A B737-300 returned to the field due to loss of an engine pylon panel, caused by incorrect installat...

Attributes
ACN	526661
Time
Date	200110
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
ASRS Report	526661
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : installation
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

I am not sure what type of maintenance error occurred. I thought I installed the panel correctly. Pylon panel came off.

Original NASA ASRS Text

Title: A B737-300 RETURNED TO THE FIELD DUE TO LOSS OF AN ENG PYLON PANEL, CAUSED BY INCORRECT INSTALLATION.

Narrative: I AM NOT SURE WHAT TYPE OF MAINT ERROR OCCURRED. I THOUGHT I INSTALLED THE PANEL CORRECTLY. PYLON PANEL CAME OFF.

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.

A B737-300 returned to the field due to loss of an engine pylon panel, caused by incorrect installation.