Airworthiness Directive · Amendment 39-16468 · Engine oil
PIAGGIO AERO INDUSTRIES S.p.A. Model PIAGGIO P-180 Airplanes
This AD applies to PIAGGIO AERO INDUSTRIES S.p.A. Model PIAGGIO P-180 airplanes, all serial numbers, certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions:
(1) Within one month after November 18, 2010 (the effective date of this AD) or within 25 hours time-in-service (TIS) after November 18, 2010 (the effective date of this AD), whichever occurs first, and repetitively thereafter at intervals not to exceed one month or 25 hours TIS, whichever occurs first, do the following in both engines:
(i) Visually check the oil level following the Accomplishment Instructions, Part A, of PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin (Mandatory) N.: 80-0287, Rev. N. 1, dated March 24, 2010; and
(ii) Do a functional check and inspection of the dipstick following the Accomplishment Instructions, Part B and C, of PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin (Mandatory) N.: 80-0287, Rev. N. 1, dated March 24, 2010.
(2) If, as determined by the inspection in paragraph (f)(1)(ii) of this AD, the installed dipsticks are compliant with P&WC Service Bulletin no. 14383, the repetitive inspections required in paragraph (f)(1) of this AD may be done at intervals not to exceed one month or 50 hours TIS, whichever occurs first.
(3) If a failed dipstick is found during any functional check required in paragraph (f)(1)(ii) of this AD, do one of the following;
(i) If a replacement dipstick is available, replace it before further flight; or
(ii) If a replacement dipstick is not available, the failed dipstick may be reinstalled, but, until replacement, the oil level check specified in paragraph (f)(1)(i) of this AD must be repetitively done in the affected engine within 5 hours TIS from the last check. The repetitive oil level check interval may be extended to 10 hours TIS based on oil consumption in accordance with the Accomplishment Instructions, Part B, of PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin (Mandatory) N.: 80-0287, Rev. N. 1, dated March 24, 2010.
(4) Replacement of the oil level dipstick does not terminate the repetitive check requirements of paragraph (f)(1) of this AD.
Note: This AD differs from the MCAI and/or service information as follows: No differences.
