 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An A320 went to gate after an 'a' check; with the overwing emergency exits still unarmed. Maintenance supervisor had earlier signed off a duplicate work card; but failed to see the rearming procedure.
| Attributes | |
| ACN | 801911 |
| Time | |
| Date | 200808 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 801411 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | controller : separated traffic |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements performance deficiency : installation performance deficiency : testing |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
During an 'a' check; I noticed that we had 2 duplicate cards to remove the safety devices. I then got with mr X; my supervisor. We looked at the cards and decided we could sign off one to the other. After going through the cards; I agreed we could sign off the one card. I looked at each section topic on both of the cards and signed off the one card. The one card had an extra step which I did not catch. The aircraft went to the gate with the overwing emergency exits still unarmed. The safety pin was removed on the assist bottle in the cargo bin; although the safety pin on the door was not armed. On pushback the crew noticed on the ECAM that the emergency exits were not armed; went back to the gate and the line called me in base maintenance that we did not arm the door. I sent 2 mechanics and a lead to correct the problem and cleared the logbook.
Original NASA ASRS Text
Title: AN A320 WENT TO GATE AFTER AN 'A' CHECK; WITH THE OVERWING EMERGENCY EXITS STILL UNARMED. MAINT SUPERVISOR HAD EARLIER SIGNED OFF A DUPLICATE WORK CARD; BUT FAILED TO SEE THE REARMING PROCEDURE.
Narrative: DURING AN 'A' CHK; I NOTICED THAT WE HAD 2 DUPLICATE CARDS TO REMOVE THE SAFETY DEVICES. I THEN GOT WITH MR X; MY SUPVR. WE LOOKED AT THE CARDS AND DECIDED WE COULD SIGN OFF ONE TO THE OTHER. AFTER GOING THROUGH THE CARDS; I AGREED WE COULD SIGN OFF THE ONE CARD. I LOOKED AT EACH SECTION TOPIC ON BOTH OF THE CARDS AND SIGNED OFF THE ONE CARD. THE ONE CARD HAD AN EXTRA STEP WHICH I DID NOT CATCH. THE ACFT WENT TO THE GATE WITH THE OVERWING EMER EXITS STILL UNARMED. THE SAFETY PIN WAS REMOVED ON THE ASSIST BOTTLE IN THE CARGO BIN; ALTHOUGH THE SAFETY PIN ON THE DOOR WAS NOT ARMED. ON PUSHBACK THE CREW NOTICED ON THE ECAM THAT THE EMER EXITS WERE NOT ARMED; WENT BACK TO THE GATE AND THE LINE CALLED ME IN BASE MAINT THAT WE DID NOT ARM THE DOOR. I SENT 2 MECHS AND A LEAD TO CORRECT THE PROB AND CLRED THE LOGBOOK.
Data retrieved from NASA's ASRS site as of May 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.