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A B737-700 had a rapid decompression with passenger oxygen masks deployed. During a subsequent rapid decompression; several masks failed to deploy and required repair.
| Attributes | |
| ACN | 678309 |
| Time | |
| Date | 200511 |
| 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 | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| ASRS Report | 678309 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 678308 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Resolutory Action | none taken : detected after the fact |
| Factors | |
| Maintenance | contributing factor : work cards contributing factor : schedule pressure performance deficiency : inspection performance deficiency : installation performance deficiency : testing performance deficiency : training |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Aircraft |
Narrative:
We received a call from maintenance control that aircraft flight was coming in with an emergency depressurization and all masks deployed. We then repacked all the masks. Later; aircraft had a rapid decompression and cabin mask dropped. Rows 11D/east; 8A/B/C and aft lavatory did not deploy. To prevent this from recurring; it could be made an inspection item. Also; we could do an operations check of the door release to the door stop. Also; we could review the training video once a yr. My training date of oxygen mask packing video was more than 1 yr ago.
Original NASA ASRS Text
Title: A B737-700 HAD A RAPID DECOMPRESSION WITH PAX OXYGEN MASKS DEPLOYED. DURING A SUBSEQUENT RAPID DECOMPRESSION; SEVERAL MASKS FAILED TO DEPLOY AND REQUIRED REPAIR.
Narrative: WE RECEIVED A CALL FROM MAINT CTL THAT ACFT FLT WAS COMING IN WITH AN EMER DEPRESSURIZATION AND ALL MASKS DEPLOYED. WE THEN REPACKED ALL THE MASKS. LATER; ACFT HAD A RAPID DECOMPRESSION AND CABIN MASK DROPPED. ROWS 11D/E; 8A/B/C AND AFT LAVATORY DID NOT DEPLOY. TO PREVENT THIS FROM RECURRING; IT COULD BE MADE AN INSPECTION ITEM. ALSO; WE COULD DO AN OPS CHK OF THE DOOR RELEASE TO THE DOOR STOP. ALSO; WE COULD REVIEW THE TRAINING VIDEO ONCE A YR. MY TRAINING DATE OF OXYGEN MASK PACKING VIDEO WAS MORE THAN 1 YR AGO.
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.