- Manufacturer (registry)
- P&W CANADA
- Model
- PT6A-27
- Registry code
- 52247
- Installed in
- 30 registered aircraft
- Type
- Turbo-prop
- Power
- 680 hp
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 · 11
ADs whose products match this engine model. Each AD’s applicability may narrow it by serial number, part number or configuration.
| 1969 | 1 |
|---|---|
| 1975 | 1 |
| 1977 | 1 |
| 1980 | 1 |
| 1990 | 1 |
| 1992 | 1 |
| 1997 | 1 |
| 2002 | 1 |
| 2011 | 2 |
| 2014 | 1 |
Engine · Pratt & Whitney Canada PT6A-27 series
AD 2014-11-05Reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings, adding scallopsAD 2011-25-12Sun gearAD 2011-20-51GearsEmergency ADAD 2002-23-13Turbine Exhaust DuctsAD 97-04-12Compressor Bleed-off ValveAD 92-15-11Compressor Delivery Air Line (P3) Filter AssemblyAD 90-12-05Engine OverhaulAD 80-08-12Fuel Pump Drive Coupling SplinesAD 75-06-01Gearbox DeteriorationAD 75-11-04Reduction Gearbox Engine DistressAD 69-23-06Fuel PumpsQuery 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 ('52247'))
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.
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 ('52247'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Information bulletins that may apply · 1
Engine · Pratt & Whitney Canada PT6A-27 series
SAIB NE-12-04Turbine/ Turboprop Engine: Reduction GearboxQuery 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 ('52247'))
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.
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 ('52247'))
GROUP BY s.saib_number ORDER BY issue_date DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Registered aircraft · 30
N1544RRas Aviation LLC · Elyria, OHN162DETvpx Aircraft Solutions Inc Trustee · North Salt Lake, UTN189GCCortez Fisher LLC · Kirkland, WA
See all 30 registered aircraftQuery 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 ('52247')
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.
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 ('52247')
ORDER BY n_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB investigations · 7
Aircraft matched to this engine model through the registry, by N-number and event date, checked against the reported serial number, make and model.
Of 5 cases NTSB coded with a defining event. All defining events
Findings NTSB made part of the probable cause. A case can have several. All findings
NTSB WPR25LA248Accident · Minor injuriesClass 3 · LimitedPreliminary reportDe Havilland DHC-6-300 · Whitmore, AZOn August 9, 2025, about 1240 Pacific daylight time, a De Havilland DHC-6-300, N189GC, was substantially damaged when it was involved in an accident near Whitmore, Arizona. Six passengers sustained minor injuries, and the captain, first officer and remaining…NTSB CEN19LA267Accident · Minor injuriesClass 3 · LimitedFinal reportDe Havilland DHC6 · San Marcos, TXThe pilot's delayed go-around attempt and the flight instructor's delayed remedial action that resulted in a nose-down impact with terrain during an attempted go-around.NTSB GAA19CA251Accident · No injuriesData collectionFinal reportDe Havilland DHC2 · McCarthy, AKThe pilot's failure to maintain a proper approach path in gusting wind conditions, which resulted in the airplane landing short of the airstrip and bouncing.NTSB WPR14LA313Accident · No injuriesLimited investigationFinal reportDehavilland DHC 6 300 · Boulder City, NVThe airplane flight crew’s failure to exercise the necessary vigilance and precautions and yield the right of way to the landing helicopter, which resulted in the airplane colliding with the helicopter. Contributing to the accident was the helicopter pilot’s…NTSB ERA11LA239Accident · No injuriesLimited investigationFinal reportBeech BE99 · Cedartown, GAThe failure of the left main landing gear bearings and supports due to inadequate lubrication by unknown maintenance personnel.NTSB ANC72DAA27Accident · No injuriesClosedDehavilland DHC-6 · Prudhoe Bay, AKNTSB ANC71DAA23Accident · No injuriesClosedDehavilland DHC-6 · Prudhoe Bay, AK
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 ('52247')
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.
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 ('52247')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
FAA incident reports · 13
Matched to this engine model through the registry, by N-number and event date, checked against the reported make and model.
Incident 20260430009649IDehavilland DHC-6-300 · Tusayan, AZOn April 30, 2026, at 2142Z (14:42 MST local), a de-havilland DHC-6-300, was involved in a runway excursion event at Grand Canyon National park airport (kgcn), Tusayan, AZ. The aircraft was not damaged. Thirteen passengers and two pilots were not injured. The…Accident 20250809011609ADehavilland DHC-6-300 · Whitmore, AZOn August 9, 2025, about 1240 pacific daylight time, a de havilland DHC-6-300, was substantially damaged when it was involved in an accident near Whitmore, Arizona. Six passengers sustained minor injuries, and the captain, first officer and remaining eight…Incident 20250706007929IPilatus PC-6/B2-H4 · Rangeley, MEOn 7/6/2025 at approximately 1640 local time, a Pilatus PC6 attempted to maneuver away from the KM57 seaplane dock when it struck a moored unoccupied aircraft's wingtip with its rotating propeller. The pilot of the PC6 stated that he encountered an…Accident 20190815017749ADehavilland DHC-6-300 · San Marcos, TXDuring an aborted landing the flying pilot mismanaged the controls and lowered the angle of attack to where the aircraft stuck the ground at a steep angleAccident 20190503015179ADehavilland DHC 2 MK III · Mccarthy, AKCertificate holder was making a landing at ultima thule lodge near Mccarthy, AK. On approach the winds were gusting 20 to 25 knots quartering headwind. The aircraft hit a windshear on short final and contacted 6 to 8 inches below the leadind edge of the…Incident 20190205009919IBeech 99A · Baraboo, WIAircraft nose wheel had fallen off of the aircraft during takeoff from milwaukee, WI. Pilot was unaware. During landing at Wisconsin Dells airport (dll), the aircraft touched down without nose wheel assembly and skidded to a stop on the runway. Damage limited…Incident 20170524006629IDehavilland DHC-6-300 · Grand Canyon, AZAfter interviews and visual inspection of the tire markings made by the aircraft during the excursion, it is evident that the aircraft departed the runway due to mismanagement of flight controls. The markings on the runway show that the nose wheel was in…Accident 20140725016512ADehavilland DHC-6-300 · Boulder City, NVOn 07/25/14 at approximately 1643 PDT, an American Eurocopter AS-350 B4 EC-130 helicopter was struck from behind by a Dehavilland DHC-6 twin otter airplane at the Boulder City airport in Boulder City, Nevada. Both aircraft were operating under the provisions…Accident 20110410007159ABeech 99 · Cedartown, GAThe PIC advised that he had the "green" down and lock lights illuminated for both the nose gear and the right wing landing gear, but could not get the light signal to illuminate for the left wing gear. He said he pumped it a couple times and then decided to…Incident 20100104025749IDhc-6 300 · San Juan, PROn January 04, 2010, captain clifford and first officer hackler were assigned flight #1337, in aircraft N189GC, from stx, st. croix to sig, isla grande airport. After landing in sig and while being ground marshaled into parking position by ramp agents…Incident 19790903034069IDhav DHC6TWNOTTER · Boston, MAFlight returned after fire warning. Replaced detectors.Incident 19790206004949IDhav DHC6TWNOTTER · Boston, MAAborted takeoff due to low torque. Replaced prop governor.Incident 19790124004159IDhav DHC6TWNOTTER · Boston, MAPilot requested priority landing due to no fuel transfer. Fuel quantity indicator was stuck.
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 ('52247')
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.
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 ('52247')
ORDER BY event_date DESC, report_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Service difficulty reports · 642
SDR 2026F00209Fuel Line · kinkedFWD FUEL FLOW FLUCTUATING DURING TAKE OFF ROLL, ABORTED TAKE OFF AND RETURNED TO GATE.SDR TIMA20251226004Electrical Box · contaminatedWHILE IN CRUISE FLIGHT THE CIRCUIT BREAKER PANEL STARTED SMOKING. PILOT REQUESTED APPROACH FOR PRIORITY IN HELENA, MT. PILOT SAID THE SMOKE SHORTLY STOPPED AFTER 5 SECONDS. PILOT HAD A NORMAL LANDING IN KHLN AND CONTACTED MAINTENANCE. MAINTENANCE SAID THAT DE-SDR S9BA2025121500004Gasket · burnedFLT/CREW REPORTED - UPON SETTING CRUISE POWER APPROX. 3 MINUTES AFTER ON FLIGHT # BB - 186 SPB / SSB " FIRE WARNING R ENGINE WITH NO EVIDENCE OF FIRE. THIS A REPEAT ITEM DATED 12/04/2025 - UNIQE CONTROL # S9BA202500003. CHECKED & INSPECTED FUEL NOZZLE SYSTEM
See all 642 difficulty reportsQuery 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 = 'PT6A27' 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.
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 = 'PT6A27' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
STCs that may be installed · 26
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 SE000ENEngines will be maintained IAW 'Maintenance or Reliable Engines(MORE) Program,' Rev 4, dated 8/16/95.STC SE10552SCConversion of Pratt & Whitney Canada Corp. Model PT6A-27 or -28 to a Model PT6A-34 turboprop engine.STC SE02170ATInstallation of Pc Safety Valve Kit
See all 26 STCsQuery 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 ('52247')
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.
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 ('52247')
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_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
PMA parts · 980
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.
3005293CPInsert, Fuel Control Drive Shaft3005293CPInsert, Fuel Control Drive Shaft3006718LASTRIP, INSULATING
See all 980 PMA partsQuery 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 ('E2NE', 'E4EA')
AND len(list_intersect(tcds_models, ['PT6A-27'])) > 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.
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 ('E2NE', 'E4EA')
AND len(list_intersect(tcds_models, ['PT6A-27'])) > 0
ORDER BY supplement_date DESC, drs_guid DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.