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U/A Canada PT6A-25

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Engine model · Turbo-prop · 550 hp · registry code 61525

Manufacturer (registry)
U/A CANADA
Model
PT6A-25
Registry code
61525
Installed in
1 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
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 ('61525'))
  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 ('61525'))
  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 · 1

N172EEBemidji Aviation Services Inc · Bemidji, MNBuilt 1981 · S/N U-172
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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 ('61525')
  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

NTSB WPR15LA203Accident · No injuriesLimited investigationFinal reportBeech C 99 · Salt Lake City, UTThe airplane’s unmanageable right yaw during takeoff for reasons that could not be determined because postaccident examination of the rudder and rudder assembly did not reveal any anomalies that would have precluded normal operation.Jun 30, 2015 · N6199D · 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 ('61525')
  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 · 3

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

Accident 20150630011069ABeech C-99 · Salt Lake City, UTPilot tookoff on runway 16L at slc. Upon rotation pilot noticed a yawing to the right and he was unable to correct. He added rudder trim to counteract the yawing, unfortunately, he added the trim the wrong direction and compounded the problem. Pilot was…Jun 30, 2015 · N6199D · Substantial damageIncident 19900220018699IBeech C99 · Portland, ORLanding gear failed to extend. Emergency procedures used. Landed safely. Defective landing gear power pack motor.Feb 20, 1990 · N6199DIncident 19840821053689IBeech 99 · Oxnard, CAUnsafe gear indication. Tower fly by showed gear down. Landed safe. Faulty landing gear circuit breaker.Aug 21, 1984 · N6199D
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 ('61525')
  ORDER BY event_date DESC, report_number DESC"

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Service difficulty reports · 20

SDR CA151117014Fuel Control · malfunctioned(CAN) FIELD SERVICE REPRESENTATIVE WAS JUST INFORMED OF TWO EVENTS ON THE SAME AIRCRAFT THIS IS THE SECOND EVENT, OCCURRED JUST AFTER TAKE-OFF FOR A TRAINING MISSION. IN THE FIRST CIRCUIT, THE CREW REALIZED THAT THE ENGINE PARAMETERS WERE STABILIZED ON FULL PJun 9, 2015 · Emb EMB312 · Fuel Control/Turbine EnginesSDR CA150927001Engine · malfunctioned(CAN) THIS EVENT WAS RE-CLASSIFIED FROM CAT 3 TO CAT 2. PILOT REPORTED THE FOLLOWING: "THE PILOT NOTICED THAT THE PCL WAS NOT MOVING FREELY ON THE PRE-FLIGHT. IT WAS MENTIONED TO THE GROUND CREW AND THEY CLASSIFY IT WAS NORMAL. 45 MIN INTO THE FLIGHT THE PILOMay 4, 2015 · Pilats PC7 · Engine (Turbine/Turboprop)SDR CA150519015Line · leaking(CAN) AFTER LANDING WITH THE POWER LEVER AT IDLE, THE NG DROPPED TO 44 PERCENT WITH AMBER CAUTION AND NP DROPPED TO APPROXIMATELY 700. TROUBLESHOOTING FOUND A LEAKING P3 LINE. THE TUBE WILL BE FORWARDED TO MFG SERVICE INVESTIGATION FOR FURTHER ANALYSIS.Apr 7, 2015 · Pilats PC7 · Engine (Turbine/Turboprop)
See all 20 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 = 'PT6A25'
  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 · 14

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 SE386NEInstallation of Turbo Products PMA parts.Audco 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, IncSTC SE4570SWRevise accessory drive spline, P/N 3008181.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 ('61525')
    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 · 412

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.

3019136CPRing, PlasticCore Parts LLC · PMA PQ05326NM · Replaces 3019136 · Jul 10, 20263012928CPSpacer, SteppedCore Parts LLC · PMA PQ05326NM · Replaces 3012928 · Jul 10, 20263045951-02AADetector, Chip, MagneticAero Attitude, LLC · PMA PQ00001CB · Replaces 3045951-02 · May 27, 2026
See all 412 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-25'])) > 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.