After replacing the #2 inertial reference unit (IRU); mechanic forgets to include the completed oper...

Attributes
ACN	809050
Time
Date	200810
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tower : rbd.tower
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	809050
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation 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 : briefing performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

While working overtime on graveyard shift; I was issued a work package for aircraft with a maintenance check. Included was a write-up to replace the #2 IRU. I replaced the #2 IRU per the maintenance manual and performed all the required maintenance manual operations checks; the HUD maintenance manual operations checks; as well as the functional tasks that are required on the maintenance task. At that point; I continued on with other maintenance task scheduled on the aircraft. After all scheduled maintenance had been completed; I went to finalize the paperwork and inadvertently neglected to include the maintenance task paperwork with the work package and as a result of this; the aircraft was not recertified to CAT III status and a verification number was not obtained. Also; the aircraft was not downgraded to CAT I status. Maintenance control was notified and they informed me that they would downgrade the aircraft to CAT I in XXX when it landed and upgrade the aircraft to CAT III status in YYY. I feel that this situation could be greatly reduced if planning would issue a mt paperwork with any scheduled component change that is a CAT III item.

Original NASA ASRS Text

Title: AFTER REPLACING THE #2 INERTIAL REFERENCE UNIT (IRU); MECHANIC FORGETS TO INCLUDE THE COMPLETED OPERATIONAL CHECK PAPERWORK IN THE WORK PACKAGE. AS A RESULT; THE B737-300 CATEGORY-3 STATUS WAS NOT RECERTIFIED NOR DOWNGRADED AS REQUIRED.

Narrative: WHILE WORKING OVERTIME ON GRAVEYARD SHIFT; I WAS ISSUED A WORK PACKAGE FOR ACFT WITH A MAINT CHK. INCLUDED WAS A WRITE-UP TO REPLACE THE #2 IRU. I REPLACED THE #2 IRU PER THE MAINT MANUAL AND PERFORMED ALL THE REQUIRED MAINT MANUAL OPS CHKS; THE HUD MAINT MANUAL OPS CHKS; AS WELL AS THE FUNCTIONAL TASKS THAT ARE REQUIRED ON THE MAINT TASK. AT THAT POINT; I CONTINUED ON WITH OTHER MAINT TASK SCHEDULED ON THE ACFT. AFTER ALL SCHEDULED MAINT HAD BEEN COMPLETED; I WENT TO FINALIZE THE PAPERWORK AND INADVERTENTLY NEGLECTED TO INCLUDE THE MAINT TASK PAPERWORK WITH THE WORK PACKAGE AND AS A RESULT OF THIS; THE ACFT WAS NOT RECERTIFIED TO CAT III STATUS AND A VERIFICATION NUMBER WAS NOT OBTAINED. ALSO; THE ACFT WAS NOT DOWNGRADED TO CAT I STATUS. MAINT CTL WAS NOTIFIED AND THEY INFORMED ME THAT THEY WOULD DOWNGRADE THE ACFT TO CAT I IN XXX WHEN IT LANDED AND UPGRADE THE ACFT TO CAT III STATUS IN YYY. I FEEL THAT THIS SITUATION COULD BE GREATLY REDUCED IF PLANNING WOULD ISSUE A MT PAPERWORK WITH ANY SCHEDULED COMPONENT CHANGE THAT IS A CAT III ITEM.

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 replacing the #2 inertial reference unit (IRU); mechanic forgets to include the completed operational check paperwork in the work package. As a result; the B737-300 category-3 status was not recertified nor downgraded as required.