AD 75-13-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | BH.125 Series 400A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | BH.125 Series 600A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A-522 | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/R-522 | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/S-522 | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/R | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/RA | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 400A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes |
Unsafe Condition
Failure of cockpit side window Panel "C" assemblies due to original part numbers 25FN57A(L/H), 25FN4865A, 25FN4865A/B(L/H), 25FN58A(R/H), 25FN4866A, or 25FN4866A/B(R/H).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove original cockpit side window Panel "C" assemblies with specified part numbers and install replacement parts per Hawker Siddeley Alert Service Bulletin 56-A16, Rev 1, and Modification Service Bulletin 56-16 (2410), Rev 2, or FAA-approved equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within two calendar years time in service on original cockpit side window Panel "C" assemblies, or 25 hours time in service on such panels after August 15, 1975, whichever occurs later.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hawker Siddeley DH/BH. 125 airplanes certificated in all categories.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Cockpit Window
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_75-13-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-13-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes Subject: Cockpit Window Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/15/1975 Make: Textron Aviation Inc. Model: BH.125 Series 400A | BH.125 Series 600A | DH.125 Series 1A | DH.125 Series 1A-522 | DH.125 Series 1A...Show more Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-13-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2302 AD NUMBER: 75-13-05 SUBJECT HEADING: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes ACTION: SUMMARY: DATES: Effective August 15, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-13-05 HAWKER SIDDELEY AVIATION, LTD: Amendment 39-2233 as amended by Amendment 39- 2302. Applies to Hawker Siddeley DH/BH. 125 airplanes certificated in all categories. Compliance required as indicated, unless already accomplished. To prevent possible failure of cockpit side window Panel "C" assemblies, within two calendar years time in service on original cockpit side window Panel "C" assemblies, or 25 hours time in service on such panels after the effective date of this AD, whichever occurs later, remove the original cockpit side window Panel "C" assemblies having part numbers given in the following table and install in place thereof the corresponding new window assemblies given in the table, in accordance with the instructions for the specific airplane model contained in Hawker Siddeley Aviation, Ltd., Alert Service Bulletin 56-A16, Revision 1, dated May 29, 1974, and accompanying Modification Service Bulletin 56-16 (2410), Revision 2, dated May 23, 1975, or an FAA approved equivalent. ORIGINAL PART NO. REPLACEMENT PART NO. 25FN57A(L/H) replace with 25-6FN219/1A or 25-6FN219/7A 25FN4865A or replace with 25-6FN219/1A or 25FN4865A/B(L/H) 25-6FN219/7A 25FN58A(R/H) replace with 25-6FN220/2A or 25-6FN220/8A 25FN4866A or replace with 25-6FN220/2A or 25FN4866A/B(R/H) 25-6FN220/8A Amendment 39-2233 became effective June 4, 1975. This amendment 39-2302 becomes effective August 15, 1975. FOOTER:
Document Text
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AD Final Rules - DRS_75-13-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-13-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes Subject: Cockpit Window Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/15/1975 Make: Textron Aviation Inc. Model: BH.125 Series 400A | BH.125 Series 600A | DH.125 Series 1A | DH.125 Series 1A-522 | DH.125 Series 1A...Show more Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-13-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2302 AD NUMBER: 75-13-05 SUBJECT HEADING: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Models DH/BH. 125 Airplanes ACTION: SUMMARY: DATES: Effective August 15, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-13-05 HAWKER SIDDELEY AVIATION, LTD: Amendment 39-2233 as amended by Amendment 39- 2302. Applies to Hawker Siddeley DH/BH. 125 airplanes certificated in all categories. Compliance required as indicated, unless already accomplished. To prevent possible failure of cockpit side window Panel "C" assemblies, within two calendar years time in service on original cockpit side window Panel "C" assemblies, or 25 hours time in service on such panels after the effective date of this AD, whichever occurs later, remove the original cockpit side window Panel "C" assemblies having part numbers given in the following table and install in place thereof the corresponding new window assemblies given in the table, in accordance with the instructions for the specific airplane model contained in Hawker Siddeley Aviation, Ltd., Alert Service Bulletin 56-A16, Revision 1, dated May 29, 1974, and accompanying Modification Service Bulletin 56-16 (2410), Revision 2, dated May 23, 1975, or an FAA approved equivalent. ORIGINAL PART NO. REPLACEMENT PART NO. 25FN57A(L/H) replace with 25-6FN219/1A or 25-6FN219/7A 25FN4865A or replace with 25-6FN219/1A or 25FN4865A/B(L/H) 25-6FN219/7A 25FN58A(R/H) replace with 25-6FN220/2A or 25-6FN220/8A 25FN4866A or replace with 25-6FN220/2A or 25FN4866A/B(R/H) 25-6FN220/8A Amendment 39-2233 became effective June 4, 1975. This amendment 39-2302 becomes effective August 15, 1975. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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