AD 56-18-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | P. V. Shields | A-26B (Army) | Airworthiness Directives; DOUGLAS All Models A-26B and A-26C Aircraft |
| aircraft | P. V. Shields | A-26C (Army) | Airworthiness Directives; DOUGLAS All Models A-26B and A-26C Aircraft |
Unsafe Condition
Cracks in the nose gear cross beam assembly at the inboard end of the trunnion journal.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the nose wheel cross beam assembly (P/N 5280335, 5280336, 5123942, or 5123943), inspect the 5-inch outboard portion of the beam and trunnion assembly using magnetic particle, dye penetrant, or x-ray inspection equipment for cracks, and replace any cracked assemblies.
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Compliance Time
prior to September 5, 1956, and each periodic inspection thereafter
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Affected Aircraft
DOUGLAS All Models A-26B and A-26C Aircraft with nose wheel cross beam assemblies P/N 5280335, 5280336, 5123942, or 5123943
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Federal Register Abstract
Nose Wheel Cross Beam Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_56-18-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-18-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DOUGLAS All Models A-26B and A-26C Aircraft Subject: Nose Wheel Cross Beam Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: P. V. Shields Model: A-26B (Army) | A-26C (Army) Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 56-18-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-18-03 SUBJECT HEADING: Airworthiness Directives; DOUGLAS All Models A-26B and A-26C Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-18-03 DOUGLAS: Applies to All Models A-26B and A-26C Aircraft. Compliance required prior to September 5, 1956, and each periodic inspection thereafter. Numerous cases have been discovered of cracks in the nose gear cross beam assembly of certificated A-26 aircraft, developing at the inboard end of the trunnion journal. Accordingly, to reduce the possibility of failure of the wheel cross beam assemblies, the following inspection is required. (a) Remove the nose wheel cross beam assembly, P/N 5280335, or 5280336, or 5123942 or 5123943. (b) Using magnetic particle, dye penetrant or x-ray inspection equipment, inspect the 5-inch outboard portion of the beam and trunnion assembly for cracks, measuring from the trunnion journal inboard and paying particular attention to the area around the trunnion's shoulder and inboard of the welded area of the strap. (c) Cross beam assemblies found cracked during this inspection must be replaced. (USAF Technical Order 1B-26-519, dated April 9, 1956, covers this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_56-18-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-18-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DOUGLAS All Models A-26B and A-26C Aircraft Subject: Nose Wheel Cross Beam Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: P. V. Shields Model: A-26B (Army) | A-26C (Army) 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: 56-18-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-18-03 SUBJECT HEADING: Airworthiness Directives; DOUGLAS All Models A-26B and A-26C Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-18-03 DOUGLAS: Applies to All Models A-26B and A-26C Aircraft. Compliance required prior to September 5, 1956, and each periodic inspection thereafter. Numerous cases have been discovered of cracks in the nose gear cross beam assembly of certificated A-26 aircraft, developing at the inboard end of the trunnion journal. Accordingly, to reduce the possibility of failure of the wheel cross beam assemblies, the following inspection is required. (a) Remove the nose wheel cross beam assembly, P/N 5280335, or 5280336, or 5123942 or 5123943. (b) Using magnetic particle, dye penetrant or x-ray inspection equipment, inspect the 5-inch outboard portion of the beam and trunnion assembly for cracks, measuring from the trunnion journal inboard and paying particular attention to the area around the trunnion's shoulder and inboard of the welded area of the strap. (c) Cross beam assemblies found cracked during this inspection must be replaced. (USAF Technical Order 1B-26-519, dated April 9, 1956, covers this same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
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