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Air carrier ia signs off brake repair without proper check of work. Uses wrong paragraph number from maintenance manual.
| Attributes | |
| ACN | 224380 |
| Time | |
| Date | 199210 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | ground : parked ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 224380 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
As a lead ia, assigned a mechanic to bleed brakes on a large transport which came in with a log gripe of dragging brakes. Being we were short-handed, I assisted him by applying brakes while he bled them. When it came time to sign off the write-up, the mechanic assured me he followed the maintenance manual, so I offered to input the write-up into computer so he could start another job. Being I helped the mechanic by applying the brakes, I also signed write-up with other mechanic. I inadvertently input the wrong paragraph number of the maintenance manual. The aircraft was dispatched, the engines were started, the tow bar was disconnected, and the aircraft moved forward, and struck the two tractor causing damage to the aircraft. The investigation found that the lockouts were not reset after bleeding which means that the maintenance procedure was not followed. The error on my part was I input the wrong paragraph number and trusted the mechanic for following the proper procedure. Next time, I'll be sure to rechk my typing and follow up on work that I'm not fully involved with.
Original NASA ASRS Text
Title: ACR IA SIGNS OFF BRAKE REPAIR WITHOUT PROPER CHK OF WORK. USES WRONG PARAGRAPH NUMBER FROM MAINT MANUAL.
Narrative: AS A LEAD IA, ASSIGNED A MECH TO BLEED BRAKES ON A LGT WHICH CAME IN WITH A LOG GRIPE OF DRAGGING BRAKES. BEING WE WERE SHORT-HANDED, I ASSISTED HIM BY APPLYING BRAKES WHILE HE BLED THEM. WHEN IT CAME TIME TO SIGN OFF THE WRITE-UP, THE MECH ASSURED ME HE FOLLOWED THE MAINT MANUAL, SO I OFFERED TO INPUT THE WRITE-UP INTO COMPUTER SO HE COULD START ANOTHER JOB. BEING I HELPED THE MECH BY APPLYING THE BRAKES, I ALSO SIGNED WRITE-UP WITH OTHER MECH. I INADVERTENTLY INPUT THE WRONG PARAGRAPH NUMBER OF THE MAINT MANUAL. THE ACFT WAS DISPATCHED, THE ENGS WERE STARTED, THE TOW BAR WAS DISCONNECTED, AND THE ACFT MOVED FORWARD, AND STRUCK THE TWO TRACTOR CAUSING DAMAGE TO THE ACFT. THE INVESTIGATION FOUND THAT THE LOCKOUTS WERE NOT RESET AFTER BLEEDING WHICH MEANS THAT THE MAINT PROC WAS NOT FOLLOWED. THE ERROR ON MY PART WAS I INPUT THE WRONG PARAGRAPH NUMBER AND TRUSTED THE MECH FOR FOLLOWING THE PROPER PROC. NEXT TIME, I'LL BE SURE TO RECHK MY TYPING AND FOLLOW UP ON WORK THAT I'M NOT FULLY INVOLVED WITH.
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.