AD 48-45-01

final rule

Airworthiness Directives; Fairchild Model M-62 Series Aircraft

AD Number
48-45-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure

Applicability

TypeManufacturerModelDetails
aircraft Fairchild Hiller Corporation M-62A Airworthiness Directives; Fairchild Model M-62 Series Aircraft
aircraft Fairchild Hiller Corporation M-62A-3 Airworthiness Directives; Fairchild Model M-62 Series Aircraft
aircraft Fairchild Hiller Corporation M-62A-4 Airworthiness Directives; Fairchild Model M-62 Series Aircraft
aircraft Fairchild Hiller Corporation M-62B Airworthiness Directives; Fairchild Model M-62 Series Aircraft
aircraft Fairchild Hiller Corporation M-62C Airworthiness Directives; Fairchild Model M-62 Series Aircraft

Unsafe Condition

Separation of plywood butt plates from wing spar ends and rot in wing spar webs and caps, which could lead to structural failure of the wing spar.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect plywood butt plates for separation from wing spar ends and inspect spar ends for rot. Cut 16 1/2-inch diameter inspection holes in wing lower skin to inspect spars for rot and separation of plywood webs from caps. Install 1/4-inch drain holes in lower skin where missing or spaced too far apart, and clean dirt from drain holes. Repair or replace deteriorated parts and cover inspection holes with fabric patches. Install seaplane grommets at drain holes in areas splashed by water from landing wheels.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

at each annual inspection

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Fairchild Hiller Corporation Model M-62A, M-62A-3, M-62A-4, M-62B, M-62C aircraft

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Wing Spar Inspection

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_48-45-01.html
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AD Number:
48-45-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Fairchild Model M-62 Series Aircraft
Subject:
Wing Spar Inspection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Fairchild Hiller Corporation
Model:
M-62A | M-62A-3 | M-62A-4 | M-62B | M-62C
Product Type:
Aircraft
Product Subtype:
Small 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: 48-45-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   48-45-01

SUBJECT HEADING:   Airworthiness Directives; Fairchild Model M-62 Series Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
48-45-01 FAIRCHILD: Applies to All M-62 Series Aircraft.

Compliance required at each annual inspection.

(1) Inspect plywood butt plates for separation from wing spar ends. Remove only if loose and inspect spar end for rot which requires repair or replacement. Separation of spar laminations does not require replacement if the glue joints between spar webs and caps are sound. Glue new butt plates to spar ends working glue into any cracks between laminations.

(2) Cut a total of sixteen 1/2-inch diameter inspection holes in wing lower skin. These should be centered at the front edges of both spars at four approximately equally spaced sparwise stations in each outer panel. Use caution to avoid cutting the spars and ribs. Inspect spars for rot and separation of the plywood webs from the caps. Deteriorated parts should be scrapped or repaired. Dope fabric patches over holes.

(3) Provides 1/4-inch drain holes in lower skin with centers not more than 1/4 inch from front face of spars and from outer edge of each rib wherever holes are missing or have greater spacing. Clean out all dirt built up above edges of holes to insure complete drainage. Install seaplane grommets at all drain holes in areas splashed by water from landing wheels.

This supersedes AD 48-07-04.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_48-45-01.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
48-45-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Fairchild Model M-62 Series Aircraft
Subject:
Wing Spar Inspection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Fairchild Hiller Corporation
Model:
M-62A | M-62A-3 | M-62A-4 | M-62B | M-62C
Product Type:
Aircraft
Product Subtype:
Small 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: 48-45-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   48-45-01

SUBJECT HEADING:   Airworthiness Directives; Fairchild Model M-62 Series Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
48-45-01 FAIRCHILD: Applies to All M-62 Series Aircraft.

Compliance required at each annual inspection.

(1) Inspect plywood butt plates for separation from wing spar ends. Remove only if loose and inspect spar end for rot which requires repair or replacement. Separation of spar laminations does not require replacement if the glue joints between spar webs and caps are sound. Glue new butt plates to spar ends working glue into any cracks between laminations.

(2) Cut a total of sixteen 1/2-inch diameter inspection holes in wing lower skin. These should be centered at the front edges of both spars at four approximately equally spaced sparwise stations in each outer panel. Use caution to avoid cutting the spars and ribs. Inspect spars for rot and separation of the plywood webs from the caps. Deteriorated parts should be scrapped or repaired. Dope fabric patches over holes.

(3) Provides 1/4-inch drain holes in lower skin with centers not more than 1/4 inch from front face of spars and from outer edge of each rib wherever holes are missing or have greater spacing. Clean out all dirt built up above edges of holes to insure complete drainage. Install seaplane grommets at all drain holes in areas splashed by water from landing wheels.

This supersedes AD 48-07-04.

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.