OpenAirDocs.org

Franklin 6A4150 series

Open the Markdown

Engine model · Reciprocating · 150 hp · registry code 27024

Manufacturer (registry)
FRANKLIN
Model
6A4150 SERIES
Registry code
27024
Installed in
623 registered aircraft
Type
Reciprocating
Power
150 hp
Data sheet
TCDSE-238
Holder
Franklin Sp. z.o.o.

The registry names only the engine series, so ADs for every model in the series are matched.

On this page

Airworthiness directives that may apply · 4

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

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 ('27024'))
  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 · 623

N108DFMurtagh Johnny T · Lexington, MSBuilt 1946 · S/N 10860N108WWBingham Merle G · Hickson, NDBuilt 1946 · S/N 108-384N125HKCarter Steven R · Bend, ORBuilt 1947 · S/N 108-2056
See all 623 registered aircraft
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 ('27024')
  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 · 421

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 48 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 93 cases with NTSB’s older coding, defined in its coding manual.

NTSB WPR26LA313Accident · No injuriesClass 4 · LimitedInvestigation openStinson 108-1 · Joseph, ORAug 22, 2026 · N8391K · Substantial damageNTSB CEN25LA243Accident · Serious injuriesClass 4 · LimitedFinal reportStinson 108 · Seguin, TXThe pilot’s failure to turn off the magneto switch before repositioning the propeller by hand which resulted in an inadvertent engine start.Jul 8, 2025 · N97577 · No damageNTSB ANC25LA052Accident · Minor injuriesClass 3 · LimitedPreliminary reportStinson 108 · Cantwell, AKOn June 14, 2025, about 1415 Alaska daylight time, a Stinson 108 airplane, N2101Q, was substantially damaged when it was involved in an accident near Cantwell, Alaska. The pilot and passenger sustained minor injuries. The airplane was operated as a Title 14…Jun 14, 2025 · N2101Q · Substantial damage
See all 421 investigations
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 ('27024')
  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 · 375

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

Accident 20260822012139AStinson 108-1 · Joseph, ORPilot flew from sandpoint (kszt) to Joseph (kjsy) for a fuel stop. While on final approach noticed the winds were favoring a heavy crosswind and decided to abort the landing and go around. Pilot flew to nearby enterprise airport (8S4) where the winds were…Aug 22, 2026 · N8391K · Substantial damageAccident 20250708009339AStinson 108 · Marion, TXOn July 8, 2025, at approximately 1810 CDT, aircraft [privacy data omitted] was involved in an accident while being prepared for flight from Zuehl Airport (1TE4). Prior to a refuel, the pilot-in-command manipulated the position of the propeller, induced…Jul 8, 2025 · N97577 · Minor damageIncident 20250706012089IBellanca 14-13 · Lakeville, MNPIC departed to destination airport. PIC stated that due to an aviation event at the destination airport the traffic pattern was busier than usual. Additionally, PIC stated that he was distracted due to operational differences (RPM restriction) of newly…Jul 6, 2025 · N86719 · Minor damage
See all 375 incident reports
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 ('27024')
  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 · 3

SDR 2007FA0000257Rocker Shaft · brokenTHE NR 3 CYLINDER ROCKER ARM SHAFT FAILED (BROKE) AT THE CENTER SUPPORT POSITION. ADDITIONALLY, (2) OF THE (3) ROCKER ARM BOSS SECURING BOLTS FAILED AND THE THIRD BOLT PULL OUT OF THE HEAD.Feb 24, 2007 · N9088K · Univar 1081 · Reciprocating Engine Cylinder SectionSDR MASA200400073Bulb · burned outDURING PREFLIGHT THE RT FWD EXTERIOR EMERGENCY LIGHT INOPERATIVE. MECHANIC REPLACED BULB.Feb 7, 2004 · N97314 · Cndair CL6002B19 · Emergency LightingSDR 20010403CW003Spinner · destroyedON CLIMBOUT A VIBRATION DEVELOPED THAT CONTINUED TO INCREASE IN AMPLITUDE. THE FLIGHT WAS ABORTED. SUBSEQUENT INVESTIGATION REVEALED THAT THE FORWARD PLASTIC SPINNER BULKHEAD HAD FAILED AROUND ITS PERIPHERY ALLOWING THE SPINNER TO WOBBLE. CONTINUED OPERATIOSep 16, 2000 · N74231 · Blanca 1413 · Propeller Spinner 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 = '6A4150'
  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 · 16

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.

STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22Swift Fuels LLC · Lists 6A4-150-B3STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.Alcor LLC · Lists 6A4-150-B3STC SE1311SOInstallation of Shivers carburetor temperature gauge with a Richter Aero Equipment B-5 carburetor temperature probe.LegacySTC.com · Lists 6A4-150-B3
See all 16 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 ('27024')
    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.