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MD83 alternate nosedown trim was inoperative. Maintenance deferred the item as flyable. Flight crew briefly checked the MEL-cdl book and flew the aircraft sjc-san-rno. Rno maintenance grounded the aircraft and said it was unflyable without alternate trim.
| Attributes | |
| ACN | 359438 |
| Time | |
| Date | 199702 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sjc |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | ground : parked ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 178 flight time total : 8000 flight time type : 4500 |
| ASRS Report | 359438 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | non adherence : far non adherence : published procedure |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Found alternate trim (nose down) inoperative on preflight in sjc. Our maintenance deferred the item as flyable. I briefly glanced at maintenance procedures paragraph in MEL/cdl book, read carefully 'crew procedures' and flew aircraft sjc-san-rno. Rno maintenance then grounded the aircraft and said it was unflyable without alternate trim. Corrective action: always read (very thoroughly) all parts of MEL/cdl book before accepting maintenance signoff that an aircraft is flyable.
Original NASA ASRS Text
Title: MD83 ALTERNATE NOSEDOWN TRIM WAS INOP. MAINT DEFERRED THE ITEM AS FLYABLE. FLC BRIEFLY CHKED THE MEL-CDL BOOK AND FLEW THE ACFT SJC-SAN-RNO. RNO MAINT GNDED THE ACFT AND SAID IT WAS UNFLYABLE WITHOUT ALTERNATE TRIM.
Narrative: FOUND ALTERNATE TRIM (NOSE DOWN) INOP ON PREFLT IN SJC. OUR MAINT DEFERRED THE ITEM AS FLYABLE. I BRIEFLY GLANCED AT MAINT PROCS PARAGRAPH IN MEL/CDL BOOK, READ CAREFULLY 'CREW PROCS' AND FLEW ACFT SJC-SAN-RNO. RNO MAINT THEN GNDED THE ACFT AND SAID IT WAS UNFLYABLE WITHOUT ALTERNATE TRIM. CORRECTIVE ACTION: ALWAYS READ (VERY THOROUGHLY) ALL PARTS OF MEL/CDL BOOK BEFORE ACCEPTING MAINT SIGNOFF THAT AN ACFT IS FLYABLE.
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.