AD 48-42-02

final rule

LOCKHEED Model 18 Aircraft

AD Number
48-42-02
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Lockheed Aircraft Corporation 18 LOCKHEED Model 18 Aircraft

Unsafe Condition

Failure of fire detection and extinguishing systems, hydraulic reservoir oil tank guards, windshield alcohol tank guards, baggage compartment sealing, power plant lines and fittings, emergency oil shut-off valves, cabin heater ducts, firewall revisions, and anti-icing system provisions could lead to uncontrolled fires and loss of aircraft control.

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

Required Actions

Install fire detection and extinguishing systems, hydraulic reservoir oil tank guards, windshield alcohol tank guards, seal baggage compartments, replace power plant lines and fittings, install emergency oil shut-off valves, revise cabin heater ducts, firewall, and anti-icing systems per specified service bulletins. Inspect cabin interior fabrics and finishes for compliance with CAR 4b.

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

Compliance Time

not later than the date established in accordance with the provisions of special Civil Regulation Serial Number SR-329, or any subsequent regulation affecting this compliance date

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

Affected Aircraft

Lockheed Aircraft Corporation Model 18 aircraft operated in scheduled and non-scheduled air carrier passenger service.

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

Federal Register Abstract

Fire Prevention Modification

Applicability Source Text

Show captured applicability text from the source AD
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AD Number:
48-42-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
LOCKHEED Model 18 Aircraft
Subject:
Fire Prevention Modification
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Lockheed Aircraft Corporation
Model:
18
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Superseded AD: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Superseded By: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: 48-42-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   48-42-02

SUBJECT HEADING:   LOCKHEED Model 18 Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
48-42-02 LOCKHEED: Applies to All Model 18 Aircraft Operated in Scheduled and Non-scheduled Air Carrier Passenger Service.

To be accomplished not later than the date established in accordance with the provisions of special Civil Regulation Serial Number SR-329, or any subsequent regulation affecting this compliance date.

All Lockheed Model 18 aircraft mentioned above must be modified to comply with the fire prevention requirements as outlined in CAR Amendments 41-3, 42-2, and 61-2. Compliance with these requirements may be accomplished by completing the modifications outlined in the following listed Lockheed Service Bulletins. Other rework shown to be equivalent to that covered by the Service Bulletins will also be acceptable.

Item CAR 4	No.	Lockheed Service
Bulletin Title
1.	.3824	18/SB-122	Revision to Waste Paper Container.
		18/SB-123	Installation of No Smoking Placard.
2.
	.38250	18/SB-124	Installation of Fire Detection and Extinguishing System.
	.38251	18/SB-125	Installation of Hydraulic Reservoir Oil Tank Guard.
		18/SB-126	Installation of Windshield Alcohol Tank Guard.
		18/SB-127	Sealing of Baggage Compartment.
3.	.43	18/SB-135	Material Substitution-Propeller Feathering Reserve Oil Tank Support.
4.	.4700	18/SB-130	Firewall Revision.
5.	.49		
	.4900	18/SB-128	Replacement of Power Plant Lines and Fittings.
	.4901	18/SB-129	Installation of Emergency Oil Shut-Off Valves.
	.4902	18/SB-131	Revision to Cabin Heater Ducts.
	.4902	18/SB-133	Replacement of Firewall and Power Plant Lines & Fittings.
		18/SB-136	Installation of Dual Fuel System Fire Resistant Plumbing Provisions for Selective Shut-Off -Propeller.
		18/SB-141	Anti-Icing System (Airplanes having Standard Systems) Provisions for Selective Shut-Off - Propeller.
		18/SB-141A	Anti-Icing System (Airplanes with Tank & Pump in L.H. Nacelle).

In addition to the above, inspect cabin interior fabrics and finishes to determine that these materials or any substitutes or replacements for the materials originally installed comply with the applicable sections of CAR 4b. Safety Regulation Release 259 outlines acceptable procedures for complying with these particular requirements.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_48-42-02.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
48-42-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
LOCKHEED Model 18 Aircraft
Subject:
Fire Prevention Modification
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Lockheed Aircraft Corporation
Model:
18
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: 48-42-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   48-42-02

SUBJECT HEADING:   LOCKHEED Model 18 Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
48-42-02 LOCKHEED: Applies to All Model 18 Aircraft Operated in Scheduled and Non-scheduled Air Carrier Passenger Service.

To be accomplished not later than the date established in accordance with the provisions of special Civil Regulation Serial Number SR-329, or any subsequent regulation affecting this compliance date.

All Lockheed Model 18 aircraft mentioned above must be modified to comply with the fire prevention requirements as outlined in CAR Amendments 41-3, 42-2, and 61-2. Compliance with these requirements may be accomplished by completing the modifications outlined in the following listed Lockheed Service Bulletins. Other rework shown to be equivalent to that covered by the Service Bulletins will also be acceptable.

Item CAR 4	No.	Lockheed Service
Bulletin Title
1.	.3824	18/SB-122	Revision to Waste Paper Container.
		18/SB-123	Installation of No Smoking Placard.
2.
	.38250	18/SB-124	Installation of Fire Detection and Extinguishing System.
	.38251	18/SB-125	Installation of Hydraulic Reservoir Oil Tank Guard.
		18/SB-126	Installation of Windshield Alcohol Tank Guard.
		18/SB-127	Sealing of Baggage Compartment.
3.	.43	18/SB-135	Material Substitution-Propeller Feathering Reserve Oil Tank Support.
4.	.4700	18/SB-130	Firewall Revision.
5.	.49		
	.4900	18/SB-128	Replacement of Power Plant Lines and Fittings.
	.4901	18/SB-129	Installation of Emergency Oil Shut-Off Valves.
	.4902	18/SB-131	Revision to Cabin Heater Ducts.
	.4902	18/SB-133	Replacement of Firewall and Power Plant Lines & Fittings.
		18/SB-136	Installation of Dual Fuel System Fire Resistant Plumbing Provisions for Selective Shut-Off -Propeller.
		18/SB-141	Anti-Icing System (Airplanes having Standard Systems) Provisions for Selective Shut-Off - Propeller.
		18/SB-141A	Anti-Icing System (Airplanes with Tank & Pump in L.H. Nacelle).

In addition to the above, inspect cabin interior fabrics and finishes to determine that these materials or any substitutes or replacements for the materials originally installed comply with the applicable sections of CAR 4b. Safety Regulation Release 259 outlines acceptable procedures for complying with these particular requirements.

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.