After a qec of a ge-CF34 engine; on a cl-600 (crj-700); mechanic realizes an aluminum cap was still ...

Attributes
ACN	804310
Time
Date	200809
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	Regional Jet 700 ER&LR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	804310
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	other other : 1
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : work cards contributing factor : briefing performance deficiency : scheduled maintenance performance deficiency : installation performance deficiency : inspection performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Chart Or Publication Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

Improper part; realization of incorrect cap installed on accessory gear box (agb) of engine reported to supervisor. Supervisor informed gate maintenance to inquire about location of aircraft X. It was at the gate and ready to depart. Supervisor made arrangements with gate maintenance for engine shop to fix the problem prior to aircraft departure. Problem fixed and aircraft departed on time with no delays. During qec of the engine for aircraft X which was aog; the incorrect cap was not discovered during our inspection and/or the receiving inspections by our inspection department. Callback conversation with reporter revealed the following information: reporter stated there are other aluminum caps installed on their ge-CF34 engines which are color coded blue. But the oil cap on the accessory gear box is stainless steel and not color coded. Reporter stated the vendor has shipped these engines with the blue aluminum caps installed. He has also seen plastic caps where the stainless steel type should be. Reporter stated his carrier has added a maintenance item to their maintenance task cards to specifically check for correct cap installation; especially during engine changes.

Original NASA ASRS Text

Title: AFTER A QEC OF A GE-CF34 ENGINE; ON A CL-600 (CRJ-700); MECHANIC REALIZES AN ALUMINUM CAP WAS STILL INSTALLED ON THE ACCESSORY GEAR BOX (AGB); INSTEAD OF THE REQUIRED STAINLESS STEEL TYPE.

Narrative: IMPROPER PART; REALIZATION OF INCORRECT CAP INSTALLED ON ACCESSORY GEAR BOX (AGB) OF ENG RPTED TO SUPVR. SUPVR INFORMED GATE MAINT TO INQUIRE ABOUT LOCATION OF ACFT X. IT WAS AT THE GATE AND READY TO DEPART. SUPVR MADE ARRANGEMENTS WITH GATE MAINT FOR ENG SHOP TO FIX THE PROB PRIOR TO ACFT DEP. PROB FIXED AND ACFT DEPARTED ON TIME WITH NO DELAYS. DURING QEC OF THE ENG FOR ACFT X WHICH WAS AOG; THE INCORRECT CAP WAS NOT DISCOVERED DURING OUR INSPECTION AND/OR THE RECEIVING INSPECTIONS BY OUR INSPECTION DEPT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: REPORTER STATED THERE ARE OTHER ALUMINUM CAPS INSTALLED ON THEIR GE-CF34 ENGINES WHICH ARE COLOR CODED BLUE. BUT THE OIL CAP ON THE ACCESSORY GEAR BOX IS STAINLESS STEEL AND NOT COLOR CODED. REPORTER STATED THE VENDOR HAS SHIPPED THESE ENGINES WITH THE BLUE ALUMINUM CAPS INSTALLED. HE HAS ALSO SEEN PLASTIC CAPS WHERE THE STAINLESS STEEL TYPE SHOULD BE. REPORTER STATED HIS CARRIER HAS ADDED A MAINT ITEM TO THEIR MAINT TASK CARDS TO SPECIFICALLY CHECK FOR CORRECT CAP INSTALLATION; ESPECIALLY DURING ENGINE CHANGES.

Data retrieved from NASA's ASRS site as of May 2009 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.

After a qec of a ge-CF34 engine; on a cl-600 (crj-700); mechanic realizes an aluminum cap was still installed on the accessory gear box (agb); instead of the required stainless steel type.