Airworthiness Directive · Amendment 39-11562 · Boeing Model 737-200 Series Airplanes Modified in Accordance with Supplemental Type Certificate (STC) ST00969AT
Boeing Model 737-200 Series Airplanes Modified in Accordance with Supplemental Type Certificate (STC) ST00969AT
Model 737-200 series airplanes equipped with SAF-T-GL0 Aerospace Limited emergency floor path lighting systems installed in accordance with Supplemental Type Certificate (STC) ST00969AT, certificated in any category.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737-200 series airplanes that requires removal of the existing emergency floor path lighting system and replacement with an FAA-approved emergency floor path lighting system. This amendment is prompted by information indicating that the existing emergency floor path lighting system does not provide adequate lighting and cueing for safe evacuation of the airplane in the event of an emergency. The actions specified by this AD are intended to prevent such inadequate lighting and cueing, which could delay or impede the flight crew and passengers when exiting the airplane during an emergency.
To prevent inadequate lighting and cueing of the emergency floor path lighting system, which could delay or impede the flight crew and passengers when exiting the airplane during an emergency, accomplish the following:
(a) Within 6 months after the effective date of this AD, remove the existing photoluminescent emergency floor path lighting system from the airplane. Replace it with an emergency floor path lighting system in accordance with Supplemental Type Certificate ST01829AT, dated February 11, 1999, or an FAA-approved emergency floor path lighting system that is installed in accordance with a method approved by the Manager, Atlanta Aircraft Certification Office (ACO), FAA, Small Airplane Directorate.
