AIRWORTHINESS DIRECTIVE

CAA-AD-063/2002

Date of issue: June 12, 2002

HELICOPTER – NAVIGATION – HORIZONTAL SITUATION INDICATOR KI 525A (ATA 34) – INSPECTION

Applicability: AS 355 helicopters versions E, F, F1, F2 and N equipped with HSI KI 525A.

Effective date: August 08, 2002.

Compliance : Required as indicated in DGAC AD 2002-280-068(A).

Remarks:. The compliance of this AD must be recorded in Aircraft Logbook, where applicable the requirements of this AD must be integrated into Aircraft Technical Documentation. Address inquiries concerning this AD to: Civil Aviation Authority, Airworthiness Division, Ruzyne Airport, 160 08 Prague 6, Czech Republic, tel: 420 2 33320922, fax: 420 2 20562270

Ing. Pavel MATOUŠEK
Director of Airworthiness Division
CAA CZ

DGAC AD No.: 2002-280-068(A)

EUROCOPTER

AS 355 helicopters

Navigation - Horizontal situation indicator KI 525A (ATA 34)

1. EFFECTIVITY

AS 355 helicopters versions E, F, F1, F2 and N equipped with HSI KI 525A.

2. REASON

This Airworthiness Directive is issued following the discovery of incorrect installation of HSI KI 525A P/N 066-3046-07 (non-compliance with equipment manufacturer ALLIEDSIGNAL Service Bulletin No. 341), which might result in navigation errors.

3. MANDATORY ACTIONS AND COMPLIANCE TIME

The following measures are rendered mandatory from the effective date of this Airworthiness Directive.

- No later than within the next 100 flight hours or within 1 month (whichever limit is reached first):

a) Check the part number of HSI KI 525A installed on aircraft.

b) If the part number read is 066-3046-07 comply with the instructions given in paragraph 2.A.1 or paragraph 2.A.2 of referenced EUROCOPTER AS 355 Alert Telex No. 34.00.09 according to aircraft installation.

REF.: EUROCOPTER AS 355 Alert Telex No. 34.00.09.

EFFECTIVE DATE: JUNE 08, 2002