AD 65-26-03

final rule

Airworthiness Directives; Lear Jet Model 23 Airplanes.

AD Number
65-26-03
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Learjet Inc. 23 Airworthiness Directives; Lear Jet Model 23 Airplanes.

Unsafe Condition

Improper ducting in the baggage compartment could lead to smoke accumulation in the cabin.

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

Required Actions

Remove interior side panels, inspect the one-inch diameter flexible duct to ensure it is high temperature silicone type (reddish color), and replace black ducts with specified parts (P/N 2319148-017 for serial 004-034, P/N 2319148-022 for serial 035 and higher).

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

Compliance Time

before further flight

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

Affected Aircraft

Learjet Inc. Model 23 airplanes with serial numbers 004 through 034 and 035 and higher.

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

Federal Register Abstract

Baggage Compartment

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_65-26-03.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
65-26-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Lear Jet Model 23 Airplanes.
Subject:
Baggage Compartment
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Learjet Inc.
Model:
23
Product Type:
Aircraft
Product Subtype:
Small 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Superseded AD: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Superseded By: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: 65-26-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-160

AD NUMBER:   65-26-03

SUBJECT HEADING:   Airworthiness Directives; Lear Jet Model 23 Airplanes.

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
65-26-03 LEARJET: Amdt. 39-160 Part 39 Federal Register November 25, 1965. Applies to Model 23 Airplanes.

Compliance required before further flight, unless already accomplished.

To eliminate the possibility of smoke accumulation in the cabin due to improper ducting, accomplish the following:

(a) Remove necessary interior side panels on right side of baggage compartment near Fuselage Frame 22 (Station 271).

(b) Inspect the one-inch diameter flexible duct (Figure 90-11, Lear Parts Catalog) to ensure that it is the high temperature silicone type (reddish color).

(c) Replace any black duct with high temperature silicone type (reddish color) duct, P/N 2319148-017 (airplane Serial Numbers 004 through 034), or P/N 2319148-022 (airplane Serial Numbers 035 and higher), before further flight.

This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated November 18, 1965.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_65-26-03.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
65-26-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Lear Jet Model 23 Airplanes.
Subject:
Baggage Compartment
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Learjet Inc.
Model:
23
Product Type:
Aircraft
Product Subtype:
Small 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: 65-26-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-160

AD NUMBER:   65-26-03

SUBJECT HEADING:   Airworthiness Directives; Lear Jet Model 23 Airplanes.

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
65-26-03 LEARJET: Amdt. 39-160 Part 39 Federal Register November 25, 1965. Applies to Model 23 Airplanes.

Compliance required before further flight, unless already accomplished.

To eliminate the possibility of smoke accumulation in the cabin due to improper ducting, accomplish the following:

(a) Remove necessary interior side panels on right side of baggage compartment near Fuselage Frame 22 (Station 271).

(b) Inspect the one-inch diameter flexible duct (Figure 90-11, Lear Parts Catalog) to ensure that it is the high temperature silicone type (reddish color).

(c) Replace any black duct with high temperature silicone type (reddish color) duct, P/N 2319148-017 (airplane Serial Numbers 004 through 034), or P/N 2319148-022 (airplane Serial Numbers 035 and higher), before further flight.

This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated November 18, 1965.

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.