Engine model · Reciprocating · 180 hp · registry code 42305

Manufacturer (registry)
LYCOMING
Model
O-360-E1A6D
Registry code
42305
Type
Reciprocating
Power
180 hp
Data sheet
TCDSE-286
Holder
Lycoming Engines

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

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Airworthiness directives that may apply · 19

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

1963In forceSuperseded2026
ADs by the year they took effect: 22 ADs
19631
19671
19691
19771
19803
19881
19892
19911
19921
19971
19981
20021
20063
20122
20241
20261
See all 22 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 ('42305'))
  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 · 6
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 ('42305'))
  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 · 7

Query with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE engine_model_code IN ('42305')
  ORDER BY n_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.

NTSB investigations · 1

Aircraft matched to this engine model through the registry, by N-number and event date, checked against the reported serial number, make and model.

Defining event, 2008 on

Of 1 case NTSB coded with a defining event. All defining events

In the probable cause, 2008 on

Findings NTSB made part of the probable cause. A case can have several. All findings

Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.engine_model_code IN ('42305')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" 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.

FAA incident reports · 6

Matched to this engine model through the registry, by N-number and event date, checked against the reported make and model.

Incident 20250324005709IPiper PA-44-180 · Pensacola, FLMaintenance personnel failed to reinstall all right-wing tip cap lower fasteners following maintenance and returned aircraft to service. Pilot failed to observe missing fasteners during preflight. During a training flight the wing tip cap departed the…Mar 24, 2025 · N551MD · Minor damageIncident 20240804011249IPiper PA-44-180 · Madras, ORWhile in the pattern at S33, instrutor and student started practice for engine failure below 3000' while on the crosswind leg. Ran through all checklists for engine failure while at low altitude and simulated feather on the left engine with power. Performed a…Aug 4, 2024 · N552MD · Minor damageIncident 20240422009139IPiper PA-44-180 · Gaithersburg, MD[privacy data omitted] Departed kgai, rwy 32. After departure on the upwind leg, the right wingtip separated from the aircraft and landed in the montgomery county police training academy parking lot in Gaithersburg, MD. There were no injuries and no damage to…Apr 22, 2024 · N302VM · Minor damageIncident 20220918017099IPiper Seminole · Gaithersburg, MDUpon touchdown nose landing gear collapsed. Aviator had three green and one in the mirror on final and verified several times. No abnormal indications were present. Airplane touched down on mains and when nose came down it collapsed causing airplane to skid…Sep 18, 2022 · N302VM · Minor damageIncident 20191204021129IPiper PA-44-180 · Brooksville, FLOn December 04/2019, at 1851 EST (2351 z), while on an instructional flight, the Piper PA-44-180, N209PT, registered to "pilot training center LLC" (miami, FL), aborted the departure roll on runway 21 at the Brooksville-Tampa Bay Regional Airport (bkv -…Dec 4, 2019 · N209PT · Minor damageAccident 20150828021389APiper PA-44-180 · Houlton, MEDuring final approach to runway 05 at hul, the pilot initially impacted the tree line approximately 1.3 miles from the approach end of runway 05 continuing through approximately 300 ft. of tree tops. Aircraft impacted the ground approximately 50 feet after…Aug 28, 2015 · N553MD · Destroyed · 1 fatal
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE engine_model_code IN ('42305')
  ORDER BY event_date DESC, report_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.

Service difficulty reports · 27

See all 27 difficulty reports
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 = 'O360E1A6D'
  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 · 32

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 32 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 ('42305')
    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.