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EASA Regulations for Sikorsky S-61N

2 airworthiness directives and regulations affecting Sikorsky S-61N.

EASA AD US-2021-05-19

Tail Rotor Control System - Arm Assembly - Life Limit

The FAA Airworthiness Directive 2021-05-19 addresses Sikorsky Aircraft Model S-61L, S-61N, S-61NM, S-61R helicopters and Sikorsky Aircraft Corporation Model S-61A, S-61D, S-61E, and S-61V restricted category helicopters equipped with arm assembly part number S6140-62614-009. This directive establishes a life limit for the tail rotor control system arm assembly to prevent operation beyond 15,000 hours time-in-service (TIS).

Apr 6, 2021
Airworthiness DirectiveMaintenanceSafety MgmtSikorsky S-61Sikorsky S-61LSikorsky S-61NSikorsky S-61NMSikorsky S-61RSikorsky S-61ASikorsky S-61DSikorsky S-61ESikorsky S-61V

EASA SIB 2010-22

Crash Position Indicator CPI 503 series Emergency Locator Transmitter (ELT) - Limited Deployment Altitude

EASA Safety Information Bulletin SIB No. 2010-22 addresses the limited deployment altitude of the Crash Position Indicator CPI 503 series Emergency Locator Transmitters (ELTs) installed on various helicopter models including Eurocopter EC 155 B1, EC 225 LP, AS 332 L1/L2, AS 365 N2/N3, Eurocopter Deutschland EC 135 series, Agusta Westland A109 series, AB139, AW139, and Sikorsky S-61N, S-76 series, and S-92A helicopters. The bulletin highlights that these ELTs meet UK CAA specifications but do not fully comply with the JTSO/ETSO-2C126 EUROCAE ED-62 impact test criteria when deployed from high altitudes. A new model, P/N 503-16HT, has been developed to address this limitation.

Jul 30, 2010
Safety Information BulletinSafety MgmtAirbus Helicopters EC155 B1Airbus Helicopters EC225 LPAirbus Helicopters AS332 L1Airbus Helicopters AS332 L2Airbus Helicopters AS365 N2Airbus Helicopters AS365 N3Airbus Helicopters EC135AgustaWestland A109AgustaWestland AB139AgustaWestland AW139Sikorsky S-61NSikorsky S-76Sikorsky S-92A