After performing a visual walk around of a B747-400; mechanic is informed the next station found spe...

Narrative:

Assigned walkaround as part of 3 service before going on contract assignment with another air carrier. Completed aircraft visual; found nothing damaged; signed off item on 3 service. Upon returning to work the following day; my supervisor asked me if I had done the walkaround on aircraft X the previous day. I said I had; and that it was a good aircraft. The supervisor told me that the next station had found speed tape on the aircraft upon arrival in ZZZZ. I told the supervisor I found no tape on my walkaround. Another supervisor requested for a statement in regards to my walkaround on aircraft X. I gave him a statement without a union representative present. I was given disciplinary action by my supervisor. I am aware that aircraft X was towed at about XA30 to the gate and remained there until departure at about XD40PM. This is about 5 1/2 - 6 hours. Aircraft external air conditioning was connected and the said taped or damaged panel had to be opened. If panel was damaged; ramp; gate captain; flight crew; made no mention of speed tape on the panel. I suspect damage was done either at ZZZ just before departure or upon arrival at ZZZZ; whoever placed tape on panel did not report it to maintenance at ZZZ. Again no tape was visible on my walkaround at XU30.

Original NASA ASRS Text

Title: After performing a visual walk around of a B747-400; Mechanic is informed the next station found speed tape covering a damaged ground conditioned air connection door panel. No maintenance record of speed tape or damage.

Narrative: Assigned walkaround as part of 3 service before going on contract assignment with another air carrier. Completed aircraft visual; found nothing damaged; signed off item on 3 service. Upon returning to work the following day; my Supervisor asked me if I had done the walkaround on Aircraft X the previous day. I said I had; and that it was a good aircraft. The Supervisor told me that the next station had found speed tape on the aircraft upon arrival in ZZZZ. I told the Supervisor I found no tape on my walkaround. Another Supervisor requested for a statement in regards to my walkaround on Aircraft X. I gave him a statement without a union representative present. I was given disciplinary action by my Supervisor. I am aware that Aircraft X was towed at about XA30 to the gate and remained there until departure at about XD40PM. This is about 5 1/2 - 6 hours. Aircraft external air conditioning was connected and the said taped or damaged panel had to be opened. If panel was damaged; Ramp; Gate Captain; flight crew; made no mention of speed tape on the panel. I suspect damage was done either at ZZZ just before departure or upon arrival at ZZZZ; whoever placed tape on panel did not report it to Maintenance at ZZZ. Again no tape was visible on my walkaround at XU30.

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.

Attributes
ACN	821792
Time
Date	200902
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B747-400
Flight Phase	Parked
Component
Aircraft Component	Fuselage Panel
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Experience	Maintenance Technician 20
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural FAR Deviation - Procedural Published Material / Policy

After performing a visual walk around of a B747-400; mechanic is informed the next station found speed tape covering a damaged ground conditioned air connection door panel. No maintenance record of speed tape or damage.