STC SA3927NM

SA3927NM Bruce Aerospace Inc.

580 Mallory Way Carson City, NV 89701 Part 4b Civil Air Regulations 4A21 Boeing Company 707 The system should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. This system has been determined to comply with the applicable airworthiness requirements with the following operative light assemblies: exit identifiers and/or flood lights – two bulbs operative, light track red modules – 50% operative (1 bulb in each 2 bulb group or 2 bulbs in each 4 bulb group), and light track clear modules – 50% operative with a maximum of 2 bulbs in a row out.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

05/19/1988 05/07/2008 04/11/2025 08/02/1988 for Manager West Certification Branch 2 Installation of floor proximity emergency escape path marking system in accordance with Bruce Industries, Inc. Master Drawling List MDL-707 Revision V, dated May 19, 1988, or later FAA approved revisions.

SA3927NM 2