TCDS 4A21

STCs approved under this data sheet · 238

Current certificates first, most recently changed first.

Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date
  FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s
  WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE tcds_number = '4A21')
  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.

STC SA2EAReplacement of universal type drive shaft P/N 204679 with Bendix flexi- ble drive shaft model 19E40-1B between the P&W J3C or JT4A series engine mounted gearbox and Sundstrand constant speed drive.Bendix CorporationSTC SA401EA-DInstallation of door mounted evacuation slidesAmerican Airlines IncSTC SA532EAInstallation of fabric cargo bins in passenger compartment. (720-048, -023B, -062, -030B, -027) (707-123B, -123, -121B, -295, -227, -155C, -139B) (727-81, -21C, -27, -27C, -95, -21, -90C, -321, -321C, -327C, -323C, -321B, -331)Marino Systems, IncSTC SA677CEInstallation of Crimsco cargo container, P/N 600301, in passenger compartment. (720-023B) (707-121) (707-321)Crimsco, IncSTC SA1052CEReplacement of existing fire detection system with a Kidde dual loop fire detection system. (707-131B)Trans World Airlines IncSTC SA1867SWInstallation of portable solid oxygen system for flight attendant/passenger first-aid useStand-By Systems, IncSTC SA827CEInstall Butler National Corp. flight recorder/communications interface unit. (707-131) (707-331)Trans World Airlines IncSTC SA1-473ADF system modification.Lockheed Aircraft Service CoSTC SA349EAOxygen system.Lockheed Aircraft Service CoSTC SA350EAPassenger Berth Installations. (707-153B) (707-353B)Lockheed Aircraft Service CoSTC SA645EAInstallation of Stateroom Air Conditioning System. Approved for model 707-153B, serial numbers 17925, 17926, 17927 incorporating Horton & Horton STC SA924SW.Lockheed Aircraft Service CoSTC SA81NWMinor modifications to pilot's instrument panel and relocation of autopilot accelerometer and rate gyros for improved performance. (707-153B)Collins Radio CompanySTC SA2605WEInstallation of turbine thrust reverser linkage. (707-100B)Triumph CorporationSTC SA519CEInstallation of logo lights in horizontal stabilizer. (707-131B) (707-331)Trans World Airlines IncSTC SA680CEModify the A.C. essential bus power source circuitry to provide automatic transfer. (707-124) (707-331)Trans World Airlines IncSTC SA784CEInstallation of Bendix standby horizon indicator.Trans World Airlines IncSTC SA1138WEInstallation of fire warning monitoring circuit in engine fire detection system. (707-227, 720-027)Celesco IndustriesSTC SA797EAInstallation of inflight motion picture system. (707-138B)Inflight Motion Pictures, Inc.STC SA2635WEInstallation of forward fan thrust reverser bearings. (707-100B)Triumph CorporationSTC SA2637WEInstallation of aft thrust reverser lower latch hook bearings.Triumph CorporationSTC SA10GLInstallation of Gayston Model 800LG and 800SG static dischargers on transport category airplanes.Gayston CorporationSTC SA311EAInstallation of Aerotherm Corp. Model 1003 stretcher. (707-321) (720-023B) (707-121)Pan American World Airways, IncSTC SA862CEAddition of large cargo door in left hand side of fuselage. (707-131)Boeing CompanySTC SA420EA-DRelocate the L.A.S.I. Flight Data Recorder to the aft fuselage area at Sta. 1462, utilizing a remote vertical accelefometer in the left wheel well. Install a new auxiliary pitot tube and static ports for the flight recorder. Install a Flight Recorder/Communicaticn UnitAmerican Airlines IncSTC SA415EA-DInstallation of Bell & Howell projection systemAmerican Airlines IncSTC SA1937WEInstallation of under-seat baggage restraint system. (720-023B) (707-121B)Heath Tecna CorporationSTC SA858EAModification of rigid high pressure starter air lines on numbers 2 and3 engines. (707-153B) (707-353B)Department of the Air ForceSTC SA856EAInstallation of a compartment bulkhead at fuselage station 978. (707-153B)Department of the Air ForceSTC SA405EA-DConvert all Boeing 707-123B aircraft to the summer passenger cabin configuration (4 first class lounge, 26 first class seats, and 101 tourist class seats) by removing one coat compartment, three first class double seats and installing two additional rows of tourist class seats and LH class dividerAmerican Airlines IncSTC SA555EA-DTo comply with FAR 25.812(e), a lever lock switch will be installed at a point accessible to the forward flight attendant seat and the necessary circuitry will be installed to allow the flight attendant to turn the emergency lights "on"American Airlines IncSTC SA554EA-DInstall underseat luggage retention deviceAmerican Airlines IncSTC SA551EA-DInstallation of autopilot go-around unitAmerican Airlines IncSTC SA420SWInstall Dual Collins FD-108 flight director system replacing Collins ID -105 Flight Director System having dual instrumentation with single steering computerBraniff Airways IncSTC SA607CEInstallation of provisions for dual radio altimeters and single Bendix Model ALA-51A equipment. (707-131)Trans World Airlines IncSTC SA429CEInstallation of an auto thrust system.Trans World Airlines IncSTC SA555CEInstallation of a single SCAT system. (707-131)Trans World Airlines IncSTC SA556CEInstallation of auto-thrust provisions. (707-124)Trans World Airlines IncSTC SA290CEInstallation of a single auto throttle system.Trans World Airlines IncSTC SA425CEInstallation of an auto thrust system.Trans World Airlines IncSTC SA439CEInstallation of logo lights on horizontal stabilizer. (707-124)Trans World Airlines IncSTC SA1700WEInstallation of Dual Litton LTN-51 Inertial Navigation Systems. (707-153B)Litton Systems, IncSTC SA531EAInstallation of EMCO autopilot monitoring system Model No. APMS-E. (707-121B)Pan American World Airways IncSTC SA432CEInstallation of Fenwall fuel vent surge tank protection system. (707-131)Trans World Airlines IncSTC SA516EA-DInstall 30 hz. choke in Bendix Course Indicator P/N 7236-2A12-A2American Airlines IncSTC SA3-708Install motion picture projector and screen. (707-131) (707-331)Trans World Airlines IncSTC SA502EA-DInstall a triple class cabin divider to partition the area between the economy and coach passengers.American Airlines IncSTC SA419EA-DInstall vertical remote accelerometer and adapter harness to permit interchangeable use with a modified or unmodified flight recorder in the existing locationAmerican Airlines IncSTC SA146SOModified structure of aircraft to provide for inertial navigation system.Pan American World Airways, IncSTC SA248CEAutopilot variable angle intercept.Trans World Airlines IncSTC SA375CEAutopilot amplifiers modified to incorporate variable angle intercept feature.Trans World Airlines Inc
Back to TCDS 4A21