQUE TUBE. SEPARATED. DURING ACCIDENT INVESTIGATION, FOUND BRACKET ATTACHED TO RUDDER PEDAL TORQUE TUBE FOR ATTACHMENT OF LT RUDDER CABLE SEPARATED FROM TORQUE TUBE. BRACKET APPEARED - [SDR CA020506005](https://openairdocs.org/sdr/CA020506005), Apr 4, 2002: SPAR. CRACKED. (CAN) UPON CLOSE VISUAL INSPECTION A CRACK WAS FOUND IN THE CENTRE OF THE BUTT OF THE RIGHT FRONT SPAR. THE CRACK RUNS AT LEAST AS FAR AS THE BUSHING AT THE WIN - [SDR 2002FA0000231](https://openairdocs.org/sdr/2002FA0000231), May 30, 2001: PLATE. DELAMINATED. FWD REINFORCING PLATE ON RIGHT REAR SPAR AT STRUT ATTACH FITTING WAS FOUND DELAMINATING AND SEPARATING FROM SPAR AT BOND AREA. PROBABLE CAUSE IS ATTACK BY MOIST - [SDR CA000801003](https://openairdocs.org/sdr/CA000801003), Jul 17, 2000: SPAR. CRACKED. (CAN) DURING INSPECTION OF WING FOLLOWING WIND DAMAGE, CRACK FOUND IN UPPER EDGE OF LEFT REAR SPAR, OUTBOARD OF STRUT ATTACH PLY PLATES. SPAR REPLACED. - [SDR 20000714SH034](https://openairdocs.org/sdr/20000714SH034), Jun 22, 2000: CLIP. SEPARATED. CONNECTOR CLIP PULLED OPEN ALLOWING STEERING SPRING TO COME LOOSE OF TAIL WHEEL STEERING HORN RESULTING IN A LOSS OF LEFT STEERING CONTROL. (X) - [SDR CA980302004](https://openairdocs.org/sdr/CA980302004), Feb 23, 1998: FASTENER. MISSING. (CAN) ON INSPECTION RIB TO SPAR NAILS MISSING. FABRIC REMOVED AND IT APPEARS THAT THE FRONT SPAR HAD BEEN REPLACED AND THE NAILS WERE NOT INSTALLED. ## STCs that may be installed (OpenAirDocs) (91, first 50) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA01233SE](https://openairdocs.org/stc/SA01233SE): Fabrication and installation of Alaskan Bushwheel LLC tail wheel and fork assembly. ABI, LLC - [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA00079NY](https://openairdocs.org/stc/SA00079NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation - [STC SA00081NY](https://openairdocs.org/stc/SA00081NY): Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. Alcor LLC - [STC SA7965SW](https://openairdocs.org/stc/SA7965SW): Application of fabric and polyurethane finishing system. Shady Aviation LLC - [STC SA345CE](https://openairdocs.org/stc/SA345CE): Remove right door. Install following placard in front of and in clear view of pilot. Stephen D. Woodin - [STC SA01240SE](https://openairdocs.org/stc/SA01240SE): Installation of secondary voltage indication system. Visual Instruments LLC - [STC SA03898NY](https://openairdocs.org/stc/SA03898NY): Installation and maintenance of ORATEX covering and coating material. Aircraft Design & Certification Ltd - [STC SA02576AK](https://openairdocs.org/stc/SA02576AK): Installation of Cleveland and ABI, LLC Wheel and Brake Kits. ABI LLC - [STC SA02987CH](https://openairdocs.org/stc/SA02987CH): Installation of the Electroair Electronic Ignition System. Electroair Acquisition Corporation - [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc - [STC SA01015SE](https://openairdocs.org/stc/SA01015SE): Installation of eligible Alaska Bushwheel, Inc. wheels and TSO-C62d tires. ABI LLC - [STC SA02553AK](https://openairdocs.org/stc/SA02553AK): Fabrication and installation of a Tail Wheel Anti-Shimmy Dampener. Keller Engineering Group LLC - [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation - [STC SA04301CH](https://openairdocs.org/stc/SA04301CH): Attachment of fabric covering and wing leading edge. C William Pancake Jr - [STC SA2710WE](https://openairdocs.org/stc/SA2710WE): Installation of carburetor heat box bearings. Del-Air - [STC SA02529AK](https://openairdocs.org/stc/SA02529AK): Installation of the GSD Landing Gear System, Aeronca/American Champion 7 & 11 series airplanes. Mr. Ernie Broten - [STC SA04032CH](https://openairdocs.org/stc/SA04032CH): Install rocker switch assemblies. Electroair Acquisition Corporation - [STC SA00344BO PAGE 1](https://openairdocs.org/stc/SA00344BO%20PAGE%201): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SA02503AK](https://openairdocs.org/stc/SA02503AK): Installation of AMSAFE State of the Art Restraint System (SOARS) inflatable restraints. AMSAFE Inc - [STC SA04202AT](https://openairdocs.org/stc/SA04202AT): Replacement of either a 65 horsepower Continental A65-8 or A65-8F engine with a 85 horsepower Continental C85-12F or a C85-12 which have provisions for an electrical starter. C William Pancake Jr - [STC SA02212AK](https://openairdocs.org/stc/SA02212AK): Replacement of existing landing and/or taxi light reflector and bulbs with high intensity discharge (HID) lighting systems. Seaplanes North LLC - [STC SA10077SC](https://openairdocs.org/stc/SA10077SC): Installation of push-button starter system. Hartzell Engine Technologies, LLC - [STC SA4773NM](https://openairdocs.org/stc/SA4773NM): Installation of replacement metal leading edge. MILMAN Engineering Inc - [STC SA02566CH](https://openairdocs.org/stc/SA02566CH): Installation of the Custom Fiberglass Molding, Inc. (CFMI) Model 1500, 2250-001, or 2250-002 Aircraft Main Landing Gear Skis. Silveraire LLC - [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc - [STC SA4305WE](https://openairdocs.org/stc/SA4305WE): Installation of GAR-AERO wheel adapters and tundra type tires on the main landing gear. Seaplanes North LLC - [STC SA02283SE PAGE 1](https://openairdocs.org/stc/SA02283SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc - [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc - [STC SA02428AK](https://openairdocs.org/stc/SA02428AK): Installation of a hydraulically actuated ski drag assembly. Northern Airframes LLC - [STC SA02295SE](https://openairdocs.org/stc/SA02295SE): Installation of an alternate method of fastening aluminum wing ribs to wood spars. Rainbow Flying Service LLC - [STC SA01765SE](https://openairdocs.org/stc/SA01765SE): Installation of Alaskan Bushwheel TSO-C26d wheels, Part Number (P/N) ABI-1010. ABI, LLC - [STC SA01026SE](https://openairdocs.org/stc/SA01026SE): Improved fuel gascolator assembly. Steve's Aircraft - [STC SA217AL](https://openairdocs.org/stc/SA217AL): Installation of Airglas Engineering Co. Inc. Model L-1650A or L-2000A skis. Airglas Inc - [STC SA535AL](https://openairdocs.org/stc/SA535AL): Fabrication and installation of Stoddard Aero Service wing auxiliary fuel tanks per Stoddard Aero Service Drawing List No. 89, dated February 7, 1975, or later Federal Aviation Administration approved revision. Cub Crafters Inc - [STC SA02370AK](https://openairdocs.org/stc/SA02370AK): Option (1) Installation of a replacement main tank fuel valve. Burl's Aircraft LLC - [STC SA02110CH](https://openairdocs.org/stc/SA02110CH): Installation of a Time Trac Data Recorder. P2 Incorporated - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [STC SA57RM](https://openairdocs.org/stc/SA57RM): Installation of Lycoming O-235-C1, -C1A, -C1B, -C1C, -C2A, -C2B, -C2C, -H2C, -K2A, -K2B, -L2A, or L2C series engines. Coleman T. Wagner - [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. Electronics International Inc - [STC SA593CH](https://openairdocs.org/stc/SA593CH): Install Champion SlickSTART magneto booster system. Champion Aerospace LLC - [STC SA3358NM](https://openairdocs.org/stc/SA3358NM): Production of aircraft wing ribs as specified in W. N. Kutner's 'Report #1 STC Request for Wing Ribs.'. Coleman T. Wagner - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc - [STC SA00823SE](https://openairdocs.org/stc/SA00823SE): Fabrication and Installation of Rainbow Flying Service front and rear wing spars and modified wing ribs. Rainbow Flying Service - [STC SA241CH](https://openairdocs.org/stc/SA241CH): Install Ceconite 101 fabric. Aviation Products Systems Inc - [STC SA73CH](https://openairdocs.org/stc/SA73CH): Installation of Wing Strut Fittings, P/N SAR 2-893 or SAR 2-893-1, and stiffeners, P/N 2-5009, in accordance with Safe Air Repair Installation Instructions SAR 2-5007, no revisions, dated April 30, 1993, or later FAA approved revisions. Aero Fabricators Co - [STC SA00232SE](https://openairdocs.org/stc/SA00232SE): Installation of vortex generators on the wings and tail surfaces. Micro AeroDynamics Inc - [STC SA01158WI](https://openairdocs.org/stc/SA01158WI): Installation of Aero Enhancements UV250-1 Supplemental Instrument Panel Lightning System. Aero Enhancements Inc All 91: https://openairdocs.org/model/champion-11ac/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Aeronca 11AC](https://openairdocs.org/model/aeronca-11ac): 603 registered aircraft, registry code 0191102 - [Aeronca/Miller/Delaney 11AC](https://openairdocs.org/model/aeronca-miller-delaney-11ac): 1 registered aircraft, registry code 0191105 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.