AD 2006-17-11

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.

The term “service bulletin,” as used in this AD, means the Accomplishment Instructions of the service bulletins identified in Table 2 of this AD, as applicable:

For all Model 767-400ER series airplanes; and the Model 777-200 and -300 series airplanes identified in Boeing Special Attention Service Bulletin 777-26-0033, dated December 5, 2002: Within 18 months or 6,000 flight hours after the effective date of this AD, whichever is first, test the fill and safety fittings of the cargo fire extinguishing bottles in the forward cargo compartment for leaks, in accordance with the applicable service bulletin. Repeat the test thereafter at intervals not to exceed 18 months or 6,000 flight hours, whichever is first, in accordance with the service bulletin, until the replacement required by paragraph (h) of this AD is accomplished.

(1) If no leak is found or if the leak rate is below the calibrated rate specified in the service bulletin, before further flight, apply the corrosion inhibiting compound (CIC) to the safety disc inside the fill fitting and reidentify the cargo fire extinguishing bottle, in accordance with the applicable service bulletin.

(2) If any leak above the calibrated rate specified in the service bulletin is found, before further flight, replace and reidentify the cargo fire extinguishing bottle with new or reworked fire extinguishing bottles, in accordance with the applicable service bulletin; except where the service bulletin specifies that the replacement may be accomplished according to an operator's “equivalent procedure,” replace in accordance with a method approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA. Chapter 26-23-02/401 of the Boeing 767 Aircraft Maintenance Manual (AMM) or Chapter 26-23-01/401 of the Boeing 777 AMM, as applicable, is one approved method.

Note 1: The Boeing service bulletins listed in Table 3 of this AD refer to certain Kidde Aerospace service bulletins, as applicable, as additional sources of service information for testing and reidentifying the cargo fire extinguishing bottles.

For all airplanes: Within 60 months after the effective date of this AD, replace the existing cargo fire extinguishing bottles with reworked fire extinguishing bottles, in accordance with the applicable service bulletin. Replacement of a cargo fire extinguishing bottle with a reworked fire extinguishing bottle terminates the repetitive tests and CIC applications required by paragraph (g) of this AD for that fire extinguishing bottle only.

Note 2: The Boeing service bulletins listed in Table 4 of this AD refer to certain Kidde Aerospace service bulletins, as applicable, as additional sources of service information for reworking the cargo fire extinguishing bottles.

(i) For all airplanes: As of the effective date of this AD, no person may install a cargo fire extinguishing bottle, part numbers (P/Ns) 473474-1 and -2, P/Ns 473475-1 and -2,P/Ns 473854-1 and -2, or P/Ns 473876-1 and -2, on any airplane, unless the initial test required by paragraph (g) of this AD is accomplished.

For all Model 777-200 series airplanes; and Model 777-300 series airplanes identified as Group 2 in Boeing Special Attention Service Bulletin 777-26-0034, dated January 22, 2004: Actions done before the effective date of this AD in accordance with Boeing Special Attention Service Bulletin 777-26-0034, dated January 22, 2004, are acceptable for compliance with the corresponding requirements of this AD.

(k) For all Model 767-400ER series airplanes: Actions done before the effective date of this AD in accordance with Boeing Special Attention Service Bulletin 767-26-0124, dated December 5, 2002, are acceptable for compliance with the corresponding requirements of this AD.