81-21-05: Battery Packs
FAA order 81-21-05 is an airworthiness directive in force since October 19, 1981. The FAA's subject line: Battery Packs. System: emergency equipment.
What it applies to as the FAA lists it
- Kind of product
- Appliance
- Makes
- Artex Aircraft Supplies, Inc.
- Models
- Battery Packs
Dates and paperwork
- In force since
- October 19, 1981
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (906 characters)
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.
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/81-21-05.json · aircraft systems.