# Lockheed 382B - Type: Aircraft model (FAA registry) - Registry code: 5264104 - Manufacturer (registry): LOCKHEED - Model: 382B - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 4 · Turbo-prop - Seats: 3 - Weight class: 20,000 lb and over - Cruise speed: 262 mph - Certification: Type certificated - Data sheet: [TCDS A1SO](https://openairdocs.org/tcds/A1SO) (OpenAirDocs) - Holder: Lockheed Martin Corporation - Registered aircraft: 0 - Page: https://openairdocs.org/model/lockheed-382b Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026 - [AD 2024-01-02](https://openairdocs.org/ad/2024-01-02): Fuselage · Lockheed 382, 382B, 382E and 9 more. Effective Jan 24, 2024 - [AD 2023-22-06](https://openairdocs.org/ad/2023-22-06): Powerplant · Lockheed Martin 382, 382B, 382E and 8 more. Effective Nov 21, 2023 - [AD 2023-11-10](https://openairdocs.org/ad/2023-11-10): Fuselage · Lockheed Martin 382, 382B, 382E and 9 more. Effective Jul 11, 2023 - [AD 2023-09-13](https://openairdocs.org/ad/2023-09-13): Wings · Lockheed Martin 382, 382B, 382E and 7 more. Effective May 31, 2023 - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2021-09-15](https://openairdocs.org/ad/2021-09-15): Wings · Coulson EC-130Q, C-130A, C-130A and 11 more. Effective Jun 1, 2021 - [AD 2019-25-20](https://openairdocs.org/ad/2019-25-20): Flight controls · Coulson EC-130Q, C-130A, C-130A and 11 more. Effective Feb 28, 2020 - [AD 2015-22-11](https://openairdocs.org/ad/2015-22-11): Wings · Lockheed Martin 382, 382B, 382E and 2 more. Effective Dec 28, 2015 - [AD 2015-18-02](https://openairdocs.org/ad/2015-18-02): Wings · Lockheed Martin 382, 382B, 382E and 2 more. Effective Sep 17, 2015 - [AD 2015-06-08](https://openairdocs.org/ad/2015-06-08): Wings · Lockheed Martin 382, 382B, 382E and 2 more. Effective May 14, 2015 - [AD 2015-05-08](https://openairdocs.org/ad/2015-05-08): Wings · Lockheed Martin 382, 382B, 382E and 2 more. Effective Apr 24, 2015 - [AD 2014-17-02](https://openairdocs.org/ad/2014-17-02): Communications · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 137 more. Effective Sep 9, 2014 - [AD 2012-06-09](https://openairdocs.org/ad/2012-06-09): Standard practices/structures · Lockheed Martin 382, 382B, 382E and 2 more. Effective May 15, 2012 - [AD 2011-15-02](https://openairdocs.org/ad/2011-15-02): Fuel · Lockheed Martin 382, 382B, 382E and 2 more. Effective Aug 19, 2011 - [AD 2009-11-03](https://openairdocs.org/ad/2009-11-03): Wings · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jun 4, 2009 - [AD 2008-14-10](https://openairdocs.org/ad/2008-14-10): Upper engine mount bolts · Lockheed Martin 382, 382B, 382E and 3 more. Effective Jul 22, 2008 - [AD 99-25-04](https://openairdocs.org/ad/99-25-04): Floor to Ring Fittings · Lockheed Martin 382, 382B, 382E and 3 more. Effective Jan 7, 2000 - [AD 97-21-13](https://openairdocs.org/ad/97-21-13): AFM - Power Levers · Lockheed Martin 382, 382B, 382E and 2 more. Effective Nov 24, 1997 - [AD 97-04-15](https://openairdocs.org/ad/97-04-15): Fire Extinguisher Bottle Cartridges · Bombardier DHC-8-101, DHC-8-102, DHC-8-103 and 24 more. Effective Mar 7, 1997 - [AD 96-24-14](https://openairdocs.org/ad/96-24-14): Main Landing Gear Brakes Inspection · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jan 27, 1997 - [AD 95-07-03](https://openairdocs.org/ad/95-07-03): Auxiliary Power Units · Allliedsignal Aerospace Auxiliary Power Units, 707-100 Long Body, 707-100B Long Body and 46 more. Effective May 3, 1995 - [AD 94-26-15](https://openairdocs.org/ad/94-26-15): Outer Wing Assembly · Lockheed Martin 382, 382B, 382E and 2 more. Effective Feb 3, 1995 - [AD 92-10-14](https://openairdocs.org/ad/92-10-14): AFM Changes - Cabin Pressure · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jun 29, 1992 - [AD 89-16-09](https://openairdocs.org/ad/89-16-09): Nose Landing Gear Strut Assembly · Lockheed Martin 382, 382B, 382E and 2 more. Effective Sep 7, 1989 - [AD 88-09-03](https://openairdocs.org/ad/88-09-03): Control Column Base · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jun 7, 1988 - [AD 88-10-06](https://openairdocs.org/ad/88-10-06): Wing Panel Risers · Lockheed Martin 382, 382B, 382E and 2 more. Effective May 25, 1988 - [AD 88-10-05](https://openairdocs.org/ad/88-10-05): Wing Panel Doublers · Lockheed Martin 382, 382B, 382E and 2 more. Effective May 25, 1988 - [AD 87-18-04](https://openairdocs.org/ad/87-18-04): Circuit Breaker Panels · Lockheed Martin 382, 382B, 382E and 2 more. Effective Sep 17, 1987 - [AD 85-23-03](https://openairdocs.org/ad/85-23-03): Fire Estinguisher Squib Insp. · Lockheed Martin 382, 382B, 382E and 2 more. Effective Nov 24, 1985 - [AD 81-12-02](https://openairdocs.org/ad/81-12-02): Longerons · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jun 5, 1981 - [AD 79-05-05](https://openairdocs.org/ad/79-05-05): Throttle Cables · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jan 2, 1980 - [AD 79-25-06](https://openairdocs.org/ad/79-25-06): Window Latch Catches · Lockheed Martin 382, 382B, 382E and 2 more. Effective Dec 19, 1979 - [AD 79-18-12](https://openairdocs.org/ad/79-18-12): Auxiliary Power Units · Airbus BAC 1-11 200 Series, BAC 1-11 400 Series, Manufacturing Company Auxiliary Power Units and 46 more. Effective Oct 8, 1979 - [AD 79-03-04](https://openairdocs.org/ad/79-03-04): Ballscrew Assembly in MLG · Lockheed Martin 382, 382B, 382E and 2 more. Effective Feb 5, 1979 - [AD 74-12-06](https://openairdocs.org/ad/74-12-06): Outer Wing Beam Cap · Lockheed Martin 382, 382B, 382E and 2 more. Effective Dec 8, 1978 - [AD 75-17-04](https://openairdocs.org/ad/75-17-04): Main Frames · Lockheed Martin 382, 382B, 382E and 2 more. Effective Apr 21, 1978 - [AD 75-19-02](https://openairdocs.org/ad/75-19-02): Wing Beam Caps · Lockheed Martin 382, 382B, 382E and 2 more. Effective Mar 20, 1978 - [AD 75-18-04](https://openairdocs.org/ad/75-18-04): Outer Wing Lower Panels · Lockheed Martin 382, 382B, 382E and 2 more. Effective Mar 20, 1978 - [AD 75-18-03](https://openairdocs.org/ad/75-18-03): Outer Wing Spar Cap · Lockheed Martin 382, 382B, 382E and 2 more. Effective Mar 20, 1978 - [AD 76-09-11](https://openairdocs.org/ad/76-09-11): Crank Arm or Servo Valve Assembly · Lockheed Martin 382, 382B, 382E and 2 more. Effective May 14, 1976 - [AD 75-17-35](https://openairdocs.org/ad/75-17-35): Propeller Torque Check · Lockheed Martin 382, 382B, 382E and 2 more. Effective Aug 13, 1975 - [AD 74-24-08](https://openairdocs.org/ad/74-24-08): Engine Throttle Cables · Lockheed Martin 382, 382B, 382E and 2 more. Effective Nov 27, 1974 - [AD 74-24-04](https://openairdocs.org/ad/74-24-04): Lower Center Wing · Lockheed Martin 382, 382B, 382E and 2 more. Effective Nov 20, 1974 - [AD 67-18-03](https://openairdocs.org/ad/67-18-03): Engine Mount Truss · Lockheed Martin 382 and 382B. Effective Mar 12, 1973 - [AD 68-03-03](https://openairdocs.org/ad/68-03-03): Wing Lower Surface · Lockheed Martin 382 and 382B. Effective Feb 10, 1968 Historical (superseded or no longer in force): - [AD 2019-18-09](https://openairdocs.org/ad/2019-18-09) (historical): Wings · Coulson EC-130Q, C-130A, C-130A and 11 more. Effective Oct 11, 2019 - [AD 2013-18-09](https://openairdocs.org/ad/2013-18-09) (historical): Communications · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 137 more. Effective Oct 3, 2013 - [AD 2011-09-04](https://openairdocs.org/ad/2011-09-04) (historical): Wings · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jun 22, 2011 - [AD 2011-09-03](https://openairdocs.org/ad/2011-09-03) (historical): Wings · Lockheed Martin 382, 382B, 382E and 2 more. Effective May 26, 2011 - [AD 2008-20-01](https://openairdocs.org/ad/2008-20-01) (historical): Fuel tank systems · Lockheed Martin 382, 382B, 382E and 2 more. Effective Nov 3, 2008 - [AD 74-08-09 R2](https://openairdocs.org/ad/74-08-09-R2) (historical): Waste Receptacles · Aero Spacelines 377, 377MG, 377SGT and 268 more. Effective Jul 29, 1996 - [AD 96-12-20](https://openairdocs.org/ad/96-12-20) (historical): Upper Truss Mounts · Lockheed Martin 382, 382B, 382E and 2 more. Effective Jul 15, 1996 ## Information bulletins (advisory) (1) - [SAIB NM-09-03](https://openairdocs.org/saib/NM-09-03): Engine Fuel and Control - Implementing Fuel Tank System Airworthiness Limitations. Issued Dec 11, 2008 ## Registered aircraft None registered with this model now. ## NTSB investigations (6) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ANC74AA039](https://openairdocs.org/ntsb/ANC74AA039-141167), Oct 30, 1974: Lockheed 382B (N102AK), Bettles, AK, destroyed, 4 fatal - [NTSB DCA74AZ021](https://openairdocs.org/ntsb/DCA74AZ021), May 23, 1974: Lockheed 382 (N14ST), Springfield, IL, destroyed, 4 fatal - [NTSB CHI72IC055](https://openairdocs.org/ntsb/CHI72IC055), Dec 26, 1971: Lockheed Ga 382 (N9258R), Chicago, IL, incident, no damage, 1 fatal - [NTSB MKC71AK049](https://openairdocs.org/ntsb/MKC71AK049), Mar 18, 1971: Lockheed Ga 382B (N14ST), Wichita, KS, substantial damage - [NTSB OAK70AP058](https://openairdocs.org/ntsb/OAK70AP058), May 18, 1970: Lockheed Ga 382E (N9258R), San Francisco, CA, substantial damage - [NTSB MIA67A0091](https://openairdocs.org/ntsb/MIA67A0091), Mar 7, 1967: Lockheed Ga 382B (N9258R), Memphis, TN, no damage ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (20) As reported by operators and repair stations, by the model named in the report. - [SDR SRAA971209](https://openairdocs.org/sdr/SRAA971209), Dec 10, 1997: HINGE. WORN. DURING FLIGHT 9837 FROM MEX TO RIC, NOTICED AIRCRAFT ELEVATOR CONTROLS HAVE VIBRATION AT HIGH SPEED. INSPECTED AIRCRAFT AND FOUND RIGHT ELEVATOR TRIM TAB HINGE - [SDR SRAA971003](https://openairdocs.org/sdr/SRAA971003), Oct 4, 1997: RIM. CRACKED. POST FLIGHT INSPECTION AT VIE, FOUND THE LT FORWARD MAIN WHEEL RIM HAD BROKEN AND MISSING FLANGE, DEFLATED WHEEL AND REMOVED ASSEMBLY FROM AIRCRAFT. INSPECTED A - [SDR SRAA970514](https://openairdocs.org/sdr/SRAA970514), May 21, 1997: HYD COUPLING. LEAKING. ON APPROACH TO MHZ FLIGHT 508, UTILITY SYSTEM FAILED, SERVICED SYSTEM AND LANDING MADE PER QUICK REFERENCE HANDBOOK. FOUND HYDRAULIC LEAKING AT NR 1 ENGINE FIRE - [SDR SRAA970512](https://openairdocs.org/sdr/SRAA970512), May 17, 1997: TURBINE SUPPORT. CRACKED. DURING POST FLIGHT INSPECTION AT MHZ, FOUND NR 4 ENGINE REAR TURBINE SUPPORT CRACKED. ITEM IS CURRENTLY UNDER INVESTIGATION. - [SDR SRAA970203](https://openairdocs.org/sdr/SRAA970203), Feb 5, 1997: BATTERIES. DISCHARGED. DURING ROUTINE MAINTENANCE, FOUND FLIGHT DECK EMERGENCY EXIT LIGHT WEAK. FOUND BATTERIES FOR EMERGENCY EXIT LIGHT WEAK, REPLACED BATTERIES, OPS CHECKED GOOD. - [SDR SRAA970110](https://openairdocs.org/sdr/SRAA970110), Jan 12, 1997: BUSHING. LOOSE. ON CLIMBOUT AFTER ALL GEAR RETRACTION, NOSE LANDING GEAR WENT UNCOMMANDED TO DOWN AND LOCKED POSITION. ACCOMPLISHED AIR TURNBACK TO PTY, AIRCRAFT LANDED WITHOUT - [SDR SRAA970108](https://openairdocs.org/sdr/SRAA970108), Jan 11, 1997: DOME NUT. LOOSE. DURING FLIGHT, NR 1 PROP LOW OIL LIGHT CAME ON WITH .5 PERCENT RPM FLUX, SHUT DOWN NR 1 ENGINE AND LANDED AT PTY WITHOUT INCIDENT. FOUND NR 1 PROPELLER DOME NUT - [SDR SRAA961205](https://openairdocs.org/sdr/SRAA961205), Dec 14, 1996: DUCT. DISCONNECTED. ON CLIMBOUT AT FL 180, AIRCRAFT WOULD NOT PRESSURIZE. ACCOMPLISHED AIR TURNBACK TO CHS. FOUND CARGO COMPARTMENT AIR CONDITIONING DUCT TO WATER SEPARATOR NOT ATT - [SDR SRAA961201](https://openairdocs.org/sdr/SRAA961201), Dec 2, 1996: CLAMP. LOOSE. AFTER TAKEOFF, CARGO COMPARTMENT OVERHEAT LIGHT CAME ON, ACCOMPLISHED AIR TURNBACK TO MHZ WITHOUT INCIDENT. FOUND CLAMP ON CARGO COMPARTMENT DIVERTER VALVE NOT - [SDR SRAA961008](https://openairdocs.org/sdr/SRAA961008), Oct 14, 1996: TAILCONE. DAMAGED. DURING LANDING NR 1 ENGINE TAILCONE DEPARTED FROM AIRCRAFT. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED NR 2 ENGINE REAR SCAVENGE PUMP CONE PER MM CH 72. - [SDR SRAA960917](https://openairdocs.org/sdr/SRAA960917), Sep 27, 1996: VALVE HOUSING. FAILED. DURING FLIGHT SJ9404 FROM CHS TO HOW, NR 1 ENGINE RPM FLUXED AND DECAYING STEADILY WITH ENGINE TORQUE, TIT, AND FUEL FLOW INDICATIONS FOLLOWING. SHUT DOWN NR 1 - [SDR SRAA960912](https://openairdocs.org/sdr/SRAA960912), Sep 20, 1996: SKIN. CRACKED. ON PREFLIGHT INSPECTION, FOUND RT TRAILING EDGE SKIN BETWEEN FLAP STATION 28 AND 100 FORWARD PANEL SPLIT. REPAIRED SKIN DAMAGE AREA PER LOCKHEED SRM 51-140-12. - [SDR SRAA960703](https://openairdocs.org/sdr/SRAA960703), Jul 15, 1996: FUEL QTY IND. INOPERATIVE. AFTER TAKEOFF, FOUND NR 1 AND 2 FUEL QUANTITY INOP ALONG WITH ALL FUEL FLOW INDICATIONS. ACCOMPLISHED AIR TURNBACK AND LANDED WITHOUT INCIDENT, ITEM IS UNDER IN - [SDR SRAA29603](https://openairdocs.org/sdr/SRAA29603), Feb 4, 1996: COOLING TURBINE. SEIZED. HOW/CHS - FLT AD004 - DURING FLIGHT, FLIGHT DECK COOLING TURBINE SMOKES AND RATTLES, SYSTEM DEACTIVATED. REPLACED FLIGHT DECK AIR CONTITIONING COOLING TURBINE A - [SDR SRAA109505](https://openairdocs.org/sdr/SRAA109505), Oct 5, 1995: HYD PUMP. FAILURE. CHS - FLT ADN5 - DURING FLIGHT FROM CHS, SUCTION BOOST PUMP LIGHT CAME ON, FOUND RESERVOIR EMPTY, SERVICED SYSTEM, BOTH SYSTEMS' PRESSURE WENT BACK UP, THEN NR - [SDR SRAA99516](https://openairdocs.org/sdr/SRAA99516), Sep 26, 1995: RED GEARBOX. FAILED. RMS - FLT ADT4 - DURING FLIGHT, NR 1 ENGINE REDUCTION GEARBOX FAILED. SHUT DOWN NR 1 ENGINE AND LANDED SAFELY. FOUND METAL IN MAG PLUGS AT REDUCTION GEARBOX. RE - [SDR SRAA79502](https://openairdocs.org/sdr/SRAA79502), Jul 6, 1995: COOLING TURBINE. FAILED. FLT 1002 - DURING FLIGHT, COOLING TURBINE CHATTERS AND EMITS BAD ODORS, DEACTIVATE SYSTEM FOR THE REMAINING FLIGHT. REPLACED COOLING TURBINE, OPS CHECKED GOOD P - [SDR 95ZZZW659](https://openairdocs.org/sdr/95ZZZW659), Apr 18, 1995: VALVE HOUSING. LOOSE. DURING DESCENT INTO RMS ON FLT ADT3, NR 1 ENGINE WOULD NOT COME UP ABOVE 97 PERCENT. FOUND HOUSING GOVERNOR ASSEMBLY LOOSE. REPLACED VALVE HOUSING, PERFORMED EN - [SDR 95ZZZX1196](https://openairdocs.org/sdr/95ZZZX1196), Feb 9, 1995: VALVE HOUSING. FAILED. LUTTON - FLT 597F - DURING FLIGHT, NR 3 PROP RPM WENT DOWN TO 95 PERCENT. REDUCED POWER AND LANDED. FOUND NR 3 VALVE HOUSING FAULTY. REPLACED NR 3 VALVE HOUSING - [SDR 95ZZZZ90](https://openairdocs.org/sdr/95ZZZZ90), Jan 21, 1995: ROD. LOOSE. DURING FLIGHT NR ADT4, CREW FELT VIBRATION FROM LEFT WHEEL WELL, REDUCED AIRSPEED AND ALTITUDE THEN DIVERT TO AVB. FOUND OUTER DOOR ACTUATION ROD NOT SECURED TO ## STCs that may be installed (OpenAirDocs) (36) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc - [STC ST02495LA](https://openairdocs.org/stc/ST02495LA): Installation of a multipurpose hatch system. R4 Integration Inc - [STC SA3934NM](https://openairdocs.org/stc/SA3934NM): Fabrication of Biegert Airborne dispersant delivery system (ADDS). Oil Spill Response (Americas) Limited - [STC SA733CE](https://openairdocs.org/stc/SA733CE): Installation of cargo pallets. Telair US LLC - [STC ST427SO](https://openairdocs.org/stc/ST427SO): Installation of cargo rail system. Telair US LLC - [STC ST01635WI-D](https://openairdocs.org/stc/ST01635WI-D): Modification of Rockwell Collins, Inc. VHF-4000 and VHF-4000E installations. Rockwell Collins Inc - [STC SA3132NM](https://openairdocs.org/stc/SA3132NM): Installation of a de-icing system on the Hamilton Standard P/N 554654 propeller spinner. ROBERT W. MURRAY - [STC SA3407NM](https://openairdocs.org/stc/SA3407NM): Installation of a de-icing system on the Hamilton Standard P/N 560501 propeller spinner afterbody. ROBERT W. MURRAY - [STC ST00435CH-D](https://openairdocs.org/stc/ST00435CH-D): Installation of a Collins TCAS-94 Traffic Alert and Collision Avoidance System (TCAS-II) system. Duncan Aviation Inc - [STC ST434CH-D](https://openairdocs.org/stc/ST434CH-D): Installation of Dual Trimble TNL8100 GPS Navigation Systems. Duncan Aviation Inc - [STC SA1625WE](https://openairdocs.org/stc/SA1625WE): Pallet assembly provisions. Lockheed Martin Aeronautics Company - [STC SA02365CH](https://openairdocs.org/stc/SA02365CH): Installation of NASI Supplemental Air-Conditioning System. National Aircraft Service Inc - [STC ST01307WI-D](https://openairdocs.org/stc/ST01307WI-D): Modification of a Collins TVI-920/TVI-920D Vertical Speed/TCAS Indicator installation. Rockwell Collins Inc - [STC SA1274WE](https://openairdocs.org/stc/SA1274WE): triple seat/bunk. Alaska Airlines Inc - [STC SA1371GL](https://openairdocs.org/stc/SA1371GL): Installation of Norton Radome Kit No. 4853CX. Saint-Gobain Performance Plastics Corp - [STC ST09345SC](https://openairdocs.org/stc/ST09345SC): Installation of a dual independent UNS-1Msp navigation management system. New Systems - [STC ST555CH](https://openairdocs.org/stc/ST555CH): Approve operation at runway gradients up to 8 %. Southern Air Transport - [STC ST435CH-D](https://openairdocs.org/stc/ST435CH-D): Installation of a Collins TCAS-94 traffic alert and collision avoidance system (TCAS-II) system. Duncan Aviation - [STC SA1973SW](https://openairdocs.org/stc/SA1973SW): Installation of Collins AP-105V autopilot. Lockheed Martin Aeronautics Company - [STC SA384SO](https://openairdocs.org/stc/SA384SO): Installation of C-5A engine/EBU transportation dolly. Lockheed Martin Aeronautics Company - [STC ST368SO](https://openairdocs.org/stc/ST368SO): Palletized cargo loading system. Lockheed Martin Aeronautics Company - [STC ST372SO](https://openairdocs.org/stc/ST372SO): Air cargo container. Lockheed Martin Aeronautics Company - [STC ST395SO](https://openairdocs.org/stc/ST395SO): 100 inch increase in fuselage length, installation of Allison 501-D22A engines in lieu of 501-D22 engine, and miscellaneous structural and equipment changes incidental to the primary modifications. Lockheed Martin Aeronautics Company - [STC ST398SO](https://openairdocs.org/stc/ST398SO): Installation of Allison 501-D22A engine(s) in the -6C and -10C versions of the Model 382B aircraft. Lockheed Martin Aeronautics Company - [STC ST400SO](https://openairdocs.org/stc/ST400SO): Installation of palletized cargo loading and restraint system. Lockheed Martin Aeronautics Company - [STC ST401SO](https://openairdocs.org/stc/ST401SO): Installation of palletized cargo loading and restraint. Lockheed Martin Aeronautics Company - [STC ST407SO](https://openairdocs.org/stc/ST407SO): Installation of palletized cargo loading and restraint system. Lockheed Martin Aeronautics Company - [STC ST425SO](https://openairdocs.org/stc/ST425SO): Installation of 100 inch fuselage extension, (60 inches forward at F.S. 245 and 40 inches aft at F.S. 737). (382B 4101 thru 4298 ONLY). Lockheed Martin Aeronautics Company - [STC ST441SO](https://openairdocs.org/stc/ST441SO): Installation of a modified center and outer wing. Lockheed Martin Aeronautics Company - [STC ST446SO](https://openairdocs.org/stc/ST446SO): 180 inch increase in fuselage length, installation of Allison 501-D22A engines in lieu of 501-D22 engines, and miscellaneous structural and equipment changes incidental to the primary modification. Lockheed Martin Aeronautics Company - [STC ST531SO](https://openairdocs.org/stc/ST531SO): Increase in maximum landing weight from 130,000 pounds to 135,000 pounds. (382B s/n 4209, 4234, 4248) (382E s/n 4222, 4300). Lockheed Martin Aeronautics Company - [STC SA569AL](https://openairdocs.org/stc/SA569AL): Installation Collins FPC-75 ground proximity warning system. Alaska Intl Air, Inc - [STC SA518AL](https://openairdocs.org/stc/SA518AL): Conversion of left and right auxiliary wing fuel tanks from aircraft fuel to cargo fuel. Alaska International Air Inc - [STC ST527SO](https://openairdocs.org/stc/ST527SO): Installation of inplane cargo system. Southern Air Transport, Inc - [STC SA448AL](https://openairdocs.org/stc/SA448AL): Modification of Lockheed Air Service Model 109C/R Flight Recorder. Alaska International Air - [STC SA303AL](https://openairdocs.org/stc/SA303AL): Installation of 4000 gallon steel tank in the cargo compartment. Interior Airways Inc --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.