Preferred Improvements LLC
Holds 22 approved modifications, most of them for the Douglas DC-3. FAA spelling: Preferred Improvements LLC.
Approved modifications 22 · newest first
2024-05-22ST04605CH · Installation of a Garmin GTS 8000 Traffic Alert and Collision Avoidance System (TCAS) II · DC3C-SC3G, DC3C-S1C3G, DC3C-S4C4G
2021-12-12ST04530AT · Installation of a wingtip modification on DC3C aircraft (specific models listed) · DC3A-S1C3G, DC3C-S4C4G, DC3C-SC3G
2018-12-07SA3-307 · Installation of 145-gallon fuel tanks. Installation of 252-gallon fuel tanks. · DC3-G102, DC3-G102A, DC3-G103A
2018-02-02ST04262CH · Install placarding to restrict total payload to a maximum of six thousand pounds (6,000 lbs) · DC3-G102, DC3-G102A, DC3-G103A
2018-01-18ST04244CH · Installation and Activation of a Saab Grintek Defense Impi II Asset Tracking System · DC3A-S1C3G, DC3A-SC3G, DC3C-R-1830-90C
2017-12-13SA3-434 · Picture window installation and standard window modification. · DC3-G102, DC3-G102A, DC3-G103A
2017-12-13SA3-52 · Radome installation. · DC3-G102, DC3-G102A, DC3-G103A
2017-12-13SA3-15 · Installation of wheel well enclosure doors. · DC3-G102, DC3-G102A, DC3-G103A
2017-12-13SA3-422 · Installation of bird resistant windshield. · DC3-G102, DC3-G102A, DC3-G103A
2017-12-13SA3-113 · Installation of RCA Model AVQ-10 radar antenna swingaway mount SK10136 (SA3-65). · DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G
2017-12-13SA3-139 · Installation of standard C-47 cargo door. · DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G
2017-12-13SA3-461 · Installation of electrically driven emergency hydraulic pump. · DC3-G102, DC3-G102A, DC3-G103A
2017-12-13SA3-78 · Alternate Tee-Bolt radome attachment for STC SA3-52 radome installation. · DC3-G102, DC3-G102A, DC3-G103A
2017-12-13SA211CE · A.P.U. Installation - Ranger Andover Model V-32D-2-1. · DC3-G102, DC3-G102A, DC3-G103A
2017-12-11ST04263CH · Install placarding to restrict passenger count to a maximum of nineteen (19) and total payload to a maximum of seven... · DC3-G102, DC3-G102A, DC3-G103A
2017-11-20ST04261CH · Installation of a Gear Latch & Ground Shift system · DC3-G102, DC3-G102A, DC3-G103A
2017-03-09ST565CH · Installation of a Fairchild F800 or F1000 digital flight data recorder. · DC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G
2017-02-24SA3074NM · This modification requires that the following two (2) placards be placed on the inside of the forward (L.H.) cargo... · DC3A-S1C3G, DC3C-S1C3G
2016-07-15SA4-220 · Installation of tail wheel cover and fairing · DC3-G102, DC3-G102A, DC3-G103A
2016-02-25SA4-230 · Installation of aileron gap closure · DC3-G102, DC3-G102A, DC3-G103A
2016-02-25SA4-228 · Main landing gear doors, actuating system, main landing gear assist bungee, oil cooler fairing and oil cooler fixed... · DC3A-S1C3G, DC3A-S1CG, DC3A-S4C4G
2016-02-12ST04050CH · Installation of Ice Protection Systems · DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G
Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.