Narrative:

While the APU was suspended in the lifting sling; it 'flipped over' to an upside down position. High center of gravity while APU is in cradle/sling. Cradle/sling assembly is allowed to pivot; therefore allowing APU to flip over. Sling pivot points should not be able to move. Hangar. APU removal/installation sling.

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Original NASA ASRS Text

Title: An Aircraft Maintenance Technician (AMT) reports that a Honeywell RE 220 APU unit 'flipped over' to an upside down position as the unit was being lowered from the APU compartment of a CRJ-900 aircraft.

Narrative: While the APU was suspended in the lifting sling; it 'flipped over' to an upside down position. High center of gravity while APU is in cradle/sling. Cradle/sling assembly is allowed to pivot; therefore allowing APU to flip over. Sling pivot points should not be able to move. Hangar. APU removal/installation sling.

Data retrieved from NASA's ASRS site 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.