Main Gearbox Oil Pressure Switch – P/N 704A37-721-089

PN: 704A37-721-089
ALT: 704A37721089
DESCRIPTION: SWITCH PRESSURE
CONDITION: NEW
TRACEABILITY: EASA FORM 1 

The 704A37-721-089 Main Gearbox (MGB) Oil Pressure Switch is an OEM pressure switch manufactured by Airbus Helicopters. It is designed to monitor the main gearbox oil pressure and activate the cockpit warning system when oil pressure falls below the specified threshold. This part was introduced as an improved replacement for P/N 704A37-721-082 and is mandated by FAA Airworthiness Directive for certain AS350 helicopters.

Technical Specifications

Part Number: 704A37-721-089
Alternate Part Number: 704A37721089
Component Type: Main Gearbox Oil Pressure Switch
Category: Pressure Switch
System: Main Gearbox (MGB) Oil Pressure Monitoring
OEM: Airbus Helicopters