Airworthiness Directive · Amendment 39-15295 · Boeing Model 767-300F Series Airplanes
Boeing Model 767-300F Series Airplanes
This AD applies to Boeing Model 767-300F series airplanes, certificated in any category; as identified in Boeing Special Attention Service Bulletin 767-21-0192, dated March 23, 2006.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 767-300F series airplanes. This AD requires replacing the rotomolded duct(s) of the mix manifold system with new duct(s). This AD results from a report of failures of the duct joint seal of the mix manifold system. We are issuing this AD to prevent air conditioning leakage into the mix manifold bay. Such leakage could decrease the air flow to the flight compartment and main cabin or could allow smoke into the flight compartment in the event of a fire in the main cabin or forward cargo compartment.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 36 months after the effective date of this AD, do the applicable action specified in Table 1 of this AD in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 767-21-0192, dated March 23, 2006.
| For airplanes identified in the service bulletin as— | Do the following action— |
|---|---|
| (1) Group 1 airplanes | Replace the rotomolded duct between the transition duct of the right cooling pack and the mix manifold with a new duct made of aluminum. |
| (2) Group 2 airplanes | Replace the rotomolded ducts of the mix manifold system with new ducts made from Kevlar® and aluminum. |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
