AD 86-05-09

final rule

Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes

AD Number
86-05-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

Applicability

TypeManufacturerModelDetails
aircraft Maryland Air Industries, Inc. F-27 Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. F-27A Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. F-27B Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. F-27F Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. F-27G Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. F-27J Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. F-27M Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. FH-227 Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. FH-227B Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. FH-227C Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. FH-227D Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
aircraft Maryland Air Industries, Inc. FH-227E Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes

Unsafe Condition

Cracks in the FH227 and F27 main landing gear drag strut assemblies due to surface break-up in the bores of some tubes generated during the drawing process.

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

Required Actions

Inspect left and right upper main undercarriage drag stay for flaws using eddy current or ultrasonic inspection equipment following Dowty Rotol Service Bulletins 32-45N (FH227) or 32-81C (F27). Replace damaged parts before next flight if flaws are found.

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

Compliance Time

Within 400 hours time-in-service after April 13, 1986 for airplanes with ≥20,000 landings prior; within 800 hours time-in-service for those with 10,000-20,000 landings; and within 2,000 hours time-in-service for others. Adjustments possible upon FAA approval.

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

Affected Aircraft

Maryland Air Industries, Inc. Models F27 (all variants) and FH227 series airplanes certificated in any category.

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

Federal Register Abstract

Upper Main Undercarriage Drag Stay

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_86-05-09.html
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AD Number:
86-05-09
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
Subject:
Upper Main Undercarriage Drag Stay
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/13/1986
Make:
Maryland Air Industries, Inc.
Model:
F-27 | F-27A | F-27B | F-27F | F-27G | F-27J | F-27M | FH-227 | FH-227B | FH-227C | FH-227D | FH-227E
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: 86-05-09
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5252

AD NUMBER:   86-05-09

SUBJECT HEADING:   Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective April 13, 1986.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
86-05-09 FAIRCHILD: Amendment 39-5252. Applies to all Model F27 and FH227 series airplanes certificated in any category. Compliance required as indicated.

To detect cracks in the FH227 and F27 main landing gear drag strut assemblies due to the bores of some tubes having surface break-up generated during the drawing process, accomplish the following, unless previously accomplished:

A. For airplanes which have accumulated 20,000 landings or more prior to the effective date of this AD, within 400 hours time-in-service after the effective date of this AD, using eddy current or ultrasonic inspection equipment and procedures, inspect the left and right upper main undercarriage drag stay for flaws, in accordance with the Accomplishment Instructions and sketches outlined in Dowty Rotol Service Bulletin 32-45N (for Model FH227 airplanes) or Service Bulletin 32-81C (for Model F27 airplanes), dated October 16, 1981.

B. For airplanes which have accumulated more than 10,000 landings but less than 20,000 landings prior to the effective date of this AD, within 800 hours time-in-service after the effective date of this AD, using eddy current or ultrasonic inspection equipment and procedures, inspect the left and right upper main undercarriage drag stay for flaws in accordance with the Accomplishment Instructions and sketches outlined in Dowty Rotol Service Bulletin 32-45N (for Model FH227 airplanes) or Service Bulletin 32-81C (for Model F27 airplanes), dated October 16, 1981.

C. Within 2,000 hours time-in-service after the effective date of this AD, visually inspect the left and right upper main undercarriage stay in accordance with Dowty Rotol Service Bulletin 32-45N (for Model FH227 airplanes) or Service Bulletin 32-81C (for Model F27 airplanes), Item 2B(1)(2)(3)(4), dated October 16, 1981.

D. If, as a result of the inspections referred to in paragraphs A. and B., above, flaws are detected, replace damaged part with a serviceable part prior to next flight.

E. Upon the request of an operator, an FAA Maintenance Inspector, subject to prior approval by the Manager, New York Aircraft Certification Office, FAA, New England Region, may adjust the inspection times specified in this AD to permit compliance at an established inspection period of that operator if the request contains substantiating data to justify the change for that operator.

F. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the inspection requirements of this AD.

G. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, New York Aircraft Certification Office, FAA, New England Region.

All persons affected by this proposal who have not already received these documents from the manufacturer may obtain copies upon request to Fairchild Industries, Inc., Fairchild Republic Division, Hagerstown, Maryland 21740. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the FAA, New England Region, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York.

This amendment becomes effective April 13, 1986.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_86-05-09.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
86-05-09
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes
Subject:
Upper Main Undercarriage Drag Stay
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/13/1986
Make:
Maryland Air Industries, Inc.
Model:
F-27 | F-27A | F-27B | F-27F | F-27G | F-27J | F-27M | FH-227 | FH-227B | FH-227C | FH-227D | FH-227E
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: 86-05-09
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5252

AD NUMBER:   86-05-09

SUBJECT HEADING:   Airworthiness Directives; Fairchild Model F27 and FH227 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective April 13, 1986.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
86-05-09 FAIRCHILD: Amendment 39-5252. Applies to all Model F27 and FH227 series airplanes certificated in any category. Compliance required as indicated.

To detect cracks in the FH227 and F27 main landing gear drag strut assemblies due to the bores of some tubes having surface break-up generated during the drawing process, accomplish the following, unless previously accomplished:

A. For airplanes which have accumulated 20,000 landings or more prior to the effective date of this AD, within 400 hours time-in-service after the effective date of this AD, using eddy current or ultrasonic inspection equipment and procedures, inspect the left and right upper main undercarriage drag stay for flaws, in accordance with the Accomplishment Instructions and sketches outlined in Dowty Rotol Service Bulletin 32-45N (for Model FH227 airplanes) or Service Bulletin 32-81C (for Model F27 airplanes), dated October 16, 1981.

B. For airplanes which have accumulated more than 10,000 landings but less than 20,000 landings prior to the effective date of this AD, within 800 hours time-in-service after the effective date of this AD, using eddy current or ultrasonic inspection equipment and procedures, inspect the left and right upper main undercarriage drag stay for flaws in accordance with the Accomplishment Instructions and sketches outlined in Dowty Rotol Service Bulletin 32-45N (for Model FH227 airplanes) or Service Bulletin 32-81C (for Model F27 airplanes), dated October 16, 1981.

C. Within 2,000 hours time-in-service after the effective date of this AD, visually inspect the left and right upper main undercarriage stay in accordance with Dowty Rotol Service Bulletin 32-45N (for Model FH227 airplanes) or Service Bulletin 32-81C (for Model F27 airplanes), Item 2B(1)(2)(3)(4), dated October 16, 1981.

D. If, as a result of the inspections referred to in paragraphs A. and B., above, flaws are detected, replace damaged part with a serviceable part prior to next flight.

E. Upon the request of an operator, an FAA Maintenance Inspector, subject to prior approval by the Manager, New York Aircraft Certification Office, FAA, New England Region, may adjust the inspection times specified in this AD to permit compliance at an established inspection period of that operator if the request contains substantiating data to justify the change for that operator.

F. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the inspection requirements of this AD.

G. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, New York Aircraft Certification Office, FAA, New England Region.

All persons affected by this proposal who have not already received these documents from the manufacturer may obtain copies upon request to Fairchild Industries, Inc., Fairchild Republic Division, Hagerstown, Maryland 21740. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the FAA, New England Region, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York.

This amendment becomes effective April 13, 1986.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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