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A B737-300 was dispatched in non compliance with a cracked #4 cockpit eyebrow window per the MEL but the cracked pane was not positively idented.
| Attributes | |
| ACN | 542353 |
| Time | |
| Date | 200203 |
| Day | Tue |
| 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 | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| ASRS Report | 542353 |
| Person 2 | |
| Affiliation | other |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : far non adherence : published procedure |
| Independent Detector | other other : person 2 |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : schedule pressure performance deficiency : unqualified personnel performance deficiency : logbook entry performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft called in range and reported an R4 window cracked. Contract maintenance was called and window was placed on maintenance note that the inner vinyl liner was cracked rather than the inner pane. Aircraft was dispatched on a flight to ZZZ and where maintenance said that it was the inner pane. The window was immediately changed in ZZZ. Callback conversation with reporter revealed the following information: the reporter stated a contract technician was sent the paperwork to identify the cracked pane to determine if the window could be deferred. The reporter said the contract technician idented the pane as the inner vinyl pane cracked. The reporter stated the window was deferred as this pane was not structural. The reporter said the next station had company technicians and the window was checked again but this time reported the structural vinyl pane was cracked. The reporter said having inaccurate and confusing information on the window condition. The window was ordered to be replaced.
Original NASA ASRS Text
Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH A CRACKED #4 COCKPIT EYEBROW WINDOW PER THE MEL BUT THE CRACKED PANE WAS NOT POSITIVELY IDENTED.
Narrative: ACFT CALLED IN RANGE AND RPTED AN R4 WINDOW CRACKED. CONTRACT MAINT WAS CALLED AND WINDOW WAS PLACED ON MAINT NOTE THAT THE INNER VINYL LINER WAS CRACKED RATHER THAN THE INNER PANE. ACFT WAS DISPATCHED ON A FLT TO ZZZ AND WHERE MAINT SAID THAT IT WAS THE INNER PANE. THE WINDOW WAS IMMEDIATELY CHANGED IN ZZZ. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED A CONTRACT TECHNICIAN WAS SENT THE PAPERWORK TO IDENT THE CRACKED PANE TO DETERMINE IF THE WINDOW COULD BE DEFERRED. THE RPTR SAID THE CONTRACT TECHNICIAN IDENTED THE PANE AS THE INNER VINYL PANE CRACKED. THE RPTR STATED THE WINDOW WAS DEFERRED AS THIS PANE WAS NOT STRUCTURAL. THE RPTR SAID THE NEXT STATION HAD COMPANY TECHNICIANS AND THE WINDOW WAS CHKED AGAIN BUT THIS TIME RPTED THE STRUCTURAL VINYL PANE WAS CRACKED. THE RPTR SAID HAVING INACCURATE AND CONFUSING INFO ON THE WINDOW CONDITION. THE WINDOW WAS ORDERED TO BE REPLACED.
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.