Document ID: chunk:federal_register_of_legislation:F2006B09445:body:0:p3
Version: federal_register_of_legislation:F2006B09445
Segment Type: other
Provision Reference: 
Character Range: 6407–9684

DOOR SEAL INFLATION SYSTEM INOPERATIVE THIS AIRCRAFT CAN ONLY BE OPERATED IN UNPRESSURISED FLIGHT"

                 b.    Add the following statement to the Limitations section of the Flight Manual:

"ELECTRIC DOOR SEAL INFLATION SYSTEM INOPERATIVE THIS AIRCRAFT CAN ONLY BE OPERATED IN UNPRESSURISED FLIGHT"

               This task may be accomplished by inserting a copy of this Airworthiness Directive into the Limitations section of the Flight Manual.

             4.    Bob Fields Aerocessories electrically inflatable door seals are not to be installed on any aeroplane unless the actions specified in Bob Fields Aerocessories Service Bulletin No BFA-001 dated 3 November 1998 have been incorporated.

            Note 1: FAA AD 98-21-21 Revision 1 Amdt 39-11621 refers. Note 2: Following are optional alternate methods of compliance:
                1. Removal of all provisions of the Bob Fields Aerocessories Inflatable door seals and installation of the original equipment manufacturer door seals or other approved equivalent that is of a different design to the referenced Bob Fields Aerocessories inflatable door seals.

               b.    For Cessna P210 series (pressurised) aeroplanes or other aeroplanes that can obtain pressurisation without the door seals inflated:

                  (1)     Fabricate a placard that incorporates the following words utilising letters that are at least 2.5mm (0.1 inches) in height and install the placard on the instrument panel within the pilot's clear view:

                  "ELECTRIC DOOR SEAL INFLATION SYSTEM INOPERATIVE"

                  (2)     These aircraft can be operated pressurised with the electric door seal system inoperative in accordance with the applicable Flight Manual provisions for pressurised flight.

c.    The installation of a manually operated pump and retention of the Bob Fields Aerocessories STC provisions, except that the electric system must be deactivated in accordance with Requirement 1 of this Directive, noting that the design of the modification incorporating the pump must be approved by a person that either holds a delegation or an instrument of appointment under Regulation 35 of the Civil Aviation Regulations 1988.

d.    Modify the electric door seal inflation system in accordance with the procedures in Bob Fields Accessories Service Bulletin No BFA-001.

    Compliance: 1. Remains unchanged as - Before further flight.

                 2.    Remains unchanged as - Before further flight.

                 3.    Remains unchanged as - Before further flight.

                 4.    As of the effective date of this Amendment.

               This Amendment becomes effective on 25 January 2001.

               Background: The FAA has received numerous reports of occurrences of overheated components associated with the electric door seal inflation system on aircraft equipped with Bob Fields Aerocessories inflatable door seals installed in accordance with the applicable FAA STC. One occurrence resulted in an in-flight fire, other occurrences have resulted in:

                   1. the electric door seal pump being heavily charred,

b.    the pump assembly and resistors of the electric door seal pump being partially melted, and

c.    vinyl, plastic