AD 89-23-18

final rule

Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes

AD Number
89-23-18
Status
final_rule
Effective Date
Product Category
aircraft
Docket
89-NM-65-AD
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Saab AB, Saab Aerosystems 340A (SAAB SF340A) Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes

Unsafe Condition

Failure of the emergency lighting circuit system could result in inoperative emergency lighting during an emergency situation.

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

Required Actions

Modify the emergency lighting activation circuit in accordance with SAAB Service Bulletin SF340-33-028, Revision 1, within 60 days after the effective date of this AD. Alternate means of compliance or adjustment may be approved by the Manager, Standardization Branch, ANM-113.

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

Compliance Time

Within 60 days after the effective date of this AD

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

Affected Aircraft

Saab AB, Saab Aerosystems Model SF-340A series airplanes, Serial Numbers -004 through -159

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

Federal Register Abstract

Emergency Lighting Circuit System

Applicability Source Text

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AD Number:
89-23-18
Document Type:
AD Final Rules
Docket Number:
89-NM-65-AD
Subject Heading:
Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes
Subject:
Emergency Lighting Circuit System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/12/1989
Make:
Saab AB, Saab Aerosystems
Model:
340A (SAAB SF340A)
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Superseded AD: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Superseded By: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: 89-23-18
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   89-NM-65-AD

AMENDMENT:   39-6390

AD NUMBER:   89-23-18

SUBJECT HEADING:   Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective December 12, 1989.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   89-23-18 SAAB-SCANIA: Amendment 39-6390. Docket No. 89-NM-65-AD.
Applicability: Model SF-340A series airplanes, Serial Numbers -004 through -159, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To ensure the operation of the emergency lighting system when required during an emergency situation, accomplish the following:

A. Within 60 days after the effective date of this AD, modify the emergency lighting activation circuit in accordance with SAAB Service Bulletin, SF340-33-028, Revision 1, dated January 26, 1989.

B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment, and then send it to the Manager, Standardization Branch, ANM-113.

C. 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 requirements of this AD.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to SAAB-Scania Aircraft Division, Product Support, S-581 88 Linkoping, Sweden. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or the Standardization Branch, 9010 East Marginal Way South, Seattle, Washington.

This amendment (39-6390, AD 89-23-18) becomes effective on December 12, 1989.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_89-23-18.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
89-23-18
Document Type:
AD Final Rules
Docket Number:
89-NM-65-AD
Subject Heading:
Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes
Subject:
Emergency Lighting Circuit System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/12/1989
Make:
Saab AB, Saab Aerosystems
Model:
340A (SAAB SF340A)
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: 89-23-18
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   89-NM-65-AD

AMENDMENT:   39-6390

AD NUMBER:   89-23-18

SUBJECT HEADING:   Airworthiness Directives; SAAB-SCANIA Model SF-340A Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective December 12, 1989.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   89-23-18 SAAB-SCANIA: Amendment 39-6390. Docket No. 89-NM-65-AD.
Applicability: Model SF-340A series airplanes, Serial Numbers -004 through -159, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To ensure the operation of the emergency lighting system when required during an emergency situation, accomplish the following:

A. Within 60 days after the effective date of this AD, modify the emergency lighting activation circuit in accordance with SAAB Service Bulletin, SF340-33-028, Revision 1, dated January 26, 1989.

B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment, and then send it to the Manager, Standardization Branch, ANM-113.

C. 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 requirements of this AD.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to SAAB-Scania Aircraft Division, Product Support, S-581 88 Linkoping, Sweden. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or the Standardization Branch, 9010 East Marginal Way South, Seattle, Washington.

This amendment (39-6390, AD 89-23-18) becomes effective on December 12, 1989.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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