Engine model · Turbo-prop · 550 hp · registry code 61573

Manufacturer (registry)
U/A CANADA
Model
PT6A-25A
Registry code
61573
Installed in
0 registered aircraft
Type
Turbo-prop
Power
550 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 · 4

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

1980In forceSuperseded2026
ADs by the year they took effect: 4 ADs
19801
19971
20021
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 ('61573'))
  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 · 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 ('61573'))
  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 · 10

SDR CA151216013Line · corroded(CAN) DURING CRUISE, THE PILOT RETARDED THE POWER LEVER AND GOT NO RESPONSE FROM THE ENGINE. HE TRIED INCREASING TO MAX TORQUE AND GOT A RESPONSE TO 750 FT-LB. SUBSEQUENT ATTEMPT TO THROTTLE BACK WAS UNSUCCESSFUL. THE ENGINE WAS THEREFORE SHUTDOWN AND AN UNEDec 11, 2015 · Amtr JODELD11 · Engine Fuel DistributionSDR CA151006009Engine · malfunctioned(CAN) PILOT EXPERIENCED INABILITY TO MODULATE THRUST DURING FLIGHT. TORQUE DID NOT RESPOND WHEN THE PLA WAS DECREASED TO IDLE POWER. PILOT LANDED THE ACFT UNEVENTFULLY.Sep 22, 2015 · Engine (Turbine/Turboprop)SDR CA150408001Turbine Wheel · damaged(CAN) IT WAS JUST REPORTED THAT DURING AN ENGINE RUN AFTER A DAILY DESALINATION WASH, THE PROPELLER WENT IN FEATHER AND DAMAGE WAS OBSERVED TO THE TURBINE. THE OPERATOR DECIDED TO DISASSEMBLE THE HOT SECTION FOR REVIEW AND FOUND SERIOUS DAMAGE. A FRACTURED PMar 24, 2015 · Turbine SectionSDR CA140620007Engine · power loss(CAN) AIRCRAFT MADE AN EMERGENCY LANDING FOLLOWING WHAT IS REPORTED TO BE AN ENGINE POWER LOSS. THERE WAS NO INJURIES TO THE PILOTS AND EXTENT OF AIRCRAFT DAMAGE, IF ANY, IS UNKNOWN. THE MANUAL OVERRIDE WAS NOT USED. OFFER OF ASSISTANCE WILL MADE TO THE MAF.Jun 11, 2014 · Engine (Turbine/Turboprop)SDR CA140602011Chip Detector · broken(CAN) HAD TO ABORT A FLIGHT DUE TO UNEXPECTED SMOKE FROM THE RT EXHAUST. THE ACFT LANDED UNEVENTFUL. THE SUBSEQUENT INSPECTION IDENTIFIED A BROKEN REDUCTION GEAR BOX MAGNETIC CHIP DETECTOR. THE PART IS UNDER INVESTIGATION.Apr 23, 2014 · Pilats PC7 · Engine (Turbine/Turboprop)SDR CA120821004Engine · failed(CAN) DURING TAXIING, THE PILOT NOTED THE ENGINE PERFORMANCE PARAMETERS DECAYING FOLLOWED BY FIRE AND SMOKE EXITING THE EXHAUST STUBS. THE PILOT IMMEDIATELY SHUTDOWN THE ENGINE AS PRECAUTION. ACFT WAS TOWED TO THE HANGAR. THE ENGINE WAS REMOVED FROM THE ACFTAug 14, 2012 · Engine (Turbine/Turboprop)SDR CA120411002Engine · failed(CAN) DURING A TRAINING MISSION, AFTER TAXI TO RUNWAY HOLDING POSITION, NG WAS INDICATING 57 PERCENT, (NORMAL IDLE IS 55 PERCENT +-1 PERCENT. THE ENGINE FLAMED OUT AFTER A SLIGHT RETARDATION OF THE PCL TO IDLE POSITION.Apr 4, 2012 · Engine (Turbine/Turboprop)SDR CA120423001Engine · flamed out(CAN) WHILE HOLDING SHORT OF THE RUNWAY PRIOR TO T/O, AS THE STUDENT PILOT WAS PERFORMING PREFLIGHT CHECKS, THE INSTRUCTOR NOTED THAT THE ENGINE COMPRESSOR SPEED WAS IN THE IDLE RANGE BUT THE POWER LEVER WAS NOT. UPON RE-ADJUSTING THE POWER LEVER TO IDLE, THEApr 4, 2012 · Engine (Turbine/Turboprop)SDR CA110606007Engine · power loss(CAN) ACCIDENT THE MILITARY TRAINER CRASH LANDED IN A FIELD FOLLOWING AN ENGINE POWER LOSS. BOTH PILOTS ESCAPED WITHOUT INJURIES. THE ENGINE HAD UNDERGONE AN HSI 4 HOURS PRIOR TO THIS ACCIDENT. THE MINISTRY OF DEFENSE HAS REQUESTED ENGINE MFG PRESENCE FOR THMay 29, 2011 · Cvac 34032 · Engine (Turbine/Turboprop)SDR CA050527024Engine · malfunctionedDURING DESCENT, THE ENGINE EXPERIENCED AN UNCOMMANDED DECREASE IN TORQUE, ACCOMPANIED BY AN INCREASE IN TURBINE TEMPERATURE. THE ENGINE DID NOT RESPOND TO THROTTLE INPUT AND THE PILOT SHUT THE ENGINE DOWN IN FLIGHT. THE ENGINE WAS SUBSEQUENTLY RELIT IN FLIGHMay 14, 2005 · Pilats PC7 · Engine (Turbine/Turboprop)
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 = 'PT6A25A'
  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 · 12

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 SE00010ENInstructions for Continued Airworthiness for the PT6A-25, and, -25A 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 SE000010ENInstructions for Continued Airworthiness for the PT6A-25 and PT6A-25A 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, Inc.STC 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 SE1269EAStripping and recoating of compressor turbine blades, P/N 3023401, with Walbar Metals, Inc.Airwork CorporationSTC SE5601SWReplacement splined end and oil mist lubrication on accessory drive gearshaft.Aviall of Texas, IncSTC 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 ('61573')
    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 · 416

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 416 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-25A'])) > 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.