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Pratt & Whitney JT3D-3B

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Engine model · Turbo-fan · registry code 51686

Manufacturer (registry)
P & W
Model
JT3D-3B
Registry code
51686
Installed in
3 registered aircraft
Type
Turbo-fan
Power
18,000 lb thrust
Data sheet
TCDS1E8
Holder
Pratt & Whitney Division

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

On this page

Airworthiness directives that may apply · 14

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

1964In 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 ('51686'))
  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 · 3

N624RHOmega Air Inc · San Antonio, TXBuilt 1968 · S/N 19624N707GFAircraft Endeavors LLC · San Antonio, TXBuilt 1974 · S/N 20804N707MQAircraft Endeavors LLC · San Antonio, TXBuilt 1977 · S/N 21368
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 ('51686')
  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 · 2

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 2 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

NTSB ENG15IA017Incident · No injuriesIncident investigationFinal reportBoeing 707 338C · Victorville, CAthe fracture of one 1st stage turbine blade from a high cycle fatigue crack that originated from a break in the coating on the leading edge of the blade. The cause for the break in the coating could not be determined. Contributing to the uncontained release…Apr 10, 2015 · N624RH · Minor damageNTSB DCA11PA075Accident · Minor injuriesFinal reportBoeing 707-321B · Point Mugu, CAthe failure of a midspar fitting, which was susceptible to fatigue cracking and should have been replaced with a newer, more fatigue-resistant version of the fitting as required by an airworthiness directive. Also causal was an erroneous maintenance entry…May 19, 2011 · N707AR · 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 ('51686')
  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 · 1

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

Accident 20110518024499ABoeing 707-321B · Point Mugu, CAOn may 18, 2011, at 1727 pacific daylight time, an experimental Boeing 707-321B, N707AR, collided with terrain during takeoff from Naval base Ventura county, Point Mugu, California. Omega aerial refueling services, inc., was operating the airplane as a local…May 18, 2011 · N707AR · Destroyed
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 ('51686')
  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 · 218

SDR IXXA20121001028OBattery · inoperativeF/A EMERGENCY FLASHLIGHTS FOUND INOPERATIVE. R & R THE RT EMERGENCY FLASHLIGHT AND BATTERIES IAW MM 16.02. OPS CHECK GOOD.Oct 1, 2012 · N71CX · Doug DC862F · Emergency EquipmentSDR IXXA20120907023OEngine · stalledDURING TAKEOFF ROLL, CREW EXPERIENCED A COMPRESSOR STALL ON THE NR 3 ENGINE. TAKEOFF WAS REJECTED AT 85 KIAS AND 1.96 EPR. RETURNED BACK TO GATE. MX PERSONNEL PERFORMED A VISUAL INSPECTION OF NR 3 ENGINE, NO DEFECTS OBSERVED. ACCOMPLISHED ENGINE RUN UP TO Sep 7, 2012 · N71CX · Doug DC862F · Engine (Turbine/Turboprop)SDR IXXA10SMN068SSkin · corrodedDURING ROUTINE C-CHECK INSP, FOUND RT WING UPPER SKIN CORRODED AT STA XRS 38.000 -112.000. REMOVED CORROSION. FOUND OUT OF LIMITS. PERFORMED NDT INSP. NO DISCREPANCY FOUND. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. FABRICATED NEW SKIN, REPAIR DOUBLEJun 18, 2010 · N71CX · Doug DC862F · Wing, Plate/Skin
See all 218 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 = 'JT3D3B'
  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 · 5

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 SE1617GLInstallation of Ametek 8TJ124GGR1 digital mass fuel flow transmitter.ABX Air IncorporatedSTC SE01110ATRemove and replace JT3D main accessory gearbox housing split line gasket with PTM International gasket.Jet Avion Corporation · Lists JT3D SeriesSTC SE3818SWInstall 90 KVA integrated drive generator system. Data pertaining to this mod are considered adequate for the following engines: serial numbers 644860, 6454668, 669645, 669350, 645346, and 645520.L-3 Communications Integrated Systems LPSTC SE87WEReplace the airfoils on P&WA P/Ns 505351, 536751, 665951, 665851 first stage turbine nozzle guid vanes on P&WA engine models listed.Chromizing CompanySTC SE1WEValve assembly 126495. Limited to those engines having serial number suffix 'B'.Telecomputing Corp · Lists JT3D Series
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 ('51686')
    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 · 263

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.

DEC01- 039-501Lever - Pressure Ratio Bleed ControlTurbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces 393909 · Nov 16, 2020322092WEBoltWencor LLC · PMA PQ1370NM · Replaces 322092 · Nov 19, 2017234343WEWasher, ConvexWencor LLC · PMA PQ1370NM · Replaces 234343 · Nov 19, 2017
See all 263 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 ('1E8')
    AND len(list_intersect(tcds_models, ['JT3D-3B'])) > 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.