EASA AD No : 2010-0123 

EASA Form 110 Page 1/2 

EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2010-0123 

[Correction: 22 June 2010] 

Date: 22 June 2010 

Note: This Airworthiness Directive (AD) is issued by EASA, acting in accordance with 

Regulation (EC) No 216/2008 on behalf of the European Community, its Member States and of 

the European third countries that participate in the activities of EASA under Article 66 of that 

Regulation. 

This AD is issued in accordance with EC 1702/2003, Part 21A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the 

continuing airworthiness of an aircraft shall be ensured by accomplishing any applicable ADs. Consequently, no person may operate an 

aircraft to which an AD applies, except in accordance with the requirements of that AD, unless otherwise specified by the Agency [EC 

2042/2003 Annex I, Part M.A.303] or agreed with the Authority of the State of Registry [EC 216/2008, Article 14(4) exemption]. 

Type Approval Holder’s Name : 

Piaggio Aero Industries S.p.A.

Type/Model designation(s) : 

P.180 series aeroplanes 

TCDS Number : EASA.A.059 

Foreign AD : Not applicable 

Supersedure : None 

ATA 79 Oil - Engine Oil Dipstick – Inspection / Replacement 

Manufacturer(s): Piaggio Aero Industries S.p.A. 

Applicability: Model P.180 Avanti and P.180 Avanti II aeroplanes, all serial numbers. 

Reason: Some cases of failure of engine oil dipsticks, installed on Pratt & Whitney 

Canada (P&WC) PT6A66 and PT6A66B engines, were detected on P.180 

aeroplanes; such failures, due to moisture penetration into the dipstick and 

subsequent corrosion, can cause incorrect reading of the engine oil low level 

on the Refuel/Ground Test Panel. 

If left uncorrected, this situation could lead to in-flight engine failure(s). 

This AD requires: 

(1) repetitive visual checks of the engine oil levels to prevent an undetected 

low level condition; 

(2) repetitive inspections of the oil dipsticks to detect faulty units; 

(3) replacement of faulty oil dipsticks or visual checks of the oil level at 

reduced not to exceed intervals, until replacement of faulty units. 

The engine TC Holder is currently developing a modification that will address 

the unsafe condition identified in this AD; once such modification is developed, 

approved and available, further mandatory actions might be considered. 

 This Correction is issued to amend the AD number heading: it was PAD, it is 

AD. 
EASA AD No : 2010-0123 

EASA Form 110 Page 2/2 

Effective Date: 06 July 2010 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

(1) Within one month or 25 Flight Hours (FH) after the effective date of this 

AD (whichever occurs first), and thereafter at intervals not to exceed one 

month or 25 FH from the last check (whichever occurs first), perform in 

both engines: 

(1.1) a visual check of the oil level in accordance with the 

Accomplishment Instructions, Part A, of Piaggio Aero Industries 

(PAI) Service Bulletin (SB) 80-0287 Revision 1; 

(1.2) functional checks of the oil level dipstick in accordance with the 

Accomplishment Instructions, Part B and C, of PAI SB 80-0287 

Revision 1. 

(2) If the installed oil level dipsticks are compliant with P&WC Service 

Bulletin no. 14383, subsequent checks may be performed at intervals not 

to exceed one month or 50 FH, whichever occurs first. 

(3) If a failed dipstick is detected, and a serviceable spare unit is available, 

replace it before further flight. 

(4) If a failed dipstick is detected and a serviceable spare unit is not 

available, the failed dipstick may be reinstalled, but, until replacement, 

the visual check of the oil level in the affected engine, required in 

paragraph (1.1) of this AD, must be repeated at intervals not to exceed 5 

FH. Such intervals may be extended to 10 FH based on oil consumption 

in accordance with the Accomplishment Instructions, Part B, of PAI SB 

80-0287 Revision 1. 

(5) Replacement of the oil level dipstick does not terminate the repetitive 

inspection requirements of paragraph (1) of this AD. 

(6) Inspections already performed before the effective date of this AD in 

accordance with PAI SB 80-0287 original issue are acceptable for 

compliance with the requirements of this AD. After the effective date of 

this AD, PAI SB 80-0287 Revision 1 must be used. 

Ref. Publications: Piaggio Aero Industries Service Bulletin 80-0287 Revision 1. 

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

compliance with the requirements of this AD. 

Remarks: 1. If requested and appropriately substantiated, EASA can approve 

Alternative Methods of Compliance for this AD. 

2. This AD was posted on 20 April 2010 as PAD 10-033 for consultation until 

18 May 2010. No comments were received during the consultation period. 

3. Enquiries regarding this AD should be referred to the Airworthiness 

Directives, Safety Management & Research Section, Certification 

Directorate, EASA. E-mail: ADs@easa.europa.eu. 

4. For any question concerning the technical content of the requirements in 

this AD, please contact: 

Piaggio Aero Industries S.p.A - Airworthiness Office. 

Phone: +39 010 6481353 , Fax: +39 010 6481881; 

E-mail: airworthiness@piaggioaero.it .