Narrative:

Aircraft had a pinched hose from the portable fire extinguisher that would terminate into the hazardous freight container if carried. The mechanic (amt) removed the hose from the aircraft and I issued an open item deferral under the nef program noted in our general maintenance manual (gmm). An MEL item does address the extinguisher itself; but not the delivery system. You have two extinguishers that go to a common manifold; the two hoses that come off the manifold go to one or two freight containers (if installed). The MEL is unclear; I have submitted an engineering change request to have hoses addressed within this MEL and a reference to void a (freight container) position if necessary.

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Original NASA ASRS Text

Title: A Maintenance Controller describes his efforts to correctly defer a kinked fire extinguisher hose for their cargo containers on a B757-200.

Narrative: Aircraft had a pinched hose from the portable fire extinguisher that would terminate into the hazardous freight container if carried. The Mechanic (AMT) removed the hose from the aircraft and I issued an open item deferral under the NEF program noted in our general maintenance manual (GMM). An MEL item does address the extinguisher itself; but not the delivery system. You have two extinguishers that go to a common manifold; the two hoses that come off the manifold go to one or two freight containers (if installed). The MEL is unclear; I have submitted an engineering change request to have hoses addressed within this MEL and a reference to void a (freight container) position if necessary.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.