A B737-200 engine was removed for pylon damage inspection and reinstalled and returned to service in non compliance with a top wing panel not secured.

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Attributes
ACN	606351
Time
Date	200401
Day	Sat
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : inspector
ASRS Report	606351
Person 2
Affiliation	company : air carrier
ASRS Report	606122
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance performance deficiency : logbook entry performance deficiency : installation performance deficiency : inspection
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

During the final stages of the #2 engine drop and reinstall, as the crew and I were performing leak checks on the thrust reverser hydraulic lines, I gave the mechanic on top of the wing an ok to close the cover panel and I took his word he was closing it (the access panel). I failed to check later on to see that the panel was closed and secured.

Original NASA ASRS Text

Title: A B737-200 ENG WAS REMOVED FOR PYLON DAMAGE INSPECTION AND REINSTALLED AND RETURNED TO SVC IN NON COMPLIANCE WITH A TOP WING PANEL NOT SECURED.

Narrative: DURING THE FINAL STAGES OF THE #2 ENG DROP AND REINSTALL, AS THE CREW AND I WERE PERFORMING LEAK CHKS ON THE THRUST REVERSER HYD LINES, I GAVE THE MECH ON TOP OF THE WING AN OK TO CLOSE THE COVER PANEL AND I TOOK HIS WORD HE WAS CLOSING IT (THE ACCESS PANEL). I FAILED TO CHK LATER ON TO SEE THAT THE PANEL WAS CLOSED AND SECURED.

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.