2026-19761RuleWallet

Helicopter SOS Antennas Flubbed: FAA Demands Manual Fix

Published Date: 9/28/2026

Rule

Summary

If you fly a Hélicoptères Guimbal Cabri G2 helicopter, listen up! The FAA found that the emergency locator transmitter (ELT) antenna might be installed wrong, making it send weak signals when you need it most. Starting November 2, 2026, pilots must update their flight manuals to fix this safety issue—no big costs, just a quick paperwork update to keep you safe in the skies.

Analyzed Economic Effects

3 provisions identified: 0 benefits, 2 costs, 1 mixed.

Overwater Flights Prohibited Until External ELT

If you operate a Hélicoptères Guimbal Cabri G2 helicopter (serial numbers 1003 through 1389, except S/N 1383 and 1388), you must revise the rotorcraft flight manual within 30 days after November 2, 2026 to add a limitation: Cabri G2 helicopters not equipped with an external ELT antenna are prohibited from conducting overwater operations under 14 CFR part 135. This means commercial overwater flights under part 135 cannot be flown with the internal ELT antenna configuration until you remove that limitation.

Optional Antenna Modification to Restore Operations

You may choose to modify the ELT antenna per Guimbal Mandatory Service Bulletin SB 25-006 B (dated December 12, 2025) to relocate the ELT antenna to an exterior position and install/relocate the VHF2 antenna; doing this is a terminating action that lets you remove the overwater limitation from the RFM. The FAA estimates the optional modification takes 3.5 work-hours (about $298) plus parts up to $1,000, for a total cost of up to $1,298 per helicopter.

Immediate Paperwork Requirement and Small Cost

Within 30 days after the AD becomes effective on November 2, 2026, you must insert the specified limitation into the rotorcraft flight manual (RFM). The FAA estimates this revision takes 1 work-hour at $85 per helicopter; for the 70 affected U.S.-registered helicopters, the FAA estimates a total cost of $5,950.

Personalized for You

How does this regulation affect your finances?

Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.

Key Dates

Published Date
Rule Effective
9/28/2026
11/2/2026

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
Federal Aviation Administration
Source: View HTML

Related Federal Register Documents

Previous / Next Documents

Back to Federal Register