Narrative:

Gulfstream 1159A aircraft was operated in march 2012 with a major unapproved alteration reportedly with local federal agency knowledge. Said major unapproved alteration is a large cutout in the pressure vessel lower skin. The major unapproved alteration was not deemed structurally acceptable by the designated engineering representative (der).upon submission for approval via [FAA] form 8110-3; the existing alteration was deemed structurally unacceptable; nor in compliance with the fars. The major unapproved alteration was significantly modified prior to obtaining federal agency approval via der.

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Original NASA ASRS Text

Title: A Gruman-Gulfstream 1159A aircraft was reported to have operated with a major unapproved alteration of the pressure vessel lower skin. A large cutout repair was deemed structurally unacceptable; nor in compliance with the FARs by a Designated Engineering Representative (DER).

Narrative: Gulfstream 1159A aircraft was operated in March 2012 with a Major Unapproved Alteration reportedly with local Federal Agency knowledge. Said Major Unapproved Alteration is a large cutout in the pressure vessel lower skin. The Major Unapproved Alteration was not deemed structurally acceptable by the Designated Engineering Representative (DER).Upon submission for approval via [FAA] Form 8110-3; the existing alteration was deemed structurally unacceptable; nor in compliance with the FARs. The Major Unapproved Alteration was significantly modified prior to obtaining Federal Agency approval via DER.

Data retrieved from NASA's ASRS site as of July 2013 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.