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A B737-800 aircraft sustained fuselage tail damage during jacking for a rh medium large transport strut replacement.
| Attributes | |
| ACN | 741118 |
| Time | |
| Date | 200705 |
| Local Time Of Day | 0601 To 1200 |
| 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 | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 741118 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 740536 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : non availability of parts contributing factor : schedule pressure performance deficiency : repair performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
A field trip for aircraft X strut replacement. We arrived and started inspecting what we had for equipment; tools and parts. When determined that we were missing a cup for one of the wing jacks; we ordered that and some miscellaneous parts from ZZZ1. We installed the right wing jack and the tail jack in place for stability to remove the #4 brake and #3 tire and brake. We were unable to accomplish this without an axle jack; instead of waiting for the cup to come from ZZZ1 we jacked the right axle with the axle jack enough to remove the bad brakes and tire. When the cup came from ZZZ1 we installed it on the left wing jack and placed it in position under the wing. Upon setting that jack in place we went to check the other jacks to prepare them for jacking and we found that the tail jack had slipped off of the jack pad and punch a hole through the fuselage just forward and outboard of the jack pad.
Original NASA ASRS Text
Title: A B737-800 ACFT SUSTAINED FUSELAGE TAIL DAMAGE DURING JACKING FOR A RH MLG STRUT REPLACEMENT.
Narrative: A FIELD TRIP FOR ACFT X STRUT REPLACEMENT. WE ARRIVED AND STARTED INSPECTING WHAT WE HAD FOR EQUIP; TOOLS AND PARTS. WHEN DETERMINED THAT WE WERE MISSING A CUP FOR ONE OF THE WING JACKS; WE ORDERED THAT AND SOME MISC PARTS FROM ZZZ1. WE INSTALLED THE R WING JACK AND THE TAIL JACK IN PLACE FOR STABILITY TO REMOVE THE #4 BRAKE AND #3 TIRE AND BRAKE. WE WERE UNABLE TO ACCOMPLISH THIS WITHOUT AN AXLE JACK; INSTEAD OF WAITING FOR THE CUP TO COME FROM ZZZ1 WE JACKED THE R AXLE WITH THE AXLE JACK ENOUGH TO REMOVE THE BAD BRAKES AND TIRE. WHEN THE CUP CAME FROM ZZZ1 WE INSTALLED IT ON THE L WING JACK AND PLACED IT IN POS UNDER THE WING. UPON SETTING THAT JACK IN PLACE WE WENT TO CHK THE OTHER JACKS TO PREPARE THEM FOR JACKING AND WE FOUND THAT THE TAIL JACK HAD SLIPPED OFF OF THE JACK PAD AND PUNCH A HOLE THROUGH THE FUSELAGE JUST FORWARD AND OUTBOARD OF THE JACK PAD.
Data retrieved from NASA's ASRS site as of January 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.