# SDR ASMF201204002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2012
- Submitted: April 27, 2012
- Operation: Air carrier
- Aircraft: N520AM
- Make and model: Boeing 737-81Q
- Registry model: [Boeing 737-81Q](https://openairdocs.org/model/boeing-737-81q) (OpenAirDocs)
- Aircraft serial: 29052
- Aircraft time: 34,880 hours, 12,018 cycles
- System (JASC): [3242 · Brake](https://openairdocs.org/jasc/3242)
- Part: Brake
- Part number: C20633000
- Part serial: 0775C20633
- Condition: Leaking
- Location: Mlg
- Part time: 3,442 hours, 1,772 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF201204002

## Discrepancy

DURING TRANSIT CHECK, MX PERSONNEL DETECTED A HYD LEAK AT MAIN BRAKES NUMBERS 1, 3 AND 4.  ACFT WAS SENT TO THE HANGAR AND MX PERSONNEL REPLACED MAIN BRAKES NUMBERS 1, 3 AND 4 IAW MM 32-41-41, TESTED CORRECT.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.