Engine model · Reciprocating · 200 hp · registry code 41820

Manufacturer (registry)
LYCOMING
Model
IO-360-A1C
Registry code
41820
Installed in
0 registered aircraft
Type
Reciprocating
Power
200 hp
Data sheet
TCDS1E10
Holder
Lycoming Engines

Model codes come from the FAA registry’s reference file.

On this page

Airworthiness directives that may apply · 25

ADs whose products match this engine model. Each AD’s applicability may narrow it by serial number, part number or configuration.

1967In forceSuperseded2026
ADs by the year they took effect: 34 ADs
19671
19721
19732
19751
19772
19781
19791
19821
19911
19921
19951
19963
19971
19982
20032
20041
20061
20082
20091
20111
20123
20151
20221
20241
20261
See all 35 ADs
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code IN ('41820'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Information bulletins that may apply · 6

Historical bulletins · 1
Query with SQL
duckdb -csv -c "SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
  FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
  WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_saib.parquet' WHERE engine_model_code IN ('41820'))
  GROUP BY s.saib_number ORDER BY issue_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Registered aircraft · 0

No aircraft currently registered with this engine model

NTSB investigations

No NTSB investigations matched to aircraft with this engine modelMatched through the registry by N-number, so foreign aircraft and some older cases aren’t counted.

FAA incident reports

No reports matched to aircraft with this engine modelMatched through the registry by N-number, so foreign aircraft and some older reports aren’t counted.

Service difficulty reports · 11

SDR 2022FA0000039Actuator · usedPRIOR TO LANDING THE PILOT RECEIVED AN AUDIBLE GEAR WARNING HORN, BUT THE GEAR INDICATOR SHOWED A GREEN LIGHT. THE LANDING GEAR EXTENDED BUT FAILED TO LOCK DUE TO THE ELECTROMECHANICAL ACTUATOR CAUSING THE CIRCUIT BREAKER TO POP. THE PILOT COULD NOT GET THE Jan 21, 2022 · N4815H · Mooney M20J · Landing Gear ActuatorSDR 2014FA0000527Alternator · inoperativeON APPROACH, THE LOW VOLTAGE LIGHT ILLUMINATED. RESET OF THE ELECTRICAL SYS WAS UNSUCCESSFUL. ELECTRICAL LOAD WAS MINIMIZED WITH AN UNEVENTFUL LANDING. THE ELECTRICAL SYSTEM WAS TROUBLESHOT AND THE ALTERNATOR WAS FOUND AT FAULT, NOT CHARGING. ALTERNATOR WAAug 25, 2014 · N521JT · Cessna 172S · DC Generator-AlternatorSDR 2011FA0000677Throttle Cable · brokenDURING GROUND RUN THE PILOT REPORTED AN UNRESPONSIVE THROTTLE. THE ACFT WAS GROUNDED AND BROUGHT INTO THE SHOP FOR INSPECTION. THE THROTTLE CABLE WAS FOUND BROKEN, 4" UP THE CABLE FROM FUEL THROTTLE ATTACH ROD. RECOMMEND DISCONNECTING THE THROTTLE CABEL FROSep 27, 2011 · N5325U · Piper PA28R201 · Power LeverSDR 2009FA0001059Tube · cutTIRE WENT FLAT ON "PUSH BACK". TIRE WAS OK BUT CHANGED. TUBE LEAKIN ON SIDEWALL NEAR STEM. (K)Nov 5, 2009 · N36282 · Piper PA28R201 · Tire TubeSDR N3X2001F00000Bellcrank · looseBEARING HOUSING IS LOOSE IN BELLCRANK.Jul 12, 2001 · N443ER · Cessna 172R · Elevator Control SystemSDR 2001FA0000102Gyro · failedGYRO TUMBLED IN FLIGHT AND WOULD NOT RE-ERECT. MAINTENANCE TROUBLESHOOTING REVEALED NO DEFECTS WITH INSTRUMENT AIR SYSTEM. GYRO WAS REPLACED WITH A SERVICEABLE OVERHAULED UNIT. SYSTEM RETESTED AND REPLACEMENT GYRO FUNCTIONS NORMALLY. AIRCRAFT AND SYSTEM HJun 4, 2001 · N9453Z · Cessna 172R · Attitude Gyro and Indicating SystemSDR 20010322CW002Buss Tie · arcedPILOT REPORTED TRANSPONDER INOP, NR1 COMM/NAV INTERMIT. MAINT REPLCD NR1 COMM/NAV AND REMOVED TRANSPONDER FOR REPAIRS. NEXT FLIGHT, PILOT REPORTED NR2 COMM/NAV INTERMIT LOSS OF POWER & THE INTERCOMM INOP. MAINT TROUBLESHOOTING FOUND AUDIO PANEL COMM SELFeb 14, 2001 · N789EP · Cessna 172S · Electrical Power SystemSDR 20010228CW001Resistor · defectiveDURING PHASE 1 INSPECTION, RT FUEL QUANTITY READING WAS ERRATIC. THE SHAFT BEARING OR SEAL WAS FOUND TO BE DEFECTIVE ON THE RT SENDER. THIS APPARENTLY ALLOWED GASOLINE INTO THE SENDER.Feb 6, 2001 · N434ER · Cessna 172R · Fuel Indicating SystemSDR 2001FA0000408Tire · failedTIRE FAILURE, STRIPPED RIB. CAUSE: UNDETERMINED, PENDING EVALUATION BY MFG.Jan 19, 2001 · N316 · Amtr CHRISEAGLE2 · TireSDR 20010305CW015Servo · failedUNITS TRIM VOLTAGE LOW. CAUSE OF FAILURE UNKNOWN. ELEVATOR TRIMNov 13, 2000 · N350ME · Cessna 172S · Elevator Tab Control SystemSDR 20000523SH002Piston · failedENGINE PISTON ON NR 4 CYLINDER HEAD SEPARATED FROM BASE BELOW THE OIL RING LAND. TWISTED ROD AND CAUSED ENGINE TO FAIL. ENGINE FAILURE ON CLIMB-OUT AT ABOUT 700 FEET AGL AT CLIMB POWER. ENGINE TT SN, 1,445 HOURS. (X)Nov 21, 1999 · N5006L · Conaer LA4200 · Reciprocating Engine Power Section
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE engine_model_key = 'IO360A1C'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

STCs that may be installed · 39

Approved for this engine model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.

See all 39 STCs
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(matched_model) AS matched_model
    FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet'
    WHERE engine_model_code IN ('41820')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

PMA parts · 1,000+

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

See all 1,000+ PMA parts
Query with SQL
duckdb -csv -c "SELECT drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models
  FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet'
  WHERE tcds_number IN ('1E10')
    AND len(list_intersect(tcds_models, ['IO-360-A1C'])) > 0
  ORDER BY supplement_date DESC, drs_guid DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.