# Canadair CL-44D4 - Type: Aircraft model (FAA registry) - Registry code: 1900102 - Manufacturer (registry): CANADAIR LTD - Model: CL-44D4 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 4 · Turbo-prop - Seats: 181 - Weight class: 12,500 to 19,999 lb - Certification: Type certificated - Data sheet: [TCDS 1A20](https://openairdocs.org/tcds/1A20) (OpenAirDocs) - Holder: Bombardier Inc. - Registered aircraft: 0 - Page: https://openairdocs.org/model/canadair-cl-44d4 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 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026 - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2011-01-09](https://openairdocs.org/ad/2011-01-09): Oxygen · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 290 more. Effective Feb 9, 2011 - [AD 97-25-12](https://openairdocs.org/ad/97-25-12): AFM - Limitations Section - Power Levers · Bombardier CL-44D4 and CL-44J. Effective Jan 13, 1998 - [AD 91-06-05](https://openairdocs.org/ad/91-06-05): Supplemental Inspection Program · Bombardier CL-44D4 and CL-44J. Effective Apr 8, 1991 - [AD 89-04-07](https://openairdocs.org/ad/89-04-07): Upper Wing Skin · Bombardier CL-44D4 and CL-44J. Effective Mar 7, 1989 - [AD 68-01-06 R1](https://openairdocs.org/ad/68-01-06-R1): Main Landing Gear Bogie Beam · Bombardier CL-44D4. Effective Sep 5, 1988 - [AD 86-16-10](https://openairdocs.org/ad/86-16-10): Lugs - Main Landing Gear · Bombardier CL-44D4 and CL-44J. Effective Sep 8, 1986 - [AD 83-24-06](https://openairdocs.org/ad/83-24-06): L&R Upper MLG Eye Attachment Pins · Bombardier CL-44D4 and CL-44J. Effective Dec 20, 1983 - [AD 83-10-05](https://openairdocs.org/ad/83-10-05): Horizontal Stabilizer Rear Attachment Fittings · Bombardier CL-44D4 and CL-44J. Effective Jun 6, 1983 - [AD 81-07-05](https://openairdocs.org/ad/81-07-05): Nose Landing Gear Crossbeam · Bombardier CL-44D4 and CL-44J. Effective Mar 31, 1981 - [AD 71-20-06](https://openairdocs.org/ad/71-20-06): Horizontal Stabilizer · Bombardier CL-44D4 and CL-44J. Effective Feb 21, 1980 - [AD 79-10-12](https://openairdocs.org/ad/79-10-12): Main Landing Gear Actuating System · Bombardier CL-44D4 and CL-44J. Effective May 18, 1979 - [AD 79-10-04](https://openairdocs.org/ad/79-10-04): Fireproofing · Bombardier CL-44D4 and CL-44J. Effective May 9, 1979 - [AD 78-23-05](https://openairdocs.org/ad/78-23-05): Spline Wear On Elevator Travel · Bombardier CL-44D4 and CL-44J. Effective Nov 10, 1978 - [AD 76-15-05](https://openairdocs.org/ad/76-15-05): Nose Landing Gear Bolts · Bombardier CL-44D4 and CL-44J. Effective Apr 17, 1978 - [AD 77-17-01](https://openairdocs.org/ad/77-17-01): Structural Integrity · Bombardier CL-44D4 and CL-44J. Effective Aug 18, 1977 - [AD 77-02-10](https://openairdocs.org/ad/77-02-10): Fuselage Bonding Strips · Bombardier CL-44D4 and CL-44J. Effective Feb 4, 1977 - [AD 75-24-08](https://openairdocs.org/ad/75-24-08): Landing Gear Attach Bolts · Bombardier CL-44D4 and CL-44J. Effective Nov 25, 1975 - [AD 75-08-01](https://openairdocs.org/ad/75-08-01): Nose Landing Gear · Bombardier CL-44D4 and CL-44J. Effective Apr 7, 1975 - [AD 74-05-02](https://openairdocs.org/ad/74-05-02): Main Landing Gear Uplock Cylinder · Bombardier CL-44D4 and CL-44J. Effective Feb 26, 1974 - [AD 74-04-05](https://openairdocs.org/ad/74-04-05): Main Landing Gear Uplock Fitting · Bombardier CL-44D4 and CL-44J. Effective Feb 20, 1974 - [AD 74-04-04](https://openairdocs.org/ad/74-04-04): Main Landing Gear Attach Fitting · Bombardier CL-44D4 and CL-44J. Effective Feb 18, 1974 - [AD 72-21-05](https://openairdocs.org/ad/72-21-05): Horizontal Stabilizer · Bombardier CL-44D4 and CL-44J. Effective Oct 17, 1972 - [AD 69-12-05](https://openairdocs.org/ad/69-12-05): Cracks In Access Cutouts · Bombardier CL-44D4 and CL-44J. Effective Jun 27, 1969 - [AD 68-26-03](https://openairdocs.org/ad/68-26-03): Stabilizer Rib Cracks · Bombardier CL-44D4. Effective Dec 19, 1968 - [AD 68-10-08](https://openairdocs.org/ad/68-10-08): Main Landing Gear Actuator Attach · Bombardier CL-44D4 and CL-44J. Effective May 21, 1968 - [AD 67-19-03](https://openairdocs.org/ad/67-19-03): Front Spar Web · Bombardier CL-44D4. Effective Jun 10, 1967 - [AD 66-27-04](https://openairdocs.org/ad/66-27-04): Main Landing Gear Keel Members · Bombardier CL-44D4. Effective Nov 12, 1966 - [AD 65-04-03](https://openairdocs.org/ad/65-04-03): Elevator Antiflutter Gear Box Strut · Bombardier CL-44D4. Effective Feb 4, 1965 - [AD 64-02-04](https://openairdocs.org/ad/64-02-04): Control System Couplings · Bombardier CL-44D4. Effective Jan 23, 1964 - [AD 64-01-03](https://openairdocs.org/ad/64-01-03): Lubrication Of Sealed Couplings · Bombardier CL-44D4. Effective Jan 4, 1964 - [AD 63-18-01](https://openairdocs.org/ad/63-18-01): Elevator Hinge Bolts · Bombardier CL-44D4. Effective Sep 22, 1963 - [AD 63-03-02](https://openairdocs.org/ad/63-03-02): Rudder Balance Weight · Bombardier CL-44D4. Effective Feb 6, 1963 - [AD 62-21-01](https://openairdocs.org/ad/62-21-01): Oil Temperature Indicating System · Bombardier CL-44D4. Effective Oct 29, 1962 - [AD 62-08-06](https://openairdocs.org/ad/62-08-06): Engine Breather Duct Overheat Detectors · Bombardier CL-44D4. Effective Apr 11, 1962 - [AD 61-26-02](https://openairdocs.org/ad/61-26-02): Tail Heater Inspection · Bombardier CL-44D4. Effective Dec 21, 1961 - [AD 61-23-02](https://openairdocs.org/ad/61-23-02): Elevator Tab Tension Rods · Bombardier CL-44D4. Effective Nov 3, 1961 - [AD 61-22-03](https://openairdocs.org/ad/61-22-03): Elevator Hinge Fittings · Bombardier CL-44D4. Effective Nov 1, 1961 - [AD 61-22-02](https://openairdocs.org/ad/61-22-02): Landing Gear Rotation Lever · Bombardier CL-44D4. Effective Nov 1, 1961 - [AD 61-21-01](https://openairdocs.org/ad/61-21-01): Tail Pipe Door · Bombardier CL-44D4. Effective Oct 17, 1961 - [AD 62-09-02](https://openairdocs.org/ad/62-09-02): Oil Line Magnetic Plug And Filter · Bombardier CL-44D4 ## Registered aircraft None registered with this model now. ## NTSB investigations (6) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ATL89IA219](https://openairdocs.org/ntsb/ATL89IA219), Sep 26, 1989: Canadair CL-44 (N104BB), Greensboro, NC, incident, no damage. Probable cause: THE FIRST OFFICER'S FAILURE TO FOLLOW APPROVED MISSED APPROACH PROCEDURES, AND HIS ATTEMPT TO TAKE THE FLIGHT CONTROLS FROM THE CAPTAIN WHO WAS FLYING THE AIRPLANE. - [NTSB NYC84FA064](https://openairdocs.org/ntsb/NYC84FA064), Jan 2, 1984: Canadair CL44D4 (N104BB), East Boston, MA, substantial damage - [NTSB ANC69A0049](https://openairdocs.org/ntsb/ANC69A0049), May 1, 1969: Canadair CL44 (N446T), Anchorage, AK, destroyed - [NTSB DCA67R0001](https://openairdocs.org/ntsb/DCA67R0001), Dec 24, 1966: Canadair CL-44 (N228SW), Tourane, VM, destroyed, 4 fatal - [NTSB NYC66A0104](https://openairdocs.org/ntsb/NYC66A0104), Mar 21, 1966: Canadair CL-44D (N453T), Norfolk, VA, destroyed - [NTSB ANC65I0041](https://openairdocs.org/ntsb/ANC65I0041), Mar 6, 1965: Canadair CL-44D (N451T), Shemya, AK, incident, minor damage ## FAA accident and incident reports (4) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 19890926060329I](https://openairdocs.org/incident/19890926060329I), Sep 26, 1989: Cndair CL44D4 (N104BB), Greensboro, NC. Engine out on approach. Captain ordered go around. SIC attempted to land. Near a stall over terminal PIC got control - [Incident 19860410049889I](https://openairdocs.org/incident/19860410049889I), Apr 10, 1986: Cndair CL44D4 (N122AE), Manston, UK, Minor damage. Left wing came up on touchdown in a severe crosswind. Damaged a propeller and blew right main tires. Other damage. - [Incident 19860106002579I](https://openairdocs.org/incident/19860106002579I), Jan 6, 1986: Cndair CL44D4 (N100BB), Greensboro, NC, Minor damage. Nose gear could not be extended for landing. Landed with gear retracted. Found pin missing from centering cam. - [Accident 19840101001299A](https://openairdocs.org/incident/19840101001299A), Jan 1, 1984: Cndair CL44D4 (N104BB), East Boston, MA, Substantial damage. Hydraulic pressure line ruptured at the b nut. Leak emptied the resevoir. Landed with right main up. Ground looped. ## Service difficulty reports (1) As reported by operators and repair stations, by the model named in the report. - [SDR BUFA9515](https://openairdocs.org/sdr/BUFA9515), May 21, 1995: SELECTOR VALVE. INOP. FLT BVA777 - MQY-IAB - NOSE GEAR EXTENDS NORMALLY, BUT BOTH MAIN GEARS WOULD NOT EXTEND. EMERGENCY GEAR EXTENSION USED. NO EMERGENCY DECLARED. REMOVED AND REPLA ## STCs that may be installed (OpenAirDocs) (36) 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 SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc - [STC SA00081NY](https://openairdocs.org/stc/SA00081NY): Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. Alcor LLC - [STC SA01818WI](https://openairdocs.org/stc/SA01818WI): Installation of Garmin G5 Electronic Flight Instrument. Garmin International Inc - [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc - [STC SA1187WE](https://openairdocs.org/stc/SA1187WE): Either a Collins Radio Company or a United Data Control, Inc., cockpit voice recorder system. Flying Tiger Line Inc - [STC SA1236WE](https://openairdocs.org/stc/SA1236WE): Modification of elevators. Flying Tiger Line Inc - [STC SA1329WE](https://openairdocs.org/stc/SA1329WE): Collins 621A-3 air traffic control transponder system. Flying Tiger Line Inc - [STC SA1330WE](https://openairdocs.org/stc/SA1330WE): Class E cargo compartment reduced to accommodate crew rest area. Flying Tiger Line Inc - [STC SA1401WE](https://openairdocs.org/stc/SA1401WE): Structural modification of lower rudder. Flying Tiger Line Inc - [STC SA1639WE](https://openairdocs.org/stc/SA1639WE): Replacement of any of three original 40 KVA alternators with Westinghouse 40 KVA system consisting of alternator P/N 976J843-1 and regulator P/N 915F363-1. Flying Tiger Line Inc - [STC SA165WE](https://openairdocs.org/stc/SA165WE): 178 maximum passenger interior. Flying Tiger Line Inc - [STC SA1761WE](https://openairdocs.org/stc/SA1761WE): Replacement of any of three original 60 KVA alternators and voltage regulators with Westinghouse 60 KVA system. Flying Tiger Line Inc - [STC SA196EA](https://openairdocs.org/stc/SA196EA): Astek Mach airspeed warning switch. Flying Tiger Line Inc - [STC SA291WE](https://openairdocs.org/stc/SA291WE): Single Collins 860E-1 distance measuring equipment (DME) system. Flying Tiger Line Inc - [STC SA4-1556](https://openairdocs.org/stc/SA4-1556): Installation of United Control, Data Division, F542 Flight Recorder. Flying Tiger Line Inc - [STC SA4-1557](https://openairdocs.org/stc/SA4-1557): Passenger interior. Flying Tiger Line Inc - [STC SA457WE](https://openairdocs.org/stc/SA457WE): Passenger interior. Flying Tiger Line Inc - [STC SA489WE](https://openairdocs.org/stc/SA489WE): Dual Sperry C-12 compass system. Flying Tiger Line Inc - [STC SA518WE](https://openairdocs.org/stc/SA518WE): Dual Collins (DN-101) doppler radar and dual Collins (NC-103) navigational computer system with optional connection to Eclipse Pioneer PB-20H autopilot. Flying Tiger Line Inc - [STC SA535WE](https://openairdocs.org/stc/SA535WE): Passenger interior. Flying Tiger Line Inc - [STC SA569WE](https://openairdocs.org/stc/SA569WE): Modification for deletion of up restraint requirement in lower cargo compartments and the use of 5,000-lb. cargo fittings. Flying Tiger Line Inc - [STC SA576WE](https://openairdocs.org/stc/SA576WE): Extruded aluminum plank floor. Flying Tiger Line Inc - [STC SA577WE](https://openairdocs.org/stc/SA577WE): Aircraft Mechanics pilot and copilot seats. Flying Tiger Line Inc - [STC SA64EA](https://openairdocs.org/stc/SA64EA): Unfreight Mark IV cargo handling system. American Machine & Foundry Co - [STC SA721WE](https://openairdocs.org/stc/SA721WE): Modification of cockpit entrance door. Flying Tiger Line Inc - [STC SA777WE](https://openairdocs.org/stc/SA777WE): Custom Products models pilot and copilot seats. Flying Tiger Line Inc - [STC SA887WE](https://openairdocs.org/stc/SA887WE): 166-passenger interior. Flying Tiger Line Inc - [STC SA937WE](https://openairdocs.org/stc/SA937WE): Flap actuated gear warning system. Flying Tiger Line Inc - [STC SA378WE](https://openairdocs.org/stc/SA378WE): Installation of passenger interior. Flying Tiger Line Inc - [STC SA5656NM](https://openairdocs.org/stc/SA5656NM): Installation of burglar alarm system. Thompson Harold S - [STC SA1989SO](https://openairdocs.org/stc/SA1989SO): Installation of Canadair Marconi CMA-771 MK II Dual Omega Navigation System. Blue Bell Inc - [STC SA1105SO](https://openairdocs.org/stc/SA1105SO): Installation of Bendix ALA-51 radio altimeter and GPW-83 ground proximity warning system. Blue Bell Inc - [STC SA1086WE](https://openairdocs.org/stc/SA1086WE): Escape chutes relocated. Slick Airways - [STC SA215EA](https://openairdocs.org/stc/SA215EA): Airspeed aural warning system. Seaboard World Airlines Inc - [STC SA488EA](https://openairdocs.org/stc/SA488EA): Install Bendix brushless generators and regulators. Seaboard World Airlines Inc - [STC SA587EA](https://openairdocs.org/stc/SA587EA): Relocation of Fairchild Model5424-220 flight recorder. Seaboard World Airlines Inc --- 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.