Airworthiness Directive · Amendment 39-14373 · British Aerospace Model BAC 1-11 200 and 400 Series Airplanes
British Aerospace Model BAC 1-11 200 and 400 Series Airplanes
This AD applies to all British Aerospace Model BAC 1-11 200 and 400 series airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all British Aerospace Model BAC 1-11 200 and 400 series airplanes. This AD requires revising the airplane flight manual (AFM) to contain applicable AFM amendments, which advise the flightcrew of information pertaining to safely operating the fuel system. The AD also requires revising the FAA-approved maintenance program to include certain repetitive maintenance tasks intended to improve the safety of the fuel system. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent potential ignition sources inside the fuel system, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
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 3 months after the effective date of this AD, do the actions specified in paragraphs (f)(1) and (f)(2) of this AD to improve the safety of the fuel system, in accordance with the Accomplishment Instructions of Airbus UK BAC One-Eleven Alert Service Bulletin 28-A-PM6057, Issue 1, dated May 10, 2004.
(1) Revise the airplane flight manual to include the applicable amendments advising the flightcrew of appropriate procedures to check for proper operation of the fuel system, and to address tripped circuit breakers, failure of a fuel pump in flight, and operations in a low-fuel situation, as specified in Table 2 (under Section 4.11) of the service bulletin.
Note 1: The actions required by paragraph (f)(1) of this AD may be done by inserting a copy of the applicable advance amendment bulletins (AABs) specified in Table 2 of Airbus UK BAC One-Eleven Alert Service Bulletin 28-A-PM6057, Issue 1, dated May 10, 2004, into the AFM. When information identical to that in the applicable AABs has been included in the general revisions of the AFM, the AABs no longer need to be inserted into the AFM. (2) Revise the FAA-approved maintenance program to include all repetitive maintenance tasks specified in Table 1 (under Section 4.10.2.) of the service bulletin. Then, thereafter, comply with the requirements of these maintenance tasks at the interval specified in Table 1 of the service bulletin; except for airplanes that operate fewer than a total of 1,250 flight hours per year, accomplish the requirements of these maintenance tasks at the earlier of the times specified in columns 2 and 3 of Table 1 of the service bulletin. Where Table 1 of the service bulletin specifies a repetitive interval in “hours,” for the purposes of this AD, this means “flight hours.” Any applicable corrective actions must be done before further flight.
Note 2: After revising the maintenance program to include the required periodic maintenance tasks according to paragraph (f)(2) of this AD, operators do not need to make a maintenance log entry to show compliance with this AD every time those maintenance tasks are accomplished thereafter.
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.
