# SDR 2000UALA00710

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 27, 2000
- Submitted: December 12, 2000
- Operation: Air carrier
- Aircraft: [N197UA](https://openairdocs.org/aircraft/N197UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 26901
- Aircraft time: 15,387 hours, 1,847 cycles
- Engine: Pwa PW4090
- System (JASC): [3242 · Brake](https://openairdocs.org/jasc/3242)
- Part: Brake
- Part number: 215152
- Part serial: 1047
- Condition: Seized
- Location: Nr 8
- Stage of operation: TO
- How discovered: O
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2000UALA00710

## Discrepancy

NR 8 BRAKE SEIZED ON TAKEOFF ROLL.  AIRCRAFT RETURNED TO BLOCKS. CREW REPORT AIRCRAFT SWERVED TO LEFT ON COMMENCEMENT OF TAKEOFF ROLL.       SUPPLEMENTAL DATA UPDATE REPLACED NR 8 SEIZED BRAKE. PRECAUTIONARY REPLACED BSCU ( BRAKE SYSTEM CONTROL UNIT)

---
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.