Engine model · Turbo-shaft · 1,400 hp · registry code 41613

Manufacturer (registry)
LYCOMING
Model
T5313B
Registry code
41613
Type
Turbo-shaft
Power
1,400 hp
Data sheet
TCDSE17EA
Holder
Ozark Aeroworks LLC

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

On this page

Airworthiness directives that may apply · 15

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

1971In forceSuperseded2026
ADs by the year they took effect: 17 ADs
19711
19753
19781
19871
19951
19961
19971
19981
20023
20062
20091
20221
See all 17 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 ('41613'))
  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.

Registered aircraft · 8

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 ('41613')
  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 · 4

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 2 cases 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

First occurrence, 1982 to 2007

Of 1 case with NTSB’s older coding, defined in its coding manual.

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 ('41613')
  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 20250818015689IBell Helicopter UH-1D · Deland, FLOn 08/18/2025, the airman listed was operating a helicopter ([privacy data omitted]) at Deland municipal airport (ded). The pilot mismanaged the collective controls during flare and landing sequence and induced a collective bounce. The collective bounce…Aug 18, 2025 · N849DB · Substantial damageAccident 20250216018269ABell Helicopter UH-1D · Deland, FLOn 02/16/2025 a UH-1D struck it's tail and tail rotor during a repositioning flight at Deland municipal airport (ded). The FAA was notified of the accident via a FAA hotline report on 9/4/2025. While attempting to relocate the accident aircraft from one…Feb 16, 2025 · N849DB · Minor damageAccident 20130916018889ABell UH-1B · Detroit, ORAfter releasing an external load of logs in a 200 foot hover, the entire tail boom separated from the fuselage of N204UH. The helicopter immediately crashed killing the pilot. This office reviewed the helicopter's maintenance documents and found several…Sep 16, 2013 · N204UH · Destroyed · 1 fatalIncident 20060314005899IBell UH1H · St. James City, FL(-23) Flight departed buckingham field at approximately 0900 hours. First flight of day to build time and practice landings on helipads. Flying pilot landed in tail low position on elevated helipad with skids overhanging pad. Aircraft rocked back bending the…Mar 14, 2006 · N850M · Minor damageAccident 19840612024259ABell 205A1 · Talkeetna, AKHelicopter experienced intensive vibration. Autorotation was accomplished. 32 inches of rotor blade skin missing.Jun 12, 1984 · N58116 · Substantial damageAccident 19760913034699ABell 205A1 · Drift River, AKPlt rprtd wind gusting 15K.wind estimated 50-60K aftr accident.Sep 13, 1976 · N58116 · Substantial damage
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 ('41613')
  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 · 147

See all 147 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 = 'T5313B'
  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 · 3

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.

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 ('41613')
    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.