 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A maintenance controller reports that MEL 24-11-1a and 24-11-1b instructions for an idg deferral on a crj-200 aircraft does not state electric hydraulic pump-3A must be operational. He also describes his efforts to have the aircraft manufacturer revise the master MEL (mmel) to help prevent other crj operators from making the same improper deferral.
| Attributes | |
| ACN | 1021955 |
| Time | |
| Date | 201207 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Minimum Equipment List (MEL) |
| Person 1 | |
| Function | Other / Unknown |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Maintenance Deviation - Procedural MEL Deviation - Procedural Published Material / Policy |
Narrative:
Deferred [# 2 engine] idg-2 per MEL 24-11-1b. Followed the MEL instructions to defer idg-2. In the next station; the new flight crew was reviewing their MEL's. The 3A hydraulic pump was previously deferred. In MEL 29-12-1 for the 3A hydraulic pump; states that both idg-1 and idg-2 have to be operative. The MEL instructions for the idg does not state that the 3A pump has to be operative. [Recommend] revision to the CL6002-B19 (crj-200) aircraft MEL 24-11-1a and 24-11-1b for the idg deferral that states that 3A hydraulic pump must operate normally to defer a left or right idg.
Original NASA ASRS Text
Title: A Maintenance Controller reports that MEL 24-11-1a and 24-11-1b instructions for an IDG deferral on a CRJ-200 aircraft does not state Electric Hydraulic Pump-3A must be operational. He also describes his efforts to have the aircraft Manufacturer revise the Master MEL (MMEL) to help prevent other CRJ Operators from making the same improper deferral.
Narrative: Deferred [# 2 Engine] IDG-2 per MEL 24-11-1b. Followed the MEL instructions to defer IDG-2. In the next station; the new Flight Crew was reviewing their MEL's. The 3A Hydraulic Pump was previously deferred. In MEL 29-12-1 for the 3A Hydraulic Pump; states that both IDG-1 and IDG-2 have to be operative. The MEL instructions for the IDG does not state that the 3A pump has to be operative. [Recommend] revision to the CL6002-B19 (CRJ-200) Aircraft MEL 24-11-1a and 24-11-1b for the IDG deferral that states that 3A Hydraulic Pump must operate normally to defer a Left or Right IDG.
Data retrieved from NASA's ASRS site as of July 2013 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.