 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-400 was dispatched with 2 vortex generators missing from the right engine cowling. Both generators missing from same side in conflict with cdl.
| Attributes | |
| ACN | 657671 |
| Time | |
| Date | 200505 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : fcc technician : powerplant technician : airframe |
| Experience | maintenance avionics : 8 maintenance repairman : 2 maintenance technician : 9 |
| ASRS Report | 657671 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation maintenance problem : non compliance with mel non adherence : published procedure non adherence : far |
| Independent Detector | other other : 2 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : training performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Environmental Factor Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
2 vortex generators were noted to be missing on the #2 engine right half of engine cowling. Called maintenance control about aircraft X missing 2 of the 3 vortex generators that belong on that cowling half. Somewhere in our phone conversation; the fact that 2 vortex generators were missing got lost. The cdl states that 1 per side can be missing. My mistake was not checking for myself in the cdl book that the aircraft could be dispatched. The aircraft flew to ZZZ1 and was ferried back where ZZZ maintenance glued the new vortex generators in place. I now know not to take someone's word that an action or step can be done without seeing it in writing.
Original NASA ASRS Text
Title: A B737-400 WAS DISPATCHED WITH 2 VORTEX GENERATORS MISSING FROM THE R ENG COWLING. BOTH GENERATORS MISSING FROM SAME SIDE IN CONFLICT WITH CDL.
Narrative: 2 VORTEX GENERATORS WERE NOTED TO BE MISSING ON THE #2 ENG R HALF OF ENG COWLING. CALLED MAINT CTL ABOUT ACFT X MISSING 2 OF THE 3 VORTEX GENERATORS THAT BELONG ON THAT COWLING HALF. SOMEWHERE IN OUR PHONE CONVERSATION; THE FACT THAT 2 VORTEX GENERATORS WERE MISSING GOT LOST. THE CDL STATES THAT 1 PER SIDE CAN BE MISSING. MY MISTAKE WAS NOT CHKING FOR MYSELF IN THE CDL BOOK THAT THE ACFT COULD BE DISPATCHED. THE ACFT FLEW TO ZZZ1 AND WAS FERRIED BACK WHERE ZZZ MAINT GLUED THE NEW VORTEX GENERATORS IN PLACE. I NOW KNOW NOT TO TAKE SOMEONE'S WORD THAT AN ACTION OR STEP CAN BE DONE WITHOUT SEEING IT IN WRITING.
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.