SA2728WE
Incorporation of Holcombe Industries HI-LITE SYSTEM P/N 50-1001 for emergency evacuation slide lighting. (707 AIRPLANES EQUIPPED WITH BOEING P/N 65-11685 AND 65-68862 FORWARD THRUST REVERSER DOORS). Held by Maravia CORP of Idaho. Last revised March 28, 1986. System: emergency equipment.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; General Dynamics Corporation; General Dynamics Corporation; General Dynamics Corporation; General Dynamics Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Mitsubishi Heavy Industries Ltd.; Sud Aviation; Tracor Flight Systems Inc.; Tracor Flight Systems Inc.; Tracor Flight Systems Inc.
- Models
- 707, 707, 720, 737, 727, 22M, 22, 30, 30A, DC-8 Series, DC-10 Series, DC-9 Series, YS-11A-600, YS-11A-500, YS-11A-300, YS-11A-200, YS-11, SE 210 Caravelle VIR, 440 Military C-131E, 340, 240 Series
- Type certificates
- 4A21, 4A26, 4A28, A16WE, A3WE, 4A27, 4A27, 4A30, 4A30, 4A25, A22WE, A6WE, A1PC, A1PC, A1PC, A1PC, A1PC, 7A6, 6A6, 6A6, A-793
- On this site
- Boeing 707 9 registered
Boeing 727 37 registered
Boeing 737 2,887 registered
Douglas DC-8 6 registered
Mcdonnell Douglas DC-10 17 registered
Mcdonnell Douglas DC-9 93 registered - The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 8, 2026.