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After maintenance at their originating airport declared several suspect brake wear indicators to be 'well within limits' and signed off the logbook the flight crew of an md-83 once again wrote them up as below limits at an intermediate stop and maintenance there took the aircraft out of service until the brakes could be changed; stating they were '...not well within limits.'
| Attributes | |
| ACN | 1037555 |
| Time | |
| Date | 201209 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Brake System |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural MEL Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy |
Narrative:
Following his exterior preflight the first officer notified me that the no. 2 and no. 4 brake wear indicators appeared to be at or below the limit for an md-83; but he didn't have a ruler to measure. I entered the discrepancies in the logbook and notified maintenance for a check. The maintenance technician informed us that the brake limit was 3/32 inches; not the 1/2 inch or greater as printed in our operating manual and signed off the book as 'well within limits.'during the preflight at the next station the first officer again notified me that the same brake wear indicators still appeared to be below the 1/2 inch limit for an md-83; so we again notified maintenance at and entered the discrepancies in the logbook. This time; the airplane was taken out of service because; according to the maintenance technician at this station; both brake wear indicators were indeed below the limit and both brakes would need changing. This resulted in the flight being cancelled.I suggest we need more responsible maintenance review of brake wear limits and less push to get airplanes released in any way possible.
Original NASA ASRS Text
Title: After Maintenance at their originating airport declared several suspect brake wear indicators to be 'well within limits' and signed off the logbook the flight crew of an MD-83 once again wrote them up as below limits at an intermediate stop and Maintenance there took the aircraft out of service until the brakes could be changed; stating they were '...not well within limits.'
Narrative: Following his exterior preflight the First Officer notified me that the No. 2 and No. 4 brake wear indicators appeared to be at or below the limit for an MD-83; but he didn't have a ruler to measure. I entered the discrepancies in the logbook and notified Maintenance for a check. The Maintenance Technician informed us that the brake limit was 3/32 inches; not the 1/2 inch or greater as printed in our operating manual and signed off the book as 'well within limits.'During the preflight at the next station the First Officer again notified me that the same brake wear indicators still appeared to be below the 1/2 inch limit for an MD-83; so we again notified Maintenance at and entered the discrepancies in the logbook. This time; the airplane was taken out of service because; according to the Maintenance Technician at this station; both brake wear indicators were indeed below the limit and both brakes would need changing. This resulted in the flight being cancelled.I suggest we need more responsible Maintenance review of brake wear limits and less push to get airplanes released in any way possible.
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.