AD 81-21-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Artex Aircraft Supplies, Inc. | Battery Packs | Airworthiness Directives; ARTEX AIRCRAFT SUPPLIES, INC.: Applies to Artex Replacement Battery Packs, P/N 00-21-006, which are designed for use in the Emergency Beacon Corporation Emergency Locator Transmitter |
| appliance | Artex Aircraft Supplies, Inc. | Battery Packs | Airworthiness Directives; ARTEX AIRCRAFT SUPPLIES, INC.: Applies to Artex Replacement Battery Packs, P/N 00-21-006, which are designed for use in the Emergency Beacon Corporation Emergency Locator Transmitter |
Unsafe Condition
The Artex Replacement Battery Pack, P/N 00-21-006, may fail in salt water environments due to inadequate corrosion resistance, posing a risk of inoperability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 30 calendar days after the effective date, inspect the ELT and replace the Artex Battery Pack P/N 00-21-006 with a TSO-C91 approved battery pack. If replacement is unavailable, placard the ELT 'Not to be used in salt water' and operate for up to 90 days.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 calendar 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
Artex Aircraft Supplies, Inc. Battery Packs, P/N 00-21-006 designed for Emergency Beacon Corporation Emergency Locator Transmitter
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Battery Packs
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_81-21-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-21-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ARTEX AIRCRAFT SUPPLIES, INC.: Applies to Artex Replacement Battery Pack...Show more Subject: Battery Packs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/19/1981 Make: Artex Aircraft Supplies, Inc. Model: Battery Packs Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-21-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4231 AD NUMBER: 81-21-05 SUBJECT HEADING: Airworthiness Directives; ARTEX AIRCRAFT SUPPLIES, INC.: Applies to Artex Replacement Battery Packs, P/N 00-21-006, which are designed for use in the Emergency Beacon Corporation Emergency Locator Transmitter ACTION: SUMMARY: DATES: Effective October 19, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-21-05 ARTEX AIRCRAFT SUPPLIES, INC.: Amendment 39-4231. Applies to Artex replacement battery packs, P/N 00-21-006, which are designed for use in the Emergency Beacon Corporation Emergency Locator Transmitter. Within 30 calendar days after the effective date of this AD, inspect the ELT and if the battery is an Artex Battery Pack, P/N 00-21-006, replace it with a battery pack with a different part number which is approved under TSO-C91 for use in this ELT. Note: If no replacement battery pack is immediately available, placard the ELT "Not to be used in salt water." The airplane may be operated for up to 90 days with a placarded ELT. Alternative means of compliance 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 Region. This amendment becomes effective October 19, 1981. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_81-21-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-21-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ARTEX AIRCRAFT SUPPLIES, INC.: Applies to Artex Replacement Battery Pack...Show more Subject: Battery Packs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/19/1981 Make: Artex Aircraft Supplies, Inc. Model: Battery Packs Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-21-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4231 AD NUMBER: 81-21-05 SUBJECT HEADING: Airworthiness Directives; ARTEX AIRCRAFT SUPPLIES, INC.: Applies to Artex Replacement Battery Packs, P/N 00-21-006, which are designed for use in the Emergency Beacon Corporation Emergency Locator Transmitter ACTION: SUMMARY: DATES: Effective October 19, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-21-05 ARTEX AIRCRAFT SUPPLIES, INC.: Amendment 39-4231. Applies to Artex replacement battery packs, P/N 00-21-006, which are designed for use in the Emergency Beacon Corporation Emergency Locator Transmitter. Within 30 calendar days after the effective date of this AD, inspect the ELT and if the battery is an Artex Battery Pack, P/N 00-21-006, replace it with a battery pack with a different part number which is approved under TSO-C91 for use in this ELT. Note: If no replacement battery pack is immediately available, placard the ELT "Not to be used in salt water." The airplane may be operated for up to 90 days with a placarded ELT. Alternative means of compliance 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 Region. This amendment becomes effective October 19, 1981. 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.