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Reporter states ambiguous task card wording is causing unnecessary delays during preflight of the brake accumulator pressure during the parking brake checks.
| Attributes | |
| ACN | 1715824 |
| Time | |
| Date | 201912 |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Parking Brake |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural MEL Deviation - Procedural Published Material / Policy Deviation - Procedural Maintenance |
Narrative:
Losa observation noticed the following:due to numerous complaints and delays due to the language in this section (3;a;9) hydraulic quantity check; brake accumulator 2800 psi; we are asking for further instructions and/or explanations (notes) inserted into this section of the check.we ask for 3 items to be reviewed at a minimum:1. How do you want technicians to setup and/or check for the pressure to be 2800 psi. (Note: if system B is turned off and flight crew sets the parking brake; accumulator pressure will be below 2800 psi; to the laymen; under this check; as it is written; it would fail!)2.if it does fail; how do you want us to proceed. I.e. A parking brake hold check per 32-xx-xx-XXX-XXX?3. Furthermore; if it does fail the parking brake hold check; shall we service the accumulator per a specific amm reference? We also would like MEL relief so as to not inconvenience our passengers. We would like to be given an opportunity to fix it at the next available maintenance opportunity!
Original NASA ASRS Text
Title: Reporter states ambiguous task card wording is causing unnecessary delays during preflight of the brake accumulator pressure during the parking brake checks.
Narrative: LOSA OBSERVATION NOTICED THE FOLLOWING:Due to numerous complaints and delays due to the language in this section (3;A;9) Hydraulic Quantity Check; Brake Accumulator 2800 PSI; We are asking for further instructions and/or explanations (Notes) inserted into this section of the check.We ask for 3 items to be reviewed at a minimum:1. How do you want technicians to setup and/or check for the pressure to be 2800 PSI. (Note: If System B is turned off and flight crew sets the parking brake; accumulator pressure will be below 2800 PSI; to the laymen; under this check; as it is written; it would fail!)2.If it does fail; How do you want us to proceed. I.E. a Parking Brake Hold check per 32-XX-XX-XXX-XXX?3. Furthermore; If it does fail the parking brake hold check; Shall we service the accumulator per a specific AMM reference? We also would like MEL relief so as to not inconvenience our passengers. We would like to be given an opportunity to fix it at the next available maintenance opportunity!
Data retrieved from NASA's ASRS site 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.