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A B737-500, while being pushed out of the hangar for engine run, the nose steering cables snapped. Found nose steering cable blocks still attached.
| Attributes | |
| ACN | 627705 |
| Time | |
| Date | 200408 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 627705 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| ASRS Report | 627706 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance 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 other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : tooling performance deficiency : scheduled maintenance performance deficiency : installation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Chart Or Publication Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
While starting 1/3 life inspection (life limited part inspection) on the nose gear, I received information that the 1/3 life inspection had been done in may. Engineering brought down an eo (engineering order) just to replace the torque links then rechk the play to see if it was in limits. If not then we would do the 1/3 life. We replaced the torque links and did the free play check. It was in limits. I don't recall putting the cable block on the nose steering cables for the 1/3 life. At the end of the 'qd' check, we were pushing the aircraft out to do run check on the engines, when the nose steering cable snapped. We brought the aircraft back into the hangar, and found a cable block on the cables in the nose wheelwell.
Original NASA ASRS Text
Title: A B737-500, WHILE BEING PUSHED OUT OF THE HANGAR FOR ENG RUN, THE NOSE STEERING CABLES SNAPPED. FOUND NOSE STEERING CABLE BLOCKS STILL ATTACHED.
Narrative: WHILE STARTING 1/3 LIFE INSPECTION (LIFE LIMITED PART INSPECTION) ON THE NOSE GEAR, I RECEIVED INFO THAT THE 1/3 LIFE INSPECTION HAD BEEN DONE IN MAY. ENGINEERING BROUGHT DOWN AN EO (ENGINEERING ORDER) JUST TO REPLACE THE TORQUE LINKS THEN RECHK THE PLAY TO SEE IF IT WAS IN LIMITS. IF NOT THEN WE WOULD DO THE 1/3 LIFE. WE REPLACED THE TORQUE LINKS AND DID THE FREE PLAY CHK. IT WAS IN LIMITS. I DON'T RECALL PUTTING THE CABLE BLOCK ON THE NOSE STEERING CABLES FOR THE 1/3 LIFE. AT THE END OF THE 'QD' CHK, WE WERE PUSHING THE ACFT OUT TO DO RUN CHK ON THE ENGS, WHEN THE NOSE STEERING CABLE SNAPPED. WE BROUGHT THE ACFT BACK INTO THE HANGAR, AND FOUND A CABLE BLOCK ON THE CABLES IN THE NOSE WHEELWELL.
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.