Airworthiness directives › 2014-16-09
AD 2014-16-09 Airworthiness Directives; The Boeing Company Airplanes
Models named: 707-100 long body, -200, -100B long body, -100B short body, 707-300, -300B, -300C, -400 series, 720, 720B series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company airplanes identified in paragraphs (c)(1) through (c)(3) of this AD, certificated in any category. (1) Model 707-100 long body, -200, -100B long body, and -100B short body airplanes; Model 707-300, -300B, -300C, and -400 series airplanes; and Model 720 and 720B series airplanes; as identified in Boeing 707 Alert Service Bulletin A3538, dated October 2, 2013. (2) Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes, as identified in Boeing Alert Service Bulletin 727-35A0031, dated July 18, 2013. (3) Model 737-100, -200, and -200C series airplanes, as identified in Boeing Alert Service Bulletin 737-35A1140, dated August 28, 2013.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 36 months after the effective date of this AD: Replace the low-pressure oxygen hoses in the flight compartment with non-conductive low-pressure oxygen hoses, in accordance with the Accomplishment Instructions of the service bulletin specified in paragraphs (g)(1) through (g)(3) of this AD, as applicable. (1) For Model 707-100 long body, -200, -100B long body, and -100B short body series airplanes; Model 707-300, -300B, -300C, and -400 series airplanes; and Model 720 and 720B series airplanes: Boeing 707 Alert Service Bulletin A3538, dated October 2, 2013. (2) For Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes: Boeing Alert Service Bulletin 727-35A0031, dated July 18, 2013. (3) For Model 737-100, -200, and -200C series airplanes: Boeing Alert Service Bulletin 737-35A1140, dated August 28, 2013.
Unsafe condition
This AD was prompted by a report of a fire which originated near the first officer's area and caused extensive damage to the flight deck on a different airplane model. We are issuing this AD to prevent inadvertent electrical current from passing through an internal, anti-collapse spring of the low-pressure oxygen hose, which can cause the low-pressure oxygen hose to melt or burn, leading to an oxygen-fed fire and/or smoke in the flight deck.
Affected ADs
None.
Read the original on the Federal Register →
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1