A mechanic reports lowering the flaps of a crj-900 onto a steel toolbox that was behind the wing; bu...

Attributes
ACN	833745
Time
Date	200904
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Trailing Edge Flap
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Ground Event / Encounter Object

Narrative:

During line check on aircraft; I was ready to lower the flaps. From an area by the passenger door; looked under the aircraft for obstructions; all objects appeared to be clear. There was a toolbox behind the wing; but appeared to be out of the way. I climbed the passenger steps and called out 'flaps' to warn of flap surface movement. Lowered flap handle to 45 degrees; flaps extended onto the toolbox approximately 4 inches. Suggest perhaps have an area marked around the aircraft; where toolboxes are not allowed into.

Original NASA ASRS Text

Title: A Mechanic reports lowering the flaps of a CRJ-900 onto a steel toolbox that was behind the wing; but appeared to be out of the way. The flaps extended onto the toolbox approximately 4-inches.

Narrative: During line check on aircraft; I was ready to lower the flaps. From an area by the passenger door; looked under the aircraft for obstructions; all objects appeared to be clear. There was a toolbox behind the wing; but appeared to be out of the way. I climbed the passenger steps and called out 'flaps' to warn of flap surface movement. Lowered flap handle to 45 degrees; flaps extended onto the toolbox approximately 4 inches. Suggest perhaps have an area marked around the aircraft; where toolboxes are not allowed into.

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.

A mechanic reports lowering the flaps of a crj-900 onto a steel toolbox that was behind the wing; but appeared to be out of the way. The flaps extended onto the toolbox approximately 4-inches.