AD 85-05-51 R2

final rule

Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes

AD Number
85-05-51 R2
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft fuel pump, filter, valve, and lines
Problem area Fuel system

Applicability

TypeManufacturerModelDetails
aircraft BAE Systems (Operations) Limited BAe 146-100A Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes
aircraft BAE Systems (Operations) Limited BAe 146-200A Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes
aircraft BAE Systems (Operations) Limited BAe 146-300A Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes

Unsafe Condition

Fuel leaks into the passenger cabin and potential fire due to unmodified center fuel tank systems prior to Modification HCM00650A.

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

Required Actions

Drain center fuel tank before further flight, incorporate 'DO NOT DISPATCH WITH FUEL IN THE CENTER TANK' into the airplane flight manual, and modify the airplane within 48 hours using BAe 146 Alert Service Bulletin 28-A3 Revision 2. Alternate means of compliance may be approved.

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

Compliance Time

before further flight after the effective date of this airworthiness directive (AD)

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

Affected Aircraft

BAE Systems (Operations) Limited Model BAe 146-100A, BAe 146-200A, BAe 146-300A airplanes with Modification HCM00650A not accomplished.

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

Federal Register Abstract

Fuel Leak Detection

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_85-05-51_R.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
85-05-51 R2
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes
Subject:
Fuel Leak Detection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
06/24/1985
Make:
BAE Systems (Operations) Limited
Model:
BAe 146-100A | BAe 146-200A | BAe 146-300A
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: 85-05-51 R2
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5077

AD NUMBER:   85-05-51 R2

SUBJECT HEADING:   Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective June 24, 1985.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   85-05-51 R2 BRITISH AEROSPACE: Amendment 39-5077. Applies to Model BAe 146 airplanes certificated in all categories on which Modification HCM00650A has not been accomplished. Compliance is required before further flight after the effective date of this airworthiness directive (AD). To prevent fuel leaks into the passenger cabin and prevent potential fire, accomplish the following unless previously accomplished:

A. Before further flight:

1. Drain center fuel tank, and
2. Incorporate the following information into the airplane flight manual and provide to flight crews: DO NOT DISPATCH WITH FUEL IN THE CENTER TANK.

B. Within 48 hours after the effective date of this AD, modify the airplane in accordance with BAe 146 Alert Service Bulletin 28-A3 Revision 2, dated March 25, 1985, paragraph 2A.

C. Incorporation of British Aerospace Modification HCM00650A terminates the requirement to comply with paragraphs A. and B., above, of this directive.

D. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

NOTE: Compliance with paragraph A.2. of this directive may be effected by including a copy of the AD in the airplane flight manual and operating manual.

All persons affected by this proposal who have not already received these documents from the manufacturer may obtain copies upon request to British Aerospace, Librarian for Service Bulletins, Box 17414, Dulles International Airport, Washington, D.C. 20041. These documents also may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or 9010 East Marginal Way South, Seattle, Washington.

This Amendment 39-5077 becomes effective June 24, 1985. It was effective earlier to all recipients of telegraphic AD T85-05-51 issued March 15, 1985, and T85-05-51 R1, issued March 22, 1985, which contained this amendment.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_85-05-51_R.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
85-05-51 R2
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes
Subject:
Fuel Leak Detection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
06/24/1985
Make:
BAE Systems (Operations) Limited
Model:
BAe 146-100A | BAe 146-200A | BAe 146-300A
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: 85-05-51 R2
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5077

AD NUMBER:   85-05-51 R2

SUBJECT HEADING:   Airworthiness Directives; BRITISH AEROSPACE Model BAe 146 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective June 24, 1985.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   85-05-51 R2 BRITISH AEROSPACE: Amendment 39-5077. Applies to Model BAe 146 airplanes certificated in all categories on which Modification HCM00650A has not been accomplished. Compliance is required before further flight after the effective date of this airworthiness directive (AD). To prevent fuel leaks into the passenger cabin and prevent potential fire, accomplish the following unless previously accomplished:

A. Before further flight:

1. Drain center fuel tank, and
2. Incorporate the following information into the airplane flight manual and provide to flight crews: DO NOT DISPATCH WITH FUEL IN THE CENTER TANK.

B. Within 48 hours after the effective date of this AD, modify the airplane in accordance with BAe 146 Alert Service Bulletin 28-A3 Revision 2, dated March 25, 1985, paragraph 2A.

C. Incorporation of British Aerospace Modification HCM00650A terminates the requirement to comply with paragraphs A. and B., above, of this directive.

D. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

NOTE: Compliance with paragraph A.2. of this directive may be effected by including a copy of the AD in the airplane flight manual and operating manual.

All persons affected by this proposal who have not already received these documents from the manufacturer may obtain copies upon request to British Aerospace, Librarian for Service Bulletins, Box 17414, Dulles International Airport, Washington, D.C. 20041. These documents also may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or 9010 East Marginal Way South, Seattle, Washington.

This Amendment 39-5077 becomes effective June 24, 1985. It was effective earlier to all recipients of telegraphic AD T85-05-51 issued March 15, 1985, and T85-05-51 R1, issued March 22, 1985, which contained this amendment.

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.