Document ID: chunk:federal_register_of_legislation:F2013L01697:body:0:p2
Version: federal_register_of_legislation:F2013L01697
Segment Type: other
Provision Reference: 
Character Range: 3088–6003

may be inserted into the AFM, and the copy of the AD may be removed from the applicable revised sections of the AFM.

   Optional Action for Certain Requirements of AD/B737/208, AD/B737/216 and AD/B737/255.

   If any of the following optional actions are taken, make a notation to the effect in the compliance summary for the appropriate AD.

   For Model 737-100, -200 and -200C series aeroplanes: Using the phrase, "If the intermittent cabin altitude/configuration warning horn sounds in flight:" in place of the phrase, "If the cabin altitude warning horn sounds:" in the revisions to the "Cabin Altitude Warning or Rapid Depressurization" procedure is acceptable for compliance with AD/B737/255.

   For Model 737-300, -400 and -500 series aeroplanes: Using the phrase, "If the intermittent cabin altitude/configuration warning horn sounds in flight:" in place of the phrase, "If the cabin altitude warning horn sounds:" in the revisions to the "Cabin Altitude Warning or Rapid Depressurization" procedure is acceptable for compliance with AD/B737/208.

   For Model 737-600, -700, -700C, -800 and -900 series aeroplanes: Using the phrase, "If the intermittent cabin altitude/configuration warning horn sounds in flight:" in place of the phrase, "Condition: The cabin altitude warning horn sounds." in the revisions to the "Cabin Altitude Warning or Rapid Depressurization" procedure is acceptable for compliance with AD/B737/216.

      Note:  FAA AD 2006-13-13 Amdt 38-14666 dated 15 June 2006 refers.

Compliance:  Within 60 days after the effective date of this AD.

             Revising the AFM as per the approved FAA AMOC Letter 130S-09-134a dated
             28 April 2009 is an alternate means of complying with requirement 2 of this AD.
             The effective date of this Amendment is 27 September 2013.
Background:  This AD results from reports that aeroplanes have failed to pressurize, and that the flight crews failed to react properly to the cabin altitude warning horn.  The issuing of this AD to prevent failure of the aeroplane to pressurize and subsequent failure of the flight crew to recognize and react to a valid cabin altitude warning horn, which could result in incapacitation of the flight crew due to hypoxia (lack of oxygen in body) and consequent loss of aeroplane control.

             Amendment 1 removed the word "RECALL" from the AFM amendment detailed in Requirement 2 and placed that word on the second line of the AFM.

             Amendment 2 allows the revising of the AFM as per the approved FAA AMOC Letter 130S-09-134a dated 28 April 2009 as an alternate means of complying with requirement 2 of this AD.

             Amendment 1 of this AD became effective on 26 October 2006.

             The original issue of this AD became effective on 28 September 2006.

Peter Nikolic
Delegate of the Civil Aviation Safety Authority

4 September 2013