A B737-500 was dispatched in non compliance with one left and one right pylon upper surface access panels not secured. Panels departed in flight.

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Attributes
ACN	573118
Time
Date	200302
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Dawn
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-500
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	573118
Person 2
Affiliation	company : air carrier
Qualification	technician : powerplant technician : airframe
ASRS Report	573340
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure contributing factor : work cards performance deficiency : unqualified personnel performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements performance deficiency : installation performance deficiency : inspection
Supplementary
Problem Areas	Chart Or Publication Environmental Factor Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance
Situations
Publication	Lubrication Job Card

Narrative:

At XA00, I was assigned to take over on aircraft. After checked wash lobe card. The lube was completed, we were to close panels that were opened. I closed the r-hand, inboard flap track fairing #3601R. After completion of the panel 3601R, my work partner had finished installing panel 8501R. L-side panels appeared to be done with everyone moving away from aircraft to move it out of the hangar. I went to signoff my panel, and chose to signoff my work partners panel to expedite the paperwork with getting the plane to the gate. On steps 5C and D, I north/a'ed [not applicable'd] these steps, because the panels had not been removed. After completion of paperwork, the plane was being pushed out of hangar. I looked from a distance to see if the panels were installed (5736L, 5836R), when I returned with the logbook, they were starting engines, and I was unable to get on top of the pylon to doublechk panel.

Original NASA ASRS Text

Title: A B737-500 WAS DISPATCHED IN NON COMPLIANCE WITH ONE L AND ONE R PYLON UPPER SURFACE ACCESS PANELS NOT SECURED. PANELS DEPARTED IN FLT.

Narrative: AT XA00, I WAS ASSIGNED TO TAKE OVER ON ACFT. AFTER CHKED WASH LOBE CARD. THE LUBE WAS COMPLETED, WE WERE TO CLOSE PANELS THAT WERE OPENED. I CLOSED THE R-HAND, INBOARD FLAP TRACK FAIRING #3601R. AFTER COMPLETION OF THE PANEL 3601R, MY WORK PARTNER HAD FINISHED INSTALLING PANEL 8501R. L-SIDE PANELS APPEARED TO BE DONE WITH EVERYONE MOVING AWAY FROM ACFT TO MOVE IT OUT OF THE HANGAR. I WENT TO SIGNOFF MY PANEL, AND CHOSE TO SIGNOFF MY WORK PARTNERS PANEL TO EXPEDITE THE PAPERWORK WITH GETTING THE PLANE TO THE GATE. ON STEPS 5C AND D, I N/A'ED [NOT APPLICABLE'D] THESE STEPS, BECAUSE THE PANELS HAD NOT BEEN REMOVED. AFTER COMPLETION OF PAPERWORK, THE PLANE WAS BEING PUSHED OUT OF HANGAR. I LOOKED FROM A DISTANCE TO SEE IF THE PANELS WERE INSTALLED (5736L, 5836R), WHEN I RETURNED WITH THE LOGBOOK, THEY WERE STARTING ENGS, AND I WAS UNABLE TO GET ON TOP OF THE PYLON TO DOUBLECHK PANEL.

Data retrieved from NASA's ASRS site as of July 2007 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.