PA.IX.D.K1FAA-S-ACS-6C · Nov 2023Knowledge
Emergency Locator Transmitter (ELT) operations, limitations, and testing requirements.
Emergency Locator Transmitter (ELT) operations, limitations, and testing requirements.
Bottom line
An emergency locator transmitter (ELT) is required equipment, and it must be inspected within 12 calendar months after the last inspection. ELT batteries must be replaced, or recharged if the batteries are rechargeable, when the transmitter has been in use for more than 1 cumulative hour.
Key numbers
| Number | What it means |
|---|---|
| within 12 calendar months after the last inspection | Inspection |
| more than 1 cumulative hour of transmitter use | Battery use |
| 50 percent of battery useful life expired | Battery life |
FAA references
- PHAK ch. 9 (p. 9-9) — FAA-H-8083-25C (2023)
- PHAK ch. 9 (p. 9-13) — FAA-H-8083-25C (2023)
- AFH ch. 2 (p. 2-3) — FAA-H-8083-3C
- SEA ch. 7 (p. 7-8) — FAA-H-8083-23
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