Airworthiness Directives; Boeing Model 737-300, -400, and -500 Series Airplanes Modified In Accordance With Supplemental Type Certificate (STC) ST00127BO
airworthiness · Rule · Final rule. · Published 2005-03-14 · Effective 2005-04-18 · 70 FR 12401
Document
Document number
05-4827
Federal Register citation
70 FR 12401
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2005-03-14
Effective date
2005-04-18
FAA docket
Docket No. FAA-2004-19891
Abstract
The FAA is adopting a new airworthiness directive (AD) for Boeing Model 737-300, -400, and -500 series airplanes modified in accordance with STC ST00127BO. This AD requires installation of bonding straps to the safe side harnesses of the digital transient suppression device of the fuel quantity indicating system. This AD is prompted by the results of fuel system reviews conducted by the STC holder. We are issuing this AD to prevent unsafe levels of current or energy from entering the fuel tank, due to hot short faults or threat conditions associated with the safe side harness assembly, which could result in a fire or explosion of the fuel tank.