Inspector reported non compliance with required procedures for the inspection of the super crown area of a B737-700 in for overnight service.

Date: 2022-02 · Aircraft: B737-700 · Phase: ground

Anomalies: aircraft-equipment-problem-less-severe|deviation-discrepancy-procedural-published-material-policy|deviation-discrepancy-procedural-maintenance|deviation-discrepancy-procedural-far

Synopsis

Inspector reported non compliance with required procedures for the inspection of the super crown area of a B737-700 in for overnight service.

Narrative

On Day 0; Aircraft X was scheduled for a super crown inspection at ZZZ. Included in the task card package was task card XXXX-XXXXX-ZZ Fuselage skin inspection- chem mill step at forward entry door.The inspection area is from BS360-BS380 below stringer 8L. Several months later; a repair was installed at BS380 between S7L and S8L that extends forward into the inspection area designated on the paperwork.Task card step XX requires engineering to be notified with a Maintenance Request; if any existing repairs are in the inspection area or any condition prohibits the inspection from being accomplished. I did not contact engineering for instructions nor did I document the use of a Medium Frequency Eddy Current inspection within 4 in. of the repair doubler. The same inspection was repeated in ZZZ1 on schedule since. That inspector also did not request a Maintenance Request.I don't specifically remember performing the inspection on this aircraft; as I accomplish many super crown inspections. So; I can't be certain as to what occurred. It is possible that the patch did not obstruct the ability to fully inspect the chem-mill pocket; as the pocket does not extend completely to the BS380 frame. If so; then it did not prohibit the inspection from being accomplished; therefore a Maintenance Request was not requested.This task card is always the first task card I accomplish during the super crown inspection. If the patch did in fact hinder fully inspecting the pocket; I would have accomplish the Medium Frequency Eddy Current inspection and continue on with the rest of the task cards in the package. If this is the case. my assumption is that by the time we finished the rest of the inspections and started signing the 15 or so task cards that make up the super crown package; that the requirement to contact engineering for the Maintenance Request slipped my mind.In the future I will take photos and immediately request a Maintenance Request any time a repair exist in the inspection area designated by the paper work. Even if it does not prohibit the accomplishment of the inspection.

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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.