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A B737-700 was dispatched in non compliance with the automatic speed brake system deferred as inoperative per the MEL. MEL required speed brake load alleviation to be considered inoperative. System no longer operative.
| Attributes | |
| ACN | 598981 |
| Time | |
| Date | 200311 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Weather Elements | Ice |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : multi engine |
| Experience | flight time last 90 days : 170 flight time total : 5600 flight time type : 1600 |
| ASRS Report | 598981 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 15000 flight time type : 10000 |
| ASRS Report | 598980 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : far non adherence : published procedure |
| Independent Detector | other other : person 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
| Primary Problem | Chart Or Publication |
Narrative:
While reviewing the dispatch release for flight from ZZZ, we noticed an MEL on aircraft #XXX. The MEL number 27-7 stated that, 'when deactivating the automatic-speed brake system with blended winglets installed, the speed brake load alleviation system must be considered inoperative. See MEL 27-20 speed brake load alleviation system (blended winglets).' maintenance and dispatch believed that an MEL was not required to be added to the release to cover a system that could no longer be considered operative. I read the above to say that an MEL should be annotated on the release for 27-20. This note should be clarified one way or the other.
Original NASA ASRS Text
Title: A B737-700 WAS DISPATCHED IN NON COMPLIANCE WITH THE AUTO SPD BRAKE SYS DEFERRED AS INOP PER THE MEL. MEL REQUIRED SPD BRAKE LOAD ALLEVIATION TO BE CONSIDERED INOP. SYS NO LONGER OPERATIVE.
Narrative: WHILE REVIEWING THE DISPATCH RELEASE FOR FLT FROM ZZZ, WE NOTICED AN MEL ON ACFT #XXX. THE MEL NUMBER 27-7 STATED THAT, 'WHEN DEACTIVATING THE AUTO-SPD BRAKE SYS WITH BLENDED WINGLETS INSTALLED, THE SPD BRAKE LOAD ALLEVIATION SYS MUST BE CONSIDERED INOP. SEE MEL 27-20 SPD BRAKE LOAD ALLEVIATION SYS (BLENDED WINGLETS).' MAINT AND DISPATCH BELIEVED THAT AN MEL WAS NOT REQUIRED TO BE ADDED TO THE RELEASE TO COVER A SYS THAT COULD NO LONGER BE CONSIDERED OPERATIVE. I READ THE ABOVE TO SAY THAT AN MEL SHOULD BE ANNOTATED ON THE RELEASE FOR 27-20. THIS NOTE SHOULD BE CLARIFIED ONE WAY OR THE OTHER.
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.