A mechanic and inspector report on forgetting to call their maintenance control to verify parts comp...

Attributes
ACN	792746
Time
Date	200806
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tower : ric.tower
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	792746
Person 2
Affiliation	company : air carrier
Function	maintenance : inspector
ASRS Report	792747
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far
Independent Detector	other other : 1
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : briefing performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

ETOPS class aug/07 first time working ETOPS aircraft 10 months later. Changed batteries for scheduled parts change on ETOPS aircraft X. Maintenance and auxiliary batteries are a significant system. Verified battery part number per ipc. Installed batteries per maintenance manual. Accomplished battery test per maintenance manual. As this was the first ETOPS that I have worked on since ETOPS class in aug/07; I forgot to call maintenance control to verify parts compatibility. Supplemental information from acn 792747: the first ETOPS aircraft worked on; just plain forgot. I inspected 'a' main and auxiliary battery change on aircraft X and forgot to call maintenance control to relay ipc data for batteries. I verified this in the ipc myself -- just did not call maintenance control. The batteries are correct for this aircraft.

Original NASA ASRS Text

Title: A MECHANIC AND INSPECTOR REPORT ON FORGETTING TO CALL THEIR MAINT CONTROL TO VERIFY PARTS COMPATIBILITY FOR THEIR B737-800 ETOPS ACFT; AFTER THE MAIN AND AUX BATTERIES WERE CHANGED.

Narrative: ETOPS CLASS AUG/07 FIRST TIME WORKING ETOPS ACFT 10 MONTHS LATER. CHANGED BATTERIES FOR SCHEDULED PARTS CHANGE ON ETOPS ACFT X. MAINT AND AUX BATTERIES ARE A SIGNIFICANT SYS. VERIFIED BATTERY PART NUMBER PER IPC. INSTALLED BATTERIES PER MAINT MANUAL. ACCOMPLISHED BATTERY TEST PER MAINT MANUAL. AS THIS WAS THE FIRST ETOPS THAT I HAVE WORKED ON SINCE ETOPS CLASS IN AUG/07; I FORGOT TO CALL MAINT CTL TO VERIFY PARTS COMPATIBILITY. SUPPLEMENTAL INFO FROM ACN 792747: THE FIRST ETOPS ACFT WORKED ON; JUST PLAIN FORGOT. I INSPECTED 'A' MAIN AND AUX BATTERY CHANGE ON ACFT X AND FORGOT TO CALL MAINT CTL TO RELAY IPC DATA FOR BATTERIES. I VERIFIED THIS IN THE IPC MYSELF -- JUST DID NOT CALL MAINT CTL. THE BATTERIES ARE CORRECT FOR THIS ACFT.

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.

A mechanic and inspector report on forgetting to call their maintenance control to verify parts compatibility for their B737-800 ETOPS aircraft; after the main and auxiliary batteries were changed.