Federal Department of the Environment, Transport, Energy and

Communications DETEC

Federal Office of Civil Aviation FOCA

Safety Division

- Aircraft

Lufttüchtigkeitsanweisung (LTA)

Consigne de Navigabilité (CN)

Direttive sulla N avig abilità (DN )

Airworthin ess Directive (AD) FOCA AD



## HB

- 2 013

- 009

Inkraftsetzung

Mise en vigue u r

Entrata in vigore

Effective Date 21 October 20 13 

### Pilatus

– PC

- 7

FOCA TC/TCDS No: F 56

- 20

1 / 2

Rechtsgrundlage: Art. 26, 51 und 51A (Verordnung über die Luftt üchtigkeit von Luftfahrzeugen: SR 748.215.1)

Base juridique: Art. 26, 51 et 51A ( Ordonnance sur la navigabilité des aéronefs: SR 748.215.1)

Base giuridica: Art. 26, 51 e 51A ( Ordinanza concernente la navigabilità degli aeromobili: SR 748.215.1)

Legal base: Art. 26, 51 and 51A ( Ordinance on the airworthiness of aircraft: SR 748.215.1) Issue D ate: 07 October 20 13

ATA Chapter : ATA 24

– Electrical Power

Su bject: Electrical Power / Electrical Harness in the Engine Compartment

–

I n spection

Su persedure / R e vi sed

AD(s): Not applicable

Type Certificate

Holder’s Name: Pilatus Aircraft Ltd.

Manufacturer(s): Pilatus Aircraft Ltd.

Applicability: Model PC

- 7 aircraft, Manufa cturers Serial Numbers (MSN) 101 through

MSN 618

.

Reason: This Airworthiness Directive (AD) is prompted due to a report of chafing of

the wiring harn ess attached to the engine mounting frame on the RH side

of the engine compartment. Due to the limited space avai l able in this area

the wiring harness can chafe against the RH flexible duct for the co ndenser.

Such a condition, if left uncorrected, could l ead to a short circuit which

could cause a fire in the engine compartment.

In order to correct and control the situation, this AD requires a one

- time

inspection of the wiring harness and flexible duct of the condenser for

chafing. If major damage is foun d, the damaged parts must be replaced. If

minor damage is found, this AD requires the installation of a protective

sleeve on the wiring harness.

Required A c tion(s)

and Compliance

Time(s): Req uired as indicated below, unless already acco m plished:

(1) Withi n the next 90 days after the effective date of this AD, perform a

visual inspection of the wiring harness and the flexible duct in the

engine compartment for signs of chafing as required by paragraph

(§) 3.B.(3) and (5) of PIL A TUS PC

- 7 Service Bulletin No. 24

- 009.

(2) If during the inspection required by § (1) of this AD, any signs of

cha f ing and are found, prior to further flight, perform the corrective

actions according to the instructions provided by § 3.B. (3), (6) and

(7) of PILATUS PC

- 7 Service Bulletin N o. 24

- 00 9

.Lufttüchtigkeitsanweisung (LTA)

Consigne de Navigabilité (CN)

Direttive sulla Navigabilità ( DN )

Airworthiness Directive (AD) FOCA AD



## HB

- 20 13

- 009

2 / 2

Rechtsgrundlage: Art. 26, 51 und 51A (Verordnung über die Lufttüchtigkeit von Luftfahrzeugen: SR 748.215.1)

Base juridique: Art. 26, 51 et 51A ( Ordonnance sur la navigabilité des aéronefs: SR 748.215.1)

Base giuridica: Art. 26, 51 e 51A ( Ordinanza concernente la navigabilità d egli aeromobili: SR 748.215.1)

Legal base: Art. 26, 51 and 51A ( Ordinance on the airworthiness of aircraft: SR 748.215.1)

Ref. Public a tion(s): PILATUS PC

- 7 Se r vice Bulletin No. 24

- 009 , initial issue.

The use of later approved revisions of this document is acceptable for

compliance with the r e quirements of this AD.

For further inform a tion

co n tact: T he applicable manufacturer’s documentation may be obtained directly

from:

PILATUS AIRCRAFT LTD.

Customer Technical Support (MCC)

P.O. Box 992

CH

- 6371 Stans, Switzerland

Tel.: +41 (0)41 619 67 74 Fax: +41 (0)41 619 6 7 7 3

E

- mail: Techsupport@pilatus

- aircraft.com

For further information contact:

FEDERAL OFFICE OF CIVIL AVIATION (FOCA)

Design and Production (STEH)

CH

- 3003 Bern, Switzerland

Fax: +41 (0) 31 322 59 18

E

- mail: airdir@bazl.admin.ch