# AD 91-11-14: Fuel and Janitrol System Lines - Type: Airworthiness directive - Status: Current - Products: Vulcanair P 68 Observer, P 68C and P 68C-TC - Effective: June 14, 1991 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Amendment: 39-6992 - Docket: 91-CE-39-AD - Registered aircraft: 35 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/85C90593CE8888D586256A64005B2C9E.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/91-11-14 ## The airworthiness directive 91-11-14 PARTENAVIA COSTRUZIONI AERONAUTICHE: Amendment 39-6992. Docket No. 91-CE-39-AD. Applicability: Models P68C-TC airplanes (all serial numbers (S/N)), P68-OTC airplanes (S/N 344-01-OTC and 340-02-OTC), and P68C and P68 Observer airplanes (S/N 268 to 381), certificated in any category. Compliance: Within the next 50 hours time-in-service after the effective date of this AD, unless already accomplished. To prevent fuel leakage into the airplane cabin that could result in ignition and explosion of the airplane, accomplish the following: (a) For Models P68C-TC and P68-OTC, remove the fuel and Janitrol system lines in accordance with the instructions in Partenavia Service Instruction No. 39, dated February 14, 1991. (1) Install the applicable service kit in accordance with the instructions in Partenavia Instruction No. 39. (2) Replace the light alloy line of the Janitrol system (part number (P/N) 7.6131-2) with P/N 7.6131C-2 on the applicable Model P68C-TC airplanes in accordance with the instructions in Partenavia Service Instruction No. 39. (b) For Models P68C and P68 Observer, remove the fuel and Janitrol system lines in accordance with the instructions in Partenavia Service Instruction No. 40, dated February 14, 1991. (1) Install the applicable service kit in accordance with the instructions in Partenavia Instruction No. 40. (2) Replace the light alloy line of the Janitrol system (part number (P/N) 7.6131-2) with P/N 7.6131C-2 on the applicable Model P68C airplanes in accordance with the instructions in Partenavia Service Instruction No. 40. (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a location where the requirements of this AD can be accomplished. (d) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Brussels Aircraft Certification Office, Europe, Africa, Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium. The request should be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office. (e) The replacements and modifications required by this AD shall be done in accordance with Partenavia Service Instruction No. 39 or Partenavia Service Instruction No. 40, both dated February 14, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. Section 552(a) and 1 CFR Part 51. Copies may be obtained from Partenavia Costruzioni Aeronautiche, S.p.A., Via G. Pascoli N. 7, 80026 Casoria (NA), Italy. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 1100 L Street, NW, Room 8401, Washington, DC. This amendment (39-6992, AD 91-11-14) becomes effective on June 14, 1991. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A31EU](https://openairdocs.org/tcds/A31EU): Vulcanair S.p.A.; names 3 of 10 models: P.68C-TC, P.68 Observer, P.68C ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 35 (35 by airframe model, 0 by engine model) - Makers: Partenavia 30, Vulcanair 5 Models with the most aircraft: - [Partenavia P.68C](https://openairdocs.org/model/partenavia-p-68c): 20 aircraft (airframe model) - [Partenavia P 68 OBSERVER](https://openairdocs.org/model/partenavia-p-68-observer): 5 aircraft (airframe model) - [Partenavia P 68 C/TC](https://openairdocs.org/model/partenavia-p-68-c-tc): 5 aircraft (airframe model) - [Vulcanair P68C](https://openairdocs.org/model/vulcanair-p68c): 5 aircraft (airframe model) All 4 models: https://openairdocs.org/ad/91-11-14/models.md Every aircraft: https://openairdocs.org/ad/91-11-14/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.