AD 82-16-12

final rule

Airworthiness Directives; BELL Model 206 Helicopters

AD Number
82-16-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft turbine engine assembly
Problem area Engine

Applicability

TypeManufacturerModelDetails
aircraft Bell Helicopter Textron Canada Limited 206 Airworthiness Directives; BELL Model 206 Helicopters

Unsafe Condition

Failure of the auxiliary fuel transfer pump could result in a decrease in usable auxiliary fuel, leading to potential fuel starvation and subsequent engine failure.

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

Required Actions

Install a placard limiting usable auxiliary fuel to half the auxiliary tanks' capacity within 30 days after the effective date. Within 300 hours time-in-service or 6 months from the effective date, install the C-22-FM Flow Monitoring Kit. Incorporate the revised Flight Manual Supplement into the Rotorcraft Flight Manual.

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

Compliance Time

Within 30 days after the effective date of this AD for the placard installation and within 300 hours time-in-service or 6 months from the effective date, whichever occurs first, for the C-22-FM Flow Monitoring Kit installation.

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

Affected Aircraft

Bell Helicopter Textron Canada Limited Model 206 helicopters with Chadwick C-22 Auxiliary Fuel System installed per Supplemental Type Certificate SH139WE.

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

Federal Register Abstract

Chadwick C-22 Auxiliary Fuel System

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_82-16-12.html
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Details
AD Number:
82-16-12
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BELL Model 206 Helicopters
Subject:
Chadwick C-22 Auxiliary Fuel System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
09/01/1982
Make:
Bell Helicopter Textron Canada Limited
Model:
206
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 82-16-12
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4431

AD NUMBER:   82-16-12

SUBJECT HEADING:   Airworthiness Directives; BELL Model 206 Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective September 1, 1982.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
82-16-12 BELL: Amendment 39-4431. Applies to Bell Model 206 helicopters with Chadwick C-22 Auxiliary Fuel System installed per Supplemental Type Certificate SH139WE.

Compliance is required as indicated.

To provide early warning of auxiliary fuel transfer pump malfunction and the associated decrease in usable auxiliary fuel, accomplish the following, unless already accomplished:

1. Within 30 days after the effective date of this AD, install a placard, in accordance with Chadwick Service Bulletin 20-81-01 dated October 6, 1981, or FAA approved equivalent limiting usable auxiliary fuel to half the amount in the auxiliary tanks at takeoff.

2. Within 300 hours time-in-service or 6 months from the effective date of this AD, whichever occurs first, install the C-22-FM Flow Monitoring Kit in accordance with Chadwick Service Bulletin 20-81-01 dated October 6, 1981, or FAA approved equivalent. The placard installed per item 1 above may be removed, provided the revised Flight Manual Supplement, Chadwick Auxiliary Fuel System C-22, dated October 21, 1981, is incorporated in the Rotorcraft Flight Manual.

3. Alternate modifications or other actions which provide an equivalent level of safety may be used when approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Mountain Region.

4. Special flight permits may be issued in accordance with Federal Aviation Regulation Part 21, Sections 21.197 and 21.199 to operate each helicopter to a base for the accomplishment of the modification required by this AD.

This amendment becomes effective September 1, 1982.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_82-16-12.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
82-16-12
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BELL Model 206 Helicopters
Subject:
Chadwick C-22 Auxiliary Fuel System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
09/01/1982
Make:
Bell Helicopter Textron Canada Limited
Model:
206
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 82-16-12
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4431

AD NUMBER:   82-16-12

SUBJECT HEADING:   Airworthiness Directives; BELL Model 206 Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective September 1, 1982.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
82-16-12 BELL: Amendment 39-4431. Applies to Bell Model 206 helicopters with Chadwick C-22 Auxiliary Fuel System installed per Supplemental Type Certificate SH139WE.

Compliance is required as indicated.

To provide early warning of auxiliary fuel transfer pump malfunction and the associated decrease in usable auxiliary fuel, accomplish the following, unless already accomplished:

1. Within 30 days after the effective date of this AD, install a placard, in accordance with Chadwick Service Bulletin 20-81-01 dated October 6, 1981, or FAA approved equivalent limiting usable auxiliary fuel to half the amount in the auxiliary tanks at takeoff.

2. Within 300 hours time-in-service or 6 months from the effective date of this AD, whichever occurs first, install the C-22-FM Flow Monitoring Kit in accordance with Chadwick Service Bulletin 20-81-01 dated October 6, 1981, or FAA approved equivalent. The placard installed per item 1 above may be removed, provided the revised Flight Manual Supplement, Chadwick Auxiliary Fuel System C-22, dated October 21, 1981, is incorporated in the Rotorcraft Flight Manual.

3. Alternate modifications or other actions which provide an equivalent level of safety may be used when approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Mountain Region.

4. Special flight permits may be issued in accordance with Federal Aviation Regulation Part 21, Sections 21.197 and 21.199 to operate each helicopter to a base for the accomplishment of the modification required by this AD.

This amendment becomes effective September 1, 1982.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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