The U.S. aircraft register, updated daily
FAA orders · emergency airworthiness directive · historical

2003-08-51: Tail rotor blade pitch horns

Emergency order 2003-08-51 is an airworthiness directive. The FAA's subject line: Tail rotor blade pitch horns. It names Hughes 369 500 series helicopters, Md Helicopters Inc 369: about 231 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: rotorcraft systems.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
MD Helicopters, Inc.
Models
369, 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS
On this site
Hughes 369 500 series helicopters 123 registered
Md Helicopters Inc 369 108 registered

Dates and paperwork

Docket
2003-SW-17-AD
Replaced by
2013-19-24
Status
Historical
The FAA's document
Read the order on the FAA's site

Related safety bulletins advice on the same designs, not orders

2021-11-29AIR-21-19 · AERIAL TOW EQUIPMENT, Side Pull Hook
2021-11-29AIR-21-19R1 · AERIAL TOW EQUIPMENT, Side Pull Hook
2012-10-03SW-12-45 · Garmin Model 400W/500W Series GPS-WAAS Navigation System

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/2003-08-51.json · aircraft systems.