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A B737-300 was dispatched in non compliance with the elevator tab bolt nuts not replaced per the airworthiness directive due to a publication deficiency.
| Attributes | |
| ACN | 549976 |
| Time | |
| Date | 200206 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 549976 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 550330 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure non adherence : company policies |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : work cards contributing factor : manuals performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Chart Or Publication Aircraft Maintenance Human Performance |
| Primary Problem | Chart Or Publication |
Narrative:
We installed a new tab on aircraft XXX in ZZZ, us. We changed it because the aircraft came back with bad vibration. The new tab was installed per the aircraft maintenance manual with parts ordered from the ipc. We installed 3 old bolts after we inspected each for condition and one new one (bolt, nut, and washers) as well as new keys from the ipc. We then did the airworthiness direction section 1.11111-55 on both l-hand and r-hand tabs, never removing the nut from the bolt. All checked good as per the airworthiness directive and all parts were retorqued as per airworthiness direction section 1.11111-55 page 34 step 16 (which calls out the nut from the ipc and not the note). In my view, we did not do anything wrong and we turned out a good and safe product.
Original NASA ASRS Text
Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH THE ELEVATOR TAB BOLT NUTS NOT REPLACED PER THE AIRWORTHINESS DIRECTIVE DUE TO A PUB DEFICIENCY.
Narrative: WE INSTALLED A NEW TAB ON ACFT XXX IN ZZZ, US. WE CHANGED IT BECAUSE THE ACFT CAME BACK WITH BAD VIBRATION. THE NEW TAB WAS INSTALLED PER THE ACFT MAINT MANUAL WITH PARTS ORDERED FROM THE IPC. WE INSTALLED 3 OLD BOLTS AFTER WE INSPECTED EACH FOR CONDITION AND ONE NEW ONE (BOLT, NUT, AND WASHERS) AS WELL AS NEW KEYS FROM THE IPC. WE THEN DID THE AIRWORTHINESS DIRECTION SECTION 1.11111-55 ON BOTH L-HAND AND R-HAND TABS, NEVER REMOVING THE NUT FROM THE BOLT. ALL CHKED GOOD AS PER THE AIRWORTHINESS DIRECTIVE AND ALL PARTS WERE RETORQUED AS PER AIRWORTHINESS DIRECTION SECTION 1.11111-55 PAGE 34 STEP 16 (WHICH CALLS OUT THE NUT FROM THE IPC AND NOT THE NOTE). IN MY VIEW, WE DID NOT DO ANYTHING WRONG AND WE TURNED OUT A GOOD AND SAFE PRODUCT.
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.