Two maintenance technicians reported that the wing flaps of the aircraft made contact with under win...

Narrative:

We were assigned to an ETOPS pre departure clearance and to also troubleshoot 3 hydraulic leaks that were documented in the logbook. We positioned the stand using a spotter to get in place under the left trailing edge flap area. We proceeded to raise the stand in place; and through communication with the cockpit with handheld radios; we asked him to drop down the flaps. With the flaps at full extension; we proceeded to inspect for leaks. I was on the inboard side of the flaps; and my partner was on the outside portion. She saw something leaking and asked me to come over and look at it. The hydraulics were still on at that point. I went to the outboard to look at it with her; and at that point; we heard a noise. We went and looked back at the inboard side; and saw a flap had touched the lift and caused damage. We then tried to drop down lift; and it would not start. We asked the man in the cockpit to raise the flaps; and he did so. He then came out and tried to start our lift; and it wouldn't. We finally got it to go down bleeding down the lift.

Original NASA ASRS Text

Title: Two Maintenance Technicians reported that the wing flaps of the aircraft made contact with under wing stands when the aircraft settled due to fueling.

Narrative: We were assigned to an ETOPS PDC and to also troubleshoot 3 hydraulic leaks that were documented in the logbook. We positioned the stand using a spotter to get in place under the left trailing edge flap area. We proceeded to raise the stand in place; and through communication with the cockpit with handheld radios; we asked him to drop down the flaps. With the flaps at full extension; we proceeded to inspect for leaks. I was on the inboard side of the flaps; and my partner was on the outside portion. She saw something leaking and asked me to come over and look at it. The hydraulics were still on at that point. I went to the outboard to look at it with her; and at that point; we heard a noise. We went and looked back at the inboard side; and saw a flap had touched the lift and caused damage. We then tried to drop down lift; and it would not start. We asked the man in the cockpit to raise the flaps; and he did so. He then came out and tried to start our lift; and it wouldn't. We finally got it to go down bleeding down the lift.

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.

Attributes
ACN	1494449
Time
Date	201711
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
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
Person 2
Function	Technician
Events
Anomaly	Deviation - Procedural Maintenance Ground Event / Encounter Object

Two maintenance technicians reported that the wing flaps of the aircraft made contact with under wing stands when the aircraft settled due to fueling.