AD 93-01-25

final rule

Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes

AD Number
93-01-25
Status
final_rule
Effective Date
Product Category
aircraft
Docket
92-NM-243-AD
FR Citation
This information is not available.
Technical illustration of an aircraft turbine engine assembly
Problem area Engine

Applicability

TypeManufacturerModelDetails
aircraft Airbus A320-111 Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
aircraft Airbus A320-211 Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
aircraft Airbus A320-212 Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
aircraft Airbus A320-214 Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
aircraft Airbus A320-231 Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
aircraft Airbus A320-232 Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
aircraft Airbus A320-233 Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes

Unsafe Condition

Fuel leakage onto the engine and potential for an engine fire due to improper torque on the fuel return line connection at rib 9 and inadequate sealant in pylon zone 'A'.

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

Required Actions

Perform a torque check of the fuel return line connection at rib 9 within 500 hours time-in-service after the effective date. If red witness marks are misaligned, tighten to 478-522 inch-pounds and remark. Conduct a leak check of pylon zone 'A' sealant within the same timeframe; replace sealant if leaks or water level drop is detected.

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

Compliance Time

Within 500 hours time-in-service after the effective date of this AD

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

Affected Aircraft

AIRBUS INDUSTRIE Model A320 series airplanes, manufacturer's serial numbers 002 through 180, inclusive; 183 through 194, inclusive; 196 through 315, inclusive; 317 through 321, inclusive; 323 through 325, inclusive; and 328 through 334, inclusive; certificated in any category.

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

Federal Register Abstract

Fuel Return Line Leakage

Applicability Source Text

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AD Number:
93-01-25
Document Type:
AD Final Rules
Docket Number:
92-NM-243-AD
Subject Heading:
Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
Subject:
Fuel Return Line Leakage
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/10/1993
Make:
Airbus
Model:
A320-111 | A320-211 | A320-212 | A320-214 | A320-231 | A320-232 | A320-233
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: 93-01-25
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   92-NM-243-AD

AMENDMENT:   39-8479

AD NUMBER:   93-01-25

SUBJECT HEADING:   Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 10, 1993.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
93-01-25 AIRBUS INDUSTRIE: Amendment 39-8479. Docket 92-NM-243-AD.

Applicability: Model A320 series airplanes, manufacturer's serial numbers 002 through 180, inclusive; 183 through 194, inclusive; 196 through 315, inclusive; 317 through 321, inclusive; 323 through 325, inclusive; and 328 through 334, inclusive; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent fuel leakage onto the engine and the potential for an engine fire, accomplish the following:

(a) Within 500 hours time-in-service after the effective date of this AD, perform a torque check of the connection on the fuel return line at rib 9 in accordance with Airbus Industrie All Operator Telex (AOT) 28-04, Revision 1, dated September 9, 1992.

(1) If the red witness marks are incorrectly aligned, prior to further flight, accomplish paragraphs (a)(1)(i) and (a)(1)(ii) of this AD in accordance with the AOT.
(i) Tighten the connection to torque values between 478 and 522 inch-pounds.
(ii) Remove the existing witness marks and remark with an indelible marker pen.
(2) If the red witness marks are correctly aligned, this AD does not require retorquing or remarking.

(b) Within 500 hours time-in-service after the effective date of this AD, perform a leak check of the sealant in pylon zone "A", in accordance with All Operator Telex (AOT) 28-04, Revision 1, dated September 9, 1992.
(1) If any leak is found or if the water level drops while conducting the leak check, prior to further flight, replace the sealant in accordance with the AOT.
(2) If no leak is found and if the water level does not drop while conducting the leak check, this AD does not require replacement of the sealant.

(c) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch.

(d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(e) The checks, torquing, marking, and replacement shall be done in accordance with Airbus Industrie All Operator Telex 28-04, Revision 1, dated September 9, 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Airbus Industrie, Airbus Support Division, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

(f) This amendment becomes effective on February 10, 1993.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_93-01-25.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
93-01-25
Document Type:
AD Final Rules
Docket Number:
92-NM-243-AD
Subject Heading:
Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes
Subject:
Fuel Return Line Leakage
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/10/1993
Make:
Airbus
Model:
A320-111 | A320-211 | A320-212 | A320-214 | A320-231 | A320-232 | A320-233
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: 93-01-25
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   92-NM-243-AD

AMENDMENT:   39-8479

AD NUMBER:   93-01-25

SUBJECT HEADING:   Airworthiness Directives; AIRBUS INDUSTRIE Model A320 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 10, 1993.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
93-01-25 AIRBUS INDUSTRIE: Amendment 39-8479. Docket 92-NM-243-AD.

Applicability: Model A320 series airplanes, manufacturer's serial numbers 002 through 180, inclusive; 183 through 194, inclusive; 196 through 315, inclusive; 317 through 321, inclusive; 323 through 325, inclusive; and 328 through 334, inclusive; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent fuel leakage onto the engine and the potential for an engine fire, accomplish the following:

(a) Within 500 hours time-in-service after the effective date of this AD, perform a torque check of the connection on the fuel return line at rib 9 in accordance with Airbus Industrie All Operator Telex (AOT) 28-04, Revision 1, dated September 9, 1992.

(1) If the red witness marks are incorrectly aligned, prior to further flight, accomplish paragraphs (a)(1)(i) and (a)(1)(ii) of this AD in accordance with the AOT.
(i) Tighten the connection to torque values between 478 and 522 inch-pounds.
(ii) Remove the existing witness marks and remark with an indelible marker pen.
(2) If the red witness marks are correctly aligned, this AD does not require retorquing or remarking.

(b) Within 500 hours time-in-service after the effective date of this AD, perform a leak check of the sealant in pylon zone "A", in accordance with All Operator Telex (AOT) 28-04, Revision 1, dated September 9, 1992.
(1) If any leak is found or if the water level drops while conducting the leak check, prior to further flight, replace the sealant in accordance with the AOT.
(2) If no leak is found and if the water level does not drop while conducting the leak check, this AD does not require replacement of the sealant.

(c) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch.

(d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(e) The checks, torquing, marking, and replacement shall be done in accordance with Airbus Industrie All Operator Telex 28-04, Revision 1, dated September 9, 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Airbus Industrie, Airbus Support Division, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

(f) This amendment becomes effective on February 10, 1993.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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