Engine model · Turbo-prop · 680 hp · registry code 52246

Manufacturer (registry)
P&W CANADA
Model
PT6A-15AG
Registry code
52246
Type
Turbo-prop
Power
680 hp
Data sheet
TCDSE4EA
Holder
Pratt & Whitney Canada Corp.

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

On this page

Airworthiness directives that may apply · 8

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

1970In forceSuperseded2026
ADs by the year they took effect: 8 ADs
19701
19801
19901
19971
20021
20112
20141
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 ('52246'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

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Information bulletins that may apply · 1

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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 ('52246'))
  GROUP BY s.saib_number ORDER BY issue_date DESC"

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Registered aircraft · 40

See all 40 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 ('52246')
  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 · 11

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

NTSB CEN25LA276Accident · Serious injuriesClass 4 · LimitedFinal reportAir Tractor AT-402A · Centralia, MOThe pilot’s failure to maintain clearance from power lines during low-level maneuvering.Jul 22, 2025 · N1534D · Substantial damageNTSB CEN23LA336Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-402B · Alta, IAThe airplane’s encounter with a dust devil, which resulted in a loss of lift, and subsequent collision with powerlines.Jul 29, 2023 · N402PR · Substantial damageNTSB CEN23LA324Accident · 1 fatalClass 3 · LimitedFinal reportAir Tractor AT-402B · Clara City, MNThe pilot’s failure to maintain clearance from a transmission line during an aerial application flight.Jul 25, 2023 · N291DL · Substantial damageNTSB CEN21LA148Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-402B · Moorhead, MSThe pilot did not maintain clearance from a powerline during an aerial application flight.Mar 5, 2021 · N41068 · Substantial damageNTSB GAA19CA163Accident · No injuriesData collectionFinal reportAir Tractor AT 400A · Parma, IDThe pilot's failure to maintain directional control during landing in variable wind conditions, which resulted in the right wing impacting muddy terrain.Mar 11, 2019 · N400DQ · Substantial damageNTSB GAA15CA251Accident · Minor injuriesData collectionFinal reportAir Tractor AT 402A · Fort Pierre, SDThe pilot's failure to maintain obstacle clearance, which resulted in the airplane striking guy-wires during aerial application operations.Sep 4, 2015 · N321DA · Substantial damageNTSB CEN14CA314Accident · Minor injuriesData collectionFinal reportAir Tractor AT 402B · Newport, ARThe pilot misjudged his altitude which resulted in the airplane contacting a wire during the low altitude aerial application maneuver.Jun 21, 2014 · N428JJ · Substantial damageNTSB ERA13CA033Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Newton, GAThe pilot’s failure to maintain clearance from power lines while maneuvering, which resulted in a hard forced landing.Oct 20, 2012 · N502PB · Substantial damageNTSB CEN12LA453Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-402B · Britt, IAThe pilot’s failure to maintain clearance from power transmission lines during an agricultural application operation. Contributing to the accident was the pilot’s distracted attention due to personal cell phone use during flight operations.Jul 17, 2012 · N4843J · Substantial damageNTSB ERA10LA450Accident · No injuriesLimited investigationFinal reportAir Tractor AT402 · Pompano Beach, FLThe pilot's delayed decision to abort the takeoff, which resulted in a runway overrun and a subsequent collision with obstacles and terrain. Contributing to the accident was the airplane's high gross weight.Aug 28, 2010 · N4172U · Substantial damageNTSB DFW07CA151Accident · No injuriesData collectionFinal reportAir Tractor AT-402B · Eldorado, TXThe loss of engine power as result of water contamination due to a faulty seal on the refuel tank port. A contributing factor was t he lack of suitable terrain for the forced landing.Jul 7, 2007 · N712GS · Substantial damage
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 ('52246')
  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 · 14

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

Incident 20260424003729IScholz D E/Clarke A J Lancair IV-P · Seattle, WADuring landing touchdown on runway 32R at (kbfi) Boeing field/King county international airport following a flight from (krdm) roberts field airport, the pilot reported that a wind gust in excess of 20 knots was encountered during touchdown, which caused the…Apr 24, 2026 · N117LH · Minor damageIncident 20250907014239IAir Tractor AT-402B · Brush Lake, MTOn September 8, 2025 the FAA was notified an Air tractor had struck a wingtip in Brush Lake, Montana. The pilot was able to fly the aircraft back to it’s home base in plentywood Montana. Inspection of the aircraft showed damage to the right wing tip to the…Sep 7, 2025 · N116KN · Minor damageAccident 20250722021349AAir Tractor AT-402A · Centralia, MOFAA inspectors arrived on scene and found the aircraft in a cornfield approximately 50 yards from the south edge of that field. Reportedly, the aircraft was spraying corn fungicide onto the field the aircraft crashed into. Due to the pilot not having any…Jul 22, 2025 · N1534D · Substantial damageAccident 20230729008049AAir Tractor AT-402B · Alta, IAAn Air tractor AT-402, clipped some power lines, during aerial application, and came down in a bean field near Alta, IA. POB: 1, no injuries. The aircraft was approximately 75-100 feet AGL to maintain clearance for a power line that ran north and south along…Jul 29, 2023 · N402PR · Substantial damageAccident 20230725012309AAir Tractor AT-402B · Clara City, MNOn July 25, 2023, at approximately 0830 central time, an Air tractor AT-402 departed a private airport after being reloaded to perform aerial application operations to corn fields in the area. The aircraft was gone for approximately one hour, which was longer…Jul 25, 2023 · N291DL · Substantial damage · 1 fatalAccident 20210305003149AAir Tractor AT-402B · Moorhead, MSWhile performing aerial applications near Moorhead ms, the pilot failed to see power lines and struck a utility pole with the left wing breaking off the top four feet of the pole. A crossmember of the utility pole impaled the left wing damaging the front…Mar 5, 2021 · N41068 · Substantial damageAccident 20190311001189AAir Tractor AT-400A · Parma, IDThe pilot had just completed a agricultural dispensing operation and was landing at his home base in Parma, ID. Winds at the time were 4 knots and variable. During approach the pilot noticed a freight train travelling on the tracks parallel to the runway. In…Mar 11, 2019 · N400DQ · Substantial damageAccident 20150904012839AAir Tractor AT-402A · Ft Pierre, SDOn September 4, 2015 at approximately 0900 CST an Air tractor[privacy data omitted] hit a tower guy wire during spray operations. Clear conditions prevailed and it was a VFR flight, no flight plan was filed. The aircraft suffered substantial damage to the…Sep 4, 2015 · N321DA · Substantial damageAccident 20140621008429AAir Tractor AT-402B · Newport, AROn June 21, 2014 at 1245 CST, an Air tractor AT-402B, N428JJ, registered to bell flying, inc., Newport, Arkansas, during routine agricultural disbursement operation, aircraft clipped a power line with the vertical stabilizer and crashed in rice field near…Jun 21, 2014 · N428JJ · DestroyedAccident 20121020024589AAir Tractor AT-502B · Newton, GAAircraft struck upper tower ground wire with the left main gear and damaged the gear and broke the wire on the tower. The aircraft then stalled and headed for the ground. The aircraft struck the ground hard several hundred feet past the tower and the broken…Oct 20, 2012 · N502PB · Substantial damageAccident 20120717015559AAir Tractor AT-402B · Britt, IAPilot was spraying from east to west along the south side of a powerline corridor. As aircraft entered field on east side, it struck the lower power line, cutting the line with the propeller, then dipped into the corn field. Pilot pulled out to gain altitude,…Jul 17, 2012 · N4843J · Destroyed · 1 fatalAccident 20100828045429AAir Tractor AT-402B · Pompano Beach, FLThe pilot reported that he was attempting to takeoff from runway 10, a 3,502-foot-long, 150-foot-wide, asphaltrunway. The airplane accelerated to takeoff speed and lifted-off without incident. As the airplane climbed to 10 to 15FEET above the runway, the…Aug 28, 2010 · N4172U · Substantial damageAccident 20070707015629AAirtrc AT402B · Eldorado, TX(-23) On July 07, 2007, central daylight time, a single engine AT-402B aircraft, N712GS was substantilly damaged following loss of power 3 miles from take off from a Private strip, 10 miles west of Eldorado, Texas. Pilot was forced to land after an engine…Jul 7, 2007 · N712GS · Substantial damageIncident 20030527032779IAirtrc AT502 · Hazen, AR(-23) On 5/27/2003 at 1215 pm CST, 3 miles west of slovak, AR aircraft N1007W, model AT-503 made a landing approach when a sudden updraft (dust devil) caused the l/h wing to be forced up. Right hand wing went down and aircraft blown off center of runway…May 27, 2003 · N1007W · 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 ('52246')
  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 · 23

See all 23 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 = 'PT6A15AG'
  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 · 15

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 SE00004ENInstructions for Continued Airworthiness for the PT6A-11, -11AG, -15AG, -110 and-112 engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals.MORE Company IncSTC SE11141SCThe conversion of the Pratt & Whitney Canada, Model PT6A-15AG to a PT6A-34AG turboprop engineRT Turbines IncSTC SE00014ENInstallation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models.Pratt & Whitney Engine Services Inc.STC SE00020ENInstallation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1Pratt & Whitney Engine Services Inc.STC SE2960SOInstallation of an oil filler cap safety adapter.Jet Avion CorporationSTC SE615GLIncorporation of a fuel flow transducer.Shadin AvionicsSTC SE01805NYInstallation of Fuel Nozzle Adapters using studs and nuts.Atlantic Turbines International Inc.STC SE09257SCConvert P&W Engine Models PT6A-15AG, -27, and -28, into PT6A-34 configuration.Covington Aircraft Engines, Inc.STC SE659NEInstallation of oil tank filler neck check valve, P/N TSA-76A.Aviation Components SupportSTC SE1122EARepair of combustion chamber small exit duct, P/N 3012060.Airwork CorporationSTC SE8319SWConversion of P&W Canada PT6A-15AG to PT6A-27 model configuration.Airforce Turbine ServiceSTC SE7677SWModifiy the P&W Canada PT-6A-27, -28, -15AG to the PT6A-34 configuration.Airforce Turbine ServiceSTC SE1269EAStripping and recoating of compressor turbine blades, P/N 3023401, with Walbar Metals, Inc.Airwork CorporationSTC SE386NEInstallation of Turbo Products PMA parts.Audco CorporationSTC SE4607SWRevise the starter-generator drive spline to provide lubrication with engine oil.Aviall of Texas, Inc
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 ('52246')
    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 · 401

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 401 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 ('E4EA')
    AND len(list_intersect(tcds_models, ['PT6A-15AG'])) > 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.