A DC9-30 had an incorrect reverser installed in #1 position during engine change.

Attributes
ACN	350663
Time
Date	199610
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	DC-9 30
Operating Under FAR Part	Part 121
Flight Phase	other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	350663
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	350680
Events
Anomaly	aircraft equipment problem : less severe non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

In sum: on oct/bb/96 the power plant final assembly shop inadvertently installed the wrong type thrust reverser on engine #ZZZ, a JT8D-7 engine type. The engine was later installed on a DC9-30 in the #1 position and released for passenger service. This incorrect reverser should have been installed on a JT8-9 engine only. The part number error occurred just prior to the reverser installation on the engine core. The engine was needed and the work was expedited which contributed to the incident. The aircraft was later routed back to abc and the #1 engine was changed.

Original NASA ASRS Text

Title: A DC9-30 HAD AN INCORRECT REVERSER INSTALLED IN #1 POS DURING ENG CHANGE.

Narrative: IN SUM: ON OCT/BB/96 THE PWR PLANT FINAL ASSEMBLY SHOP INADVERTENTLY INSTALLED THE WRONG TYPE THRUST REVERSER ON ENG #ZZZ, A JT8D-7 ENG TYPE. THE ENG WAS LATER INSTALLED ON A DC9-30 IN THE #1 POS AND RELEASED FOR PAX SVC. THIS INCORRECT REVERSER SHOULD HAVE BEEN INSTALLED ON A JT8-9 ENG ONLY. THE PART NUMBER ERROR OCCURRED JUST PRIOR TO THE REVERSER INSTALLATION ON THE ENG CORE. THE ENG WAS NEEDED AND THE WORK WAS EXPEDITED WHICH CONTRIBUTED TO THE INCIDENT. THE ACFT WAS LATER ROUTED BACK TO ABC AND THE #1 ENG WAS CHANGED.

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.