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A B737-400 on an extended maintenance delay for removal of landing gear doors the technician forgets to enter a deferred item on lubed fuel xfeed valve.
| Attributes | |
| ACN | 632187 |
| Time | |
| Date | 200409 |
| Day | Thu |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 632187 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : published procedure non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Company Environmental Factor Flight Crew Human Performance Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft was on an extended delay. When I completed door removal and lubed xfeed valve we released boarding then while I was inspecting area, making sure everything secured, I found t-bolt loose (refer log X). So now we had passenger loaded, ramp was wanting to know if they could load the pits. Gate agents was wanting how much longer the delay was going to be. Pilot wanting to know what to tell the passenger. Line maintenance and our supervisor was wanting advise times. And I was waiting for inspection, so we could retorque t-bolt. When we completed everything I cleared write-up (refer log X). I forgot to create a deferral for lubing xfeed valve on a daily basis. (Refer log Y) when I was doing a walkaround inspection on aircraft X I noticed the right main landing gear center and inner door slip marks on the strut were moved. (Refer log X). I called maintenance control for a cdl (confign deviation list) which they authority/authorized 32-10C. As per cdl 32-10C I removed the main landing gear doors and lubed fuel xfeed valve shaft. Then when I was making sure everything in the area was secured, I noticed the t-bolt was loose (refer log Y). When inspector X arrived we torqued bolt per maintenance manual 32-11-42 3D(1). I cleared log pages then through all the confusion refer statement above I forgot to create a deferral, remove and reapply grease daily on xfeed valve shaft.
Original NASA ASRS Text
Title: A B737-400 ON AN EXTENDED MAINT DELAY FOR REMOVAL OF LNDG GEAR DOORS THE TECHNICIAN FORGETS TO ENTER A DEFERRED ITEM ON LUBED FUEL XFEED VALVE.
Narrative: ACFT WAS ON AN EXTENDED DELAY. WHEN I COMPLETED DOOR REMOVAL AND LUBED XFEED VALVE WE RELEASED BOARDING THEN WHILE I WAS INSPECTING AREA, MAKING SURE EVERYTHING SECURED, I FOUND T-BOLT LOOSE (REFER LOG X). SO NOW WE HAD PAX LOADED, RAMP WAS WANTING TO KNOW IF THEY COULD LOAD THE PITS. GATE AGENTS WAS WANTING HOW MUCH LONGER THE DELAY WAS GOING TO BE. PLT WANTING TO KNOW WHAT TO TELL THE PAX. LINE MAINT AND OUR SUPVR WAS WANTING ADVISE TIMES. AND I WAS WAITING FOR INSPECTION, SO WE COULD RETORQUE T-BOLT. WHEN WE COMPLETED EVERYTHING I CLRED WRITE-UP (REFER LOG X). I FORGOT TO CREATE A DEFERRAL FOR LUBING XFEED VALVE ON A DAILY BASIS. (REFER LOG Y) WHEN I WAS DOING A WALKAROUND INSPECTION ON ACFT X I NOTICED THE R MAIN LNDG GEAR CTR AND INNER DOOR SLIP MARKS ON THE STRUT WERE MOVED. (REFER LOG X). I CALLED MAINT CTL FOR A CDL (CONFIGN DEV LIST) WHICH THEY AUTH 32-10C. AS PER CDL 32-10C I REMOVED THE MAIN LNDG GEAR DOORS AND LUBED FUEL XFEED VALVE SHAFT. THEN WHEN I WAS MAKING SURE EVERYTHING IN THE AREA WAS SECURED, I NOTICED THE T-BOLT WAS LOOSE (REFER LOG Y). WHEN INSPECTOR X ARRIVED WE TORQUED BOLT PER MAINT MANUAL 32-11-42 3D(1). I CLRED LOG PAGES THEN THROUGH ALL THE CONFUSION REFER STATEMENT ABOVE I FORGOT TO CREATE A DEFERRAL, REMOVE AND REAPPLY GREASE DAILY ON XFEED VALVE SHAFT.
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.