AD 63-24-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | MARTIN Models 202, 202A and 404 Aircraft |
| aircraft | Martin-Marietta Corporation | 202A | MARTIN Models 202, 202A and 404 Aircraft |
| aircraft | Martin-Marietta Corporation | 404 | MARTIN Models 202, 202A and 404 Aircraft |
Unsafe Condition
Cracks found in the rear wing spar flange and in the Eastern Airlines P/N 304-5098-1 doubler on several aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect wing rear spar lower cap flanges and doubler at Stations 133 to 135 using 10-power glass and dye penetrant or X-ray. Repair cracked members per Eastern Airlines Drawing No. 404-5098 or approved equivalent. Replace doubler with cracks over 1/2 inch before flight; inspect doublers with smaller cracks every 25 hours' time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 50 hours' time in service after the effective date of this AD, unless already accomplished within the last 450 hours' time in service, and at intervals thereafter not to exceed 500 hours' time in service from the last inspection
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Martin-Marietta Corporation Models 202, 202A, and 404 aircraft
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Wing Spar Caps And Eal Doublers
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_63-24-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 63-24-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MARTIN Models 202, 202A and 404 Aircraft Subject: Wing Spar Caps And Eal Doublers Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/21/1963 Make: Martin-Marietta Corporation Model: 202 | 202A | 404 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 63-24-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 63-24-02 SUBJECT HEADING: MARTIN Models 202, 202A and 404 Aircraft ACTION: SUMMARY: DATES: Effective November 21, 1963. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 63-24-02 MARTIN: Amdt. 645 Part 507 Federal Register November 21, 1963. Applies to All Models 202, 202A and 404 Aircraft. Compliance required as indicated. Due to cracks found in the rear wing spar flange and in the Eastern Airlines P/N 304- 5098-1 doubler, on several aircraft, accomplish the following within 50 hours' time in service after the effective date of this AD, unless already accomplished within the last 450 hours' time in service, and at intervals thereafter not to exceed 500 hours' time in service from the last inspection. (a) Wings which have not been repaired in accordance with Eastern Airlines Drawing No. 404-5098 or equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region, shall be inspected as follows: (1) Inspect the wing rear spar lower cap flanges inboard side of nacelle at Stations 133 to 135. (Cracks develop at bolt holes in fretted area generated by nacelle doubler.) Inspect these areas on left and right wings with 10-power glass and dye penetrant or by an acceptable X-ray procedure or by FAA approved equivalent. Repair cracked members in accordance with Eastern Airlines Drawing No. 404-5098 or an equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region before further flight. (b) Wings which have been repaired in accordance with Eastern Airlines Drawing No. 404-5098 or equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region, shall be inspected as follows: (1) Inspect the wing rear spar lower cap flanges, inboard side of nacelle at Stations 133 to 135 on left and right wings, with 10-power glass and dye penetrant or by an acceptable X-ray procedure or by FAA approved equivalent. If 10-power glass and dye penetrant or FAA approved equivalent method is used, the Eastern Airlines P/N 304-5098-1 doubler or FAA approved equivalent located at wing Station 135 on the rear spar lower cap shall be removed. The repair of cracked member shall be approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, before further flight. (2) Inspect the wing rear spar doubler, Eastern Airlines P/N 304-5098-1 or FAA approved equivalent at Stations 133 to 135 for cracks. Inspect this doubler on left and right wings with a 10-power glass and dye penetrant or by an acceptable X-ray procedure or by FAA approved equivalent. (i) Replace doubler having cracks greater than 1/2 inch in length before further flight with a part of the same part number or an equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (ii) Inspect doublers having cracks less than 1/2 inch in length every 25 hours' time in service. When inspection reveals that the crack exceed 1/2 inch in length the part shall be replaced before further flight with a part of the same part number or an equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (c) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator. This supersedes AD 59-20-03. This directive effective November 21, 1963. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_63-24-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 63-24-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MARTIN Models 202, 202A and 404 Aircraft Subject: Wing Spar Caps And Eal Doublers Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/21/1963 Make: Martin-Marietta Corporation Model: 202 | 202A | 404 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: 63-24-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 63-24-02 SUBJECT HEADING: MARTIN Models 202, 202A and 404 Aircraft ACTION: SUMMARY: DATES: Effective November 21, 1963. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 63-24-02 MARTIN: Amdt. 645 Part 507 Federal Register November 21, 1963. Applies to All Models 202, 202A and 404 Aircraft. Compliance required as indicated. Due to cracks found in the rear wing spar flange and in the Eastern Airlines P/N 304- 5098-1 doubler, on several aircraft, accomplish the following within 50 hours' time in service after the effective date of this AD, unless already accomplished within the last 450 hours' time in service, and at intervals thereafter not to exceed 500 hours' time in service from the last inspection. (a) Wings which have not been repaired in accordance with Eastern Airlines Drawing No. 404-5098 or equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region, shall be inspected as follows: (1) Inspect the wing rear spar lower cap flanges inboard side of nacelle at Stations 133 to 135. (Cracks develop at bolt holes in fretted area generated by nacelle doubler.) Inspect these areas on left and right wings with 10-power glass and dye penetrant or by an acceptable X-ray procedure or by FAA approved equivalent. Repair cracked members in accordance with Eastern Airlines Drawing No. 404-5098 or an equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region before further flight. (b) Wings which have been repaired in accordance with Eastern Airlines Drawing No. 404-5098 or equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region, shall be inspected as follows: (1) Inspect the wing rear spar lower cap flanges, inboard side of nacelle at Stations 133 to 135 on left and right wings, with 10-power glass and dye penetrant or by an acceptable X-ray procedure or by FAA approved equivalent. If 10-power glass and dye penetrant or FAA approved equivalent method is used, the Eastern Airlines P/N 304-5098-1 doubler or FAA approved equivalent located at wing Station 135 on the rear spar lower cap shall be removed. The repair of cracked member shall be approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, before further flight. (2) Inspect the wing rear spar doubler, Eastern Airlines P/N 304-5098-1 or FAA approved equivalent at Stations 133 to 135 for cracks. Inspect this doubler on left and right wings with a 10-power glass and dye penetrant or by an acceptable X-ray procedure or by FAA approved equivalent. (i) Replace doubler having cracks greater than 1/2 inch in length before further flight with a part of the same part number or an equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (ii) Inspect doublers having cracks less than 1/2 inch in length every 25 hours' time in service. When inspection reveals that the crack exceed 1/2 inch in length the part shall be replaced before further flight with a part of the same part number or an equivalent approved by Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (c) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator. This supersedes AD 59-20-03. This directive effective November 21, 1963. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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