Civil Aviation Authority of the Philippines

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    Date: 2024-01-18 21:41:44.290672

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    Date: 2024-01-30 16:38:55.614936

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Standard flexural and tensile strength (and other forces) needed by aircraft window frames

Requested from CAAP by S. Clotario at 09:41 PM on Jan 18, 2024.
Purpose: Research and development
Date of Coverage: 01/18/2024 - 01/18/2024
Tracking no: #CAAP-062211562505

Clotario 09:41 PM, Jan 18, 2024 

Hi! I would like to request for the following information for my undergraduate thesis.

1. Standard flexural and tensile strength needed by aircraft window frames to withstand the forces and stresses mid air.
2. Other stress factors of aircraft window frames that have specifications/standards.
3. If there's none, I would like to request the information on where I could find aircraft window frame sample materials that I can use so I could test it as control sample for my thesis.

Thank you!

Receiving Officer 04:38 PM, Jan 30, 2024 

January 30, 2024

Dear S. Clotario,

Greetings!

Thank you for your request dated Jan 18, 2024 09:41:44 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch.

Your Request

You asked for Standard flexural and tensile strength (and other forces) needed by aircraft window frames.

Response to Request

Your FOI request is approved. Enclosed below is the response from the Flight Standards Inspectorate Service (FSIS):

To help you with your query, you may access and use for your reference the Federal Aviation Administration's (FAA) Advisory Circular No.25.775-1 (Windows and Windshields) via their website at https://www.faa.gov/regulations_policies/advisory_circulars/index.cfm/go/document.information/documentid/22666.

Further, it is important to note that CAAP does not have a specific guidance on this matter. Our regulations are based on standards provided by aircraft manufacturers and state of design. For more detailed and specific guidance, we recommend reaching out to regulatory bodies such as the Federal Aviation Administration (FAA) and European Union Aviation Safety Agency (EASA). 

Your right to request a review

If you are unhappy with this response to your FOI request, you may ask us to carry out an internal review of the response by writing to foi_officer@caap.gov.ph. Your review request should explain why you are dissatisfied with this response, and should be made within 15 calendar days from the date when you received this letter. We will complete the review and tell you the result within 30 calendar days from the date when we receive your review request.

If you are not satisfied with the result of the review, you then have the right to appeal to the Office of the President under Administrative Order No. 22 (s. 2011).

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Respectfully,

CAAP FOI Receiving Officer

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