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MD90 incorrectly dispatched with an automatic spoiler problem deferred by maintenance control. The equipment problem was not assessed properly. Aircraft recalled for maintenance action. 'Box' was changed and circuit breakers reset. Problem still existed after landing at destination airport. Aircraft new to airline.
| Attributes | |
| ACN | 379640 |
| Time | |
| Date | 199709 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : slc |
| State Reference | UT |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-90 Series (DC-9-90) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : takeoff cruise other ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 300 |
| ASRS Report | 379640 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 6500 flight time type : 210 |
| ASRS Report | 379437 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
After landing in slc, an autospoiler fault light illuminated on the overhead annunciator panel. The fault was written up and maintenance then elected to defer the item. After looking up the problem in the MEL, a performance penalty was noted. The dispatcher was then contacted and asked about the legality of operating into sna with this problem. The dispatcher said aircraft could be operated into sna. Plane then departed for sna. A message was received in-flight to return to slc, because there was apparently a misunderstanding between maintenance and the dispatcher as to what the real problem was and the proper performance penalty was not applied initially. Therefore, the aircraft was overweight for landing in sna. The problem was a repeat write-up, and could be corrected by following the procedures in the book, which consisted of resetting circuit breakers for the system. The problem was fixed in slc and redispatched for sna. Supplemental information from acn 379437: problem returned after clearing runway. Was ok for landing. Fixed with box change. We couldn't find sna in airport section of aircraft restrs manual. Return decided because of legalities and safety considerations.
Original NASA ASRS Text
Title: MD90 INCORRECTLY DISPATCHED WITH AN AUTO SPOILER PROB DEFERRED BY MAINT CTL. THE EQUIP PROB WAS NOT ASSESSED PROPERLY. ACFT RECALLED FOR MAINT ACTION. 'BOX' WAS CHANGED AND CIRCUIT BREAKERS RESET. PROB STILL EXISTED AFTER LNDG AT DEST ARPT. ACFT NEW TO AIRLINE.
Narrative: AFTER LNDG IN SLC, AN AUTOSPOILER FAULT LIGHT ILLUMINATED ON THE OVERHEAD ANNUNCIATOR PANEL. THE FAULT WAS WRITTEN UP AND MAINT THEN ELECTED TO DEFER THE ITEM. AFTER LOOKING UP THE PROB IN THE MEL, A PERFORMANCE PENALTY WAS NOTED. THE DISPATCHER WAS THEN CONTACTED AND ASKED ABOUT THE LEGALITY OF OPERATING INTO SNA WITH THIS PROB. THE DISPATCHER SAID ACFT COULD BE OPERATED INTO SNA. PLANE THEN DEPARTED FOR SNA. A MESSAGE WAS RECEIVED INFLT TO RETURN TO SLC, BECAUSE THERE WAS APPARENTLY A MISUNDERSTANDING BTWN MAINT AND THE DISPATCHER AS TO WHAT THE REAL PROB WAS AND THE PROPER PERFORMANCE PENALTY WAS NOT APPLIED INITIALLY. THEREFORE, THE ACFT WAS OVERWT FOR LNDG IN SNA. THE PROB WAS A REPEAT WRITE-UP, AND COULD BE CORRECTED BY FOLLOWING THE PROCS IN THE BOOK, WHICH CONSISTED OF RESETTING CIRCUIT BREAKERS FOR THE SYS. THE PROB WAS FIXED IN SLC AND REDISPATCHED FOR SNA. SUPPLEMENTAL INFO FROM ACN 379437: PROB RETURNED AFTER CLRING RWY. WAS OK FOR LNDG. FIXED WITH BOX CHANGE. WE COULDN'T FIND SNA IN ARPT SECTION OF ACFT RESTRS MANUAL. RETURN DECIDED BECAUSE OF LEGALITIES AND SAFETY CONSIDERATIONS.
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.