# SDR 2002F00280

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2001
- Submitted: March 15, 2002
- Operation: Air carrier
- Aircraft: N760AT
- Make and model: Boeing 727-2B7
- Registry model: [Boeing 727-2B7](https://openairdocs.org/model/boeing-727-2b7) (OpenAirDocs)
- Aircraft serial: 21954
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Valve
- Part number: 713005009
- Condition: Malfunctioned
- Location: Rt Brake Assy
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002F00280

## Discrepancy

DURING LANDING, THE RIGHT BRAKE WAS INEFFECTIVE FOR SEVERAL APPLICATIONS, THEN PEDAL PRESSURE INCREASE AND THEN BECAME SPONGY.  REPLACED NR 4 BRAKE LOCKOUT DEBOOST VALVE IAW MM 33-41-21.  OPS CHECKED NORMAL, AIRCRAFT OK FOR SERVICE.  (M)

---
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.