An engine shop repairman reports improper cleaning of engine bearings and bearing housings in an alk...

Attributes
ACN	611205
Time
Date	200403
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
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	611205
Person 2
Affiliation	company : air carrier
Function	maintenance : lead technician
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far non adherence : company policies
Independent Detector	other other : person 1
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : engineering procedure performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Chart Or Publication
Primary Problem	Maintenance Human Performance

Narrative:

I moved a rack over to be cleaned in the alkaline tank and put the front hub assemblies on the rack. Received the shop orders and started loading the baskets. I was talking to a co-worker and put the front bearing assemblies in the basket, looked at everything and put in the tank. Did not start foam right away. Walked away for about 5 mins, came back and noticed it was foaming. Immediately removed parts. Notified crew chief.

Original NASA ASRS Text

Title: AN ENG SHOP REPAIRMAN RPTS IMPROPER CLEANING OF ENG BEARINGS AND BEARING HOUSINGS IN AN ALKALINE TANK.

Narrative: I MOVED A RACK OVER TO BE CLEANED IN THE ALKALINE TANK AND PUT THE FRONT HUB ASSEMBLIES ON THE RACK. RECEIVED THE SHOP ORDERS AND STARTED LOADING THE BASKETS. I WAS TALKING TO A CO-WORKER AND PUT THE FRONT BEARING ASSEMBLIES IN THE BASKET, LOOKED AT EVERYTHING AND PUT IN THE TANK. DID NOT START FOAM RIGHT AWAY. WALKED AWAY FOR ABOUT 5 MINS, CAME BACK AND NOTICED IT WAS FOAMING. IMMEDIATELY REMOVED PARTS. NOTIFIED CREW CHIEF.

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.

An engine shop repairman reports improper cleaning of engine bearings and bearing housings in an alkaline tank.