AD 85-01-05

final rule

Airworthiness Directives; BRITISH AEROSPACE Model 125 800A Series Airplanes

AD Number
85-01-05
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Textron Aviation Inc. BAe.125 Series 800A Airworthiness Directives; BRITISH AEROSPACE Model 125 800A Series Airplanes

Unsafe Condition

Improper wiring in the engine fire protection system could result in the wrong fire bottle operating, leading to lack of engine fire protection.

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

Required Actions

Inspect and rewire, if necessary, the electrical circuits of the engines' fire protection system in accordance with British Aerospace 125 Service Bulletin 26-A25(253028). Special flight permits may be issued to operate airplanes to a base for accomplishing inspections. Alternate actions approved by the Manager, Seattle Aircraft Certification Office may be used.

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

Compliance Time

Within ten (10) 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

British Aerospace Model 125 800A series airplanes with manufacturer serial numbers 258003 through 258020

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

Federal Register Abstract

Engine Fire Protection System Inspection

Applicability Source Text

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AD Number:
85-01-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BRITISH AEROSPACE Model 125 800A Series Airplanes
Subject:
Engine Fire Protection System Inspection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/13/1985
Make:
Textron Aviation Inc.
Model:
BAe.125 Series 800A
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Superseded AD: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Superseded By: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: 85-01-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5047

AD NUMBER:   85-01-05

SUBJECT HEADING:   Airworthiness Directives; BRITISH AEROSPACE Model 125 800A Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective May 13, 1985.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   85-01-05 BRITISH AEROSPACE: Amendment 39-5047. Applies to Model 125 800A series airplanes with manufacturer serial numbers 258003 through 258020, certificated in all categories. To detect the lack of engine fire protection caused by improper wiring which would result in the wrong fire bottle operating, accomplish the following, unless previously accomplished:

(A). Within ten (10) hours time in service after the effective date of this AD, inspect and rewire, if necessary, the electrical circuits of the engines' fire protection system, in accordance with the accomplishment instructions of British Aerospace 125 Service Bulletin 26-A25(253028), dated December 20, 1984.

(B). Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections required by this AD.

(C). Alternate inspections, modifications, or other actions which provide an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

All persons affected by this directive who have not already received these documents from their manufacturer may obtain copies upon request to British Aerospace, Inc., Librarian, Box 12414, Dulles International Airport, Washington, D.C. 20041.

This amendment becomes effective May 13, 1985, and was effective earlier to those recipients of AD 85-01-05 dated January 15, 1985, distributed by priority letter.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_85-01-05.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
85-01-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BRITISH AEROSPACE Model 125 800A Series Airplanes
Subject:
Engine Fire Protection System Inspection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/13/1985
Make:
Textron Aviation Inc.
Model:
BAe.125 Series 800A
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: 85-01-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5047

AD NUMBER:   85-01-05

SUBJECT HEADING:   Airworthiness Directives; BRITISH AEROSPACE Model 125 800A Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective May 13, 1985.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   85-01-05 BRITISH AEROSPACE: Amendment 39-5047. Applies to Model 125 800A series airplanes with manufacturer serial numbers 258003 through 258020, certificated in all categories. To detect the lack of engine fire protection caused by improper wiring which would result in the wrong fire bottle operating, accomplish the following, unless previously accomplished:

(A). Within ten (10) hours time in service after the effective date of this AD, inspect and rewire, if necessary, the electrical circuits of the engines' fire protection system, in accordance with the accomplishment instructions of British Aerospace 125 Service Bulletin 26-A25(253028), dated December 20, 1984.

(B). Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections required by this AD.

(C). Alternate inspections, modifications, or other actions which provide an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

All persons affected by this directive who have not already received these documents from their manufacturer may obtain copies upon request to British Aerospace, Inc., Librarian, Box 12414, Dulles International Airport, Washington, D.C. 20041.

This amendment becomes effective May 13, 1985, and was effective earlier to those recipients of AD 85-01-05 dated January 15, 1985, distributed by priority letter.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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