 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-300 with #2 engine power management control deferred as inoperative is operated in-flight and logbook reports operation ok. Maintenance clears the deferred item using the logbook for reference in violation of far.
| Attributes | |
| ACN | 457460 |
| Time | |
| Date | 199912 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : multi engine |
| Experience | flight time last 90 days : 120 flight time total : 15000 flight time type : 11000 |
| ASRS Report | 457460 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft had a deferred #2 power management control inoperative per MEL. During cruise, I turned on the #2 power management control to verify and analyze the status of the inoperative light, button, and power management control. No faults or erratic engine operations were observed. After arriving at a company maintenance base, the observations of the #2 power maintenance control/engine parameters were explained to maintenance personnel. Maintenance elected to clear the deferral from the log. The air crew had no supporting document in either the MEL, QRH, or maintenance write-up, which in my opinion prohibited the analysis of the aircraft's status (#2 power management control).
Original NASA ASRS Text
Title: A B737-300 WITH #2 ENG PWR MGMNT CTL DEFERRED AS INOP IS OPERATED INFLT AND LOGBOOK RPTS OP OK. MAINT CLRS THE DEFERRED ITEM USING THE LOGBOOK FOR REF IN VIOLATION OF FAR.
Narrative: ACFT HAD A DEFERRED #2 PWR MGMNT CTL INOP PER MEL. DURING CRUISE, I TURNED ON THE #2 PWR MGMNT CTL TO VERIFY AND ANALYZE THE STATUS OF THE INOP LIGHT, BUTTON, AND PWR MGMNT CTL. NO FAULTS OR ERRATIC ENG OPS WERE OBSERVED. AFTER ARRIVING AT A COMPANY MAINT BASE, THE OBSERVATIONS OF THE #2 PWR MAINT CTL/ENG PARAMETERS WERE EXPLAINED TO MAINT PERSONNEL. MAINT ELECTED TO CLR THE DEFERRAL FROM THE LOG. THE AIR CREW HAD NO SUPPORTING DOCUMENT IN EITHER THE MEL, QRH, OR MAINT WRITE-UP, WHICH IN MY OPINION PROHIBITED THE ANALYSIS OF THE ACFT'S STATUS (#2 PWR MGMNT CTL).
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.