<< >> NASA ASRS Report 859757, October 2009

A mechanic reports that during a left-hand engine removal on a crj-200; the right-hand engine mounts were found installed at the left engine position. The left-hand engine mounts were actually installed on the right engine. Both engines had been removed while in heavy maintenance at a foreign repair station.

Attributes
ACN	859757
Time
Date	200910
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Dawn
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Powerplant Mounting
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Experience	Maintenance Technician 26
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

During left-hand engine removal; found left-hand engine mounts were installed on right-hand side of aircraft and right-hand engine mounts actually installed on left-hand side of aircraft. Both engine mounts were installed at ZZZZ. The crj-200 had both engines removed while in heavy maintenance; previous to this scheduled engine change. Mounts got physically swapped while in heavy maintenance. Alert records forms were filled out and forwarded to aircraft records department; for correction of mounts to proper position and to have affected mounts removed from aircraft. Suggest better oversight of heavy maintenance activity.

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Original NASA ASRS Text

Title: A Mechanic reports that during a left-hand engine removal on a CRJ-200; the right-hand engine mounts were found installed at the left engine position. The left-hand engine mounts were actually installed on the right engine. Both engines had been removed while in Heavy Maintenance at a Foreign Repair Station.

Narrative: During left-hand engine removal; found left-hand engine mounts were installed on right-hand side of aircraft and right-hand engine mounts actually installed on left-hand side of aircraft. Both engine mounts were installed at ZZZZ. The CRJ-200 had both engines removed while in Heavy Maintenance; previous to this scheduled engine change. Mounts got physically swapped while in Heavy Maintenance. Alert Records forms were filled out and forwarded to Aircraft Records Department; for correction of mounts to proper position and to have affected mounts removed from aircraft. Suggest better oversight of Heavy Maintenance activity.

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.