# Monocoupe 90A

- Type: Aircraft model (FAA registry)
- Registry code: 5810104
- Manufacturer (registry): MONOCOUPE
- Model: 90A
- Aircraft type: Fixed wing single engine
- Category: Airplane
- Engines: 1 · Reciprocating
- Seats: 2
- Weight class: Up to 12,499 lb
- Cruise speed: 75 mph
- Certification: Type certificated
- Data sheet: [TCDS A-306](https://openairdocs.org/tcds/A-306) (OpenAirDocs)
- Holder: Monocoupe Corporation
- Registered aircraft: 41
- Page: https://openairdocs.org/model/monocoupe-90a

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.

None matched.

## Registered aircraft (41)

- [N11735](https://openairdocs.org/aircraft/N11735): [Dilse Ted D](https://openairdocs.org/faa-owner/DILSE%20TED%20D), [Scranton, ND](https://openairdocs.org/faa-place/ND/Scranton), built 1934, S/N A-662
- [N11737](https://openairdocs.org/aircraft/N11737): [Hebert Leonard W](https://openairdocs.org/faa-owner/HEBERT%20LEONARD%20W), [Logan, UT](https://openairdocs.org/faa-place/UT/Logan), S/N A664
- [N11747](https://openairdocs.org/aircraft/N11747): [Lamb David W](https://openairdocs.org/faa-owner/LAMB%20DAVID%20W), [Ellerbe, NC](https://openairdocs.org/faa-place/NC/Ellerbe), built 1934, S/N 676
- [N11750](https://openairdocs.org/aircraft/N11750): [Golden Age Air Museum](https://openairdocs.org/faa-owner/GOLDEN%20AGE%20AIR%20MUSEUM), [Bethel, PA](https://openairdocs.org/faa-place/PA/Bethel), built 1934, S/N A-679
- [N11751](https://openairdocs.org/aircraft/N11751): [Cox Donald E Jr](https://openairdocs.org/faa-owner/COX%20DONALD%20E%20JR), [Fayetteville, GA](https://openairdocs.org/faa-place/GA/Fayetteville), built 1934, S/N A-680
- [N11754](https://openairdocs.org/aircraft/N11754): [Colton F D](https://openairdocs.org/faa-owner/COLTON%20F%20D), [Canby, OR](https://openairdocs.org/faa-place/OR/Canby), built 1934, S/N A-685
- [N11760](https://openairdocs.org/aircraft/N11760): [Davis Richard M](https://openairdocs.org/faa-owner/DAVIS%20RICHARD%20M), [League City, TX](https://openairdocs.org/faa-place/TX/League%20City), built 1934, S/N A-689
- [N11761](https://openairdocs.org/aircraft/N11761): [Essey Helen P](https://openairdocs.org/faa-owner/ESSEY%20HELEN%20P), [Laurinburg, NC](https://openairdocs.org/faa-place/NC/Laurinburg), S/N A-690
- [N11767](https://openairdocs.org/aircraft/N11767): [Art Ticulate Tees LLC](https://openairdocs.org/faa-owner/ART%20TICULATE%20TEES%20LLC), [Hazard, KY](https://openairdocs.org/faa-place/KY/Hazard), built 1935, S/N A696
- [N11768](https://openairdocs.org/aircraft/N11768): [White Paul M](https://openairdocs.org/faa-owner/WHITE%20PAUL%20M), [Elizaville, NY](https://openairdocs.org/faa-place/NY/Elizaville), built 1935, S/N A697
- [N11776](https://openairdocs.org/aircraft/N11776): [Robinson Stephen G](https://openairdocs.org/faa-owner/ROBINSON%20STEPHEN%20G), [Livermore, CA](https://openairdocs.org/faa-place/CA/Livermore), built 1935, S/N A-705
- [N11777](https://openairdocs.org/aircraft/N11777): [Lerille Red](https://openairdocs.org/faa-owner/LERILLE%20RED), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), built 1935, S/N A706
- [N11782](https://openairdocs.org/aircraft/N11782): [Iler Elden](https://openairdocs.org/faa-owner/ILER%20ELDEN), [Van Nuys, CA](https://openairdocs.org/faa-place/CA/Van%20Nuys), S/N A707
- [N11783](https://openairdocs.org/aircraft/N11783): [Goudeau Todd J](https://openairdocs.org/faa-owner/GOUDEAU%20TODD%20J), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 1935, S/N A708
- [N11787](https://openairdocs.org/aircraft/N11787): [Mosinee, WI](https://openairdocs.org/faa-place/WI/Mosinee), built 1935, S/N A-712, Sale reported
- [N11793](https://openairdocs.org/aircraft/N11793): [Reed Gary L](https://openairdocs.org/faa-owner/REED%20GARY%20L), [Bethel, OH](https://openairdocs.org/faa-place/OH/Bethel), built 1936, S/N A717
- [N11795](https://openairdocs.org/aircraft/N11795): [Gallarate Raymond D](https://openairdocs.org/faa-owner/GALLARATE%20RAYMOND%20D), [Sonoma, CA](https://openairdocs.org/faa-place/CA/Sonoma), built 1937, S/N A-719
- [N11797](https://openairdocs.org/aircraft/N11797): [Lerille Red](https://openairdocs.org/faa-owner/LERILLE%20RED), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), built 1937, S/N A-721
- [N15427](https://openairdocs.org/aircraft/N15427): [Lightsey Mark A](https://openairdocs.org/faa-owner/LIGHTSEY%20MARK%20A), [Pleasant View, TN](https://openairdocs.org/faa-place/TN/Pleasant%20View), built 1930, S/N A-727
- [N15429](https://openairdocs.org/aircraft/N15429): [Niemyjski Justin S](https://openairdocs.org/faa-owner/NIEMYJSKI%20JUSTIN%20S), [Franksville, WI](https://openairdocs.org/faa-place/WI/Franksville), built 1936, S/N A730
- [N15437](https://openairdocs.org/aircraft/N15437): [Kegin Kevin Michael](https://openairdocs.org/faa-owner/KEGIN%20KEVIN%20MICHAEL), [Salem, IL](https://openairdocs.org/faa-place/IL/Salem), built 1936, S/N A736
- [N15440](https://openairdocs.org/aircraft/N15440): [Caldwell Collection Inc](https://openairdocs.org/faa-owner/CALDWELL%20COLLECTION%20INC), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 1936, S/N A739
- [N16423](https://openairdocs.org/aircraft/N16423): [Niemyjski Trevor G](https://openairdocs.org/faa-owner/NIEMYJSKI%20TREVOR%20G), [Union Grove, WI](https://openairdocs.org/faa-place/WI/Union%20Grove), S/N A-750
- [N16426](https://openairdocs.org/aircraft/N16426): [Crestair Air LLC](https://openairdocs.org/faa-owner/CRESTAIR%20AIR%20LLC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 1937, S/N A753
- [N16427](https://openairdocs.org/aircraft/N16427): [Lerille Red](https://openairdocs.org/faa-owner/LERILLE%20RED), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), built 1937, S/N A-754
- [N18056](https://openairdocs.org/aircraft/N18056): [Bowe Andrew J Jr](https://openairdocs.org/faa-owner/BOWE%20ANDREW%20J%20JR), [Poplar Grove, IL](https://openairdocs.org/faa-place/IL/Poplar%20Grove), built 1937, S/N A-765
- [N18062](https://openairdocs.org/aircraft/N18062): [Slack Jonathan D](https://openairdocs.org/faa-owner/SLACK%20JONATHAN%20D), [Bonfield, IL](https://openairdocs.org/faa-place/IL/Bonfield), built 1938, S/N A-770
- [N18166](https://openairdocs.org/aircraft/N18166): [Western Antique Aeroplane & Automobile Museum](https://openairdocs.org/faa-owner/WESTERN%20ANTIQUE%20AEROPLANE%20%26%20AUTOMOBILE%20MUSEUM), [Hood River, OR](https://openairdocs.org/faa-place/OR/Hood%20River), built 1940, S/N 791
- [N18168](https://openairdocs.org/aircraft/N18168): [White Paul M](https://openairdocs.org/faa-owner/WHITE%20PAUL%20M), [Elizaville, NY](https://openairdocs.org/faa-place/NY/Elizaville), S/N A793
- [N18176](https://openairdocs.org/aircraft/N18176): [Reese Flying Service Inc](https://openairdocs.org/faa-owner/REESE%20FLYING%20SERVICE%20INC), [Muncie, IN](https://openairdocs.org/faa-place/IN/Muncie), built 1941, S/N A-802
- [N18184](https://openairdocs.org/aircraft/N18184): [Lerille Red](https://openairdocs.org/faa-owner/LERILLE%20RED), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), built 1941, S/N A-810
- [N18186](https://openairdocs.org/aircraft/N18186): [Davies Samuel R](https://openairdocs.org/faa-owner/DAVIES%20SAMUEL%20R), [Port Angeles, WA](https://openairdocs.org/faa-place/WA/Port%20Angeles), S/N A-812
- [N19423](https://openairdocs.org/aircraft/N19423): [Goettl Karl T](https://openairdocs.org/faa-owner/GOETTL%20KARL%20T), [Clarkdale, AZ](https://openairdocs.org/faa-place/AZ/Clarkdale), built 1938, S/N A-775
- [N19424](https://openairdocs.org/aircraft/N19424): [Cook Charles N](https://openairdocs.org/faa-owner/COOK%20CHARLES%20N), [Lakeside, TX](https://openairdocs.org/faa-place/TX/Lakeside), built 1938, S/N A-774
- [N19430](https://openairdocs.org/aircraft/N19430): [Bonzon Jeffrey L](https://openairdocs.org/faa-owner/BONZON%20JEFFREY%20L), [Largo, FL](https://openairdocs.org/faa-place/FL/Largo), S/N A-781
- [N19433](https://openairdocs.org/aircraft/N19433): [Schell Samuel E Jr](https://openairdocs.org/faa-owner/SCHELL%20SAMUEL%20E%20JR), [Littlestown, PA](https://openairdocs.org/faa-place/PA/Littlestown), built 1939, S/N A-783
- [N19434](https://openairdocs.org/aircraft/N19434): [Bill Mcgowan Inc](https://openairdocs.org/faa-owner/BILL%20MCGOWAN%20INC), [Covington, LA](https://openairdocs.org/faa-place/LA/Covington), built 1939, S/N A784
- [N19437](https://openairdocs.org/aircraft/N19437): [Lerille Red](https://openairdocs.org/faa-owner/LERILLE%20RED), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), S/N A-787
- [N2701C](https://openairdocs.org/aircraft/N2701C): [Cournoyer John J](https://openairdocs.org/faa-owner/COURNOYER%20JOHN%20J), [Ellsinore, MO](https://openairdocs.org/faa-place/MO/Ellsinore), S/N AF-826
- [N38917](https://openairdocs.org/aircraft/N38917): [Flying Low Racing LLC](https://openairdocs.org/faa-owner/FLYING%20LOW%20RACING%20LLC), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 1941, S/N A-840
- [N410Y](https://openairdocs.org/aircraft/N410Y): [Love Kenneth L](https://openairdocs.org/faa-owner/LOVE%20KENNETH%20L), [Ronda, NC](https://openairdocs.org/faa-place/NC/Ronda), built 1936, S/N A742

## 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 NYC07CA099](https://openairdocs.org/ntsb/NYC07CA099), Apr 19, 2007: Monocoupe 90A (N11798), Lakeland, FL, substantial damage. Probable cause: The pilot's improper flare and failure to maintain airspeed, which resulted in a stall and subsequent loss of control. A factor was the sun glare.
- [NTSB CHI00LA216](https://openairdocs.org/ntsb/CHI00LA216), Jul 25, 2000: Monocoupe 90A (N19429), Creve Coeur, MO, substantial damage. Probable cause: the excessive brakes applied by the second pilot. A factor to the accident was the unavailability of brakes on the flight instructor's side of the aircraft.
- [NTSB FTW99LA087](https://openairdocs.org/ntsb/FTW99LA087), Feb 28, 1999: Monocoupe 90A (N11760), Fort Worth, TX, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll, which resulted in an inadvertent ground loop/swerve. A factor was the crosswind.
- [NTSB LAX96LA056](https://openairdocs.org/ntsb/LAX96LA056), Nov 26, 1995: Monocoupe 90A (N11768), Salinas, CA, substantial damage. Probable cause: the pilot's failure to properly recover from a slipping maneuver.
- [NTSB CHI91LA285](https://openairdocs.org/ntsb/CHI91LA285), Sep 1, 1991: Monocoupe 90A (N11793), Creve Coeur, MO, substantial damage. Probable cause: A PREMATURE LIFTOFF AND IMPROPER REMEDIAL ACTION BY THE PILOT DURING A TAKEOFF GROUND RUN.
- [NTSB CHI79FET04](https://openairdocs.org/ntsb/CHI79FET04), Nov 4, 1978: Monocoupe 90A (N18062), Mentone, IN, destroyed, 2 fatal

## FAA accident and incident reports (12)

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 20180713011119I](https://openairdocs.org/incident/20180713011119I), Jul 13, 2018: Monocoupe 90A (N18184), Lafayette, LA, Minor damage. Aircraft landed rwy 22L and was on rollout about to turn onto an intersecting taxiway when the left main gear failed.
- [Incident 20151002019209I](https://openairdocs.org/incident/20151002019209I), Oct 2, 2015: Monocoupe 90A (N15429), Chino, CA, No damage. Upon landing and during the roll out/taxi phase, aircraft veered to the left and the left main tire exited the runway where it struck a runway light. The pilot…
- [Accident 20070419008619A](https://openairdocs.org/incident/20070419008619A), Apr 19, 2007: Mncoup 90A (N11798), Lakeland, FL, Substantial damage. (-23) On Thursday, 19 April 2007 at approximately 1929 EDT, a monocoupe 90-A piloted by [privacy data omitted], experienced a hard landing alongside the runway…
- [Incident 20030901021909I](https://openairdocs.org/incident/20030901021909I), Sep 1, 2003: Mncoup 90A (N18056), Caldwell, ID, Minor damage. (-23) The pilot reported, on landing the aircraft headed to the right during rollout and ground looped. She had applied full left rudder and brakes, but the…
- [Accident 20000725006319A](https://openairdocs.org/incident/20000725006319A), Jul 25, 2000: Mncoup 90A (N19429), St Louis, MO, No damage. (-23) Mr. Miller was receiving an initial checkout in the nonocoupe from Mr. Mccollum. Mr. Mccollum was demonstrating a landing when the aircraft gegan to…
- [Accident 19990228011389A](https://openairdocs.org/incident/19990228011389A), Feb 28, 1999: Mncoup 90A (N11760), Fort Worth, TX, Substantial damage. On February 28, 1999, at 1123,central standard time, a manocoupe 90A airplane, NC11760, was substantially damaged when the left main landing gear collapsed…
- [Accident 19951126038419A](https://openairdocs.org/incident/19951126038419A), Nov 26, 1995: Mncoup 90A (N11768), Salinas, CA, Substantial damage. Stalled trying to slip on final due being too high. Blamed controls. No defects found.
- [Incident 19921004047379I](https://openairdocs.org/incident/19921004047379I), Oct 4, 1992: Mncoup 90A (N11762), Mattoon Charles, IL, Minor damage. During the landing rollout, pilot ground looped the aircraft.
- [Accident 19910901037329A](https://openairdocs.org/incident/19910901037329A), Sep 1, 1991: Mncoup 90A (N11793), St Louis, MO, Substantial damage. Lifted off prematurely,lost control and dragged a wing on runway trying to reinitiate climb. Impact tore off engine
- [Incident 19860706043939I](https://openairdocs.org/incident/19860706043939I), Jul 6, 1986: Mncoup STC90MNCOUP (N11793), Palmyra, MO. Engine ran rough and landing was made in a field. Right rear cylinder pulled loose from the crankcase.
- [Incident 19830208009499I](https://openairdocs.org/incident/19830208009499I), Feb 8, 1983: Mncoup 90A (N18184), Lafayette, LA, Minor damage. Prop wash from a merlin caused the monocoupe to nose up as he crossed behind departing merlin per tower instruction
- [Accident 19781104042809A](https://openairdocs.org/incident/19781104042809A), Nov 4, 1978: Mncoup 90A (N18062), IN, Substantial damage, 1 fatal

## Service difficulty reports (1)

As reported by operators and repair stations, by the model named in the report.

- [SDR 96ZZZX56](https://openairdocs.org/sdr/96ZZZX56), Nov 1, 1995: SPAR. CRACKED. ON INSPECTION, MAIN SPAR FOUND WITH LATERAL CRACKS 18 INCHES IN LENGTH. WING OPENED FOR RECOVER. WING HAD HIT 'POLE' IN 1956 (?) WAS IN STORAGE.

## STCs that may be installed (OpenAirDocs) (18)

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 SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [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 SA02594SE](https://openairdocs.org/stc/SA02594SE): SkyView HDX Instrumentation and Autopilot System manufactured. Dynon Avionics
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc
- [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc
- [STC SA00410BO](https://openairdocs.org/stc/SA00410BO): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation
- [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc
- [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc
- [STC SA489EA](https://openairdocs.org/stc/SA489EA): Installation of ARP Inc. carburetor ice detection system. Aircraft & Rotorcraft Products (ARP) Inc
- [STC SA2-952](https://openairdocs.org/stc/SA2-952): Installation of fiberglass covering. Razorback Fabrics Inc. Lists 90 Series
- [STC SA5159NM](https://openairdocs.org/stc/SA5159NM): Installation of chip detector system. Northwest Aircraft Inc. Lists 90 Series
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA1617NM](https://openairdocs.org/stc/SA1617NM): Installation of a Lycoming engine, sensenich propeller, engine mount, Monocoupue cowling, two six gallon auxilliary wing tanks, modified frieze style ailerons, wing flap removal. Max R. Curry
- [STC SA387NW](https://openairdocs.org/stc/SA387NW): Installation of a Warner Super Scarab series 50A engine and engine mount; fiber glass cowling; 3 inch longer landing gear; a model 90 wing; and a Universal (Koppers) 220/0-85 propeller. Ludke, Frederick E. II
- [STC SA4-1024](https://openairdocs.org/stc/SA4-1024): Ceconite 101 covering of complete airplane. Cooper Engineering Corporation. Lists 90 Series
- [STC SA001410BO](https://openairdocs.org/stc/SA001410BO) (historical): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Arbc Inc DBA Lindstrand 90A](https://openairdocs.org/model/arbc-inc-dba-lindstrand-90a): 145 registered aircraft, registry code 5190006
- [Lindstrand Balloons 90A](https://openairdocs.org/model/lindstrand-balloons-90a): 79 registered aircraft, registry code 5180005
- [Lindstrand Balloons 90A](https://openairdocs.org/model/lindstrand-balloons-90a): 2 registered aircraft, registry code 5180019

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