# SDR YENA20121221685

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2012
- Submitted: December 26, 2012
- Operation: Air carrier
- Aircraft: [N632JB](https://openairdocs.org/aircraft/N632JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 2647
- Aircraft time: 28,072 hours, 9,859 cycles
- System (JASC): [3242 · Brake](https://openairdocs.org/jasc/3242)
- Part: Safety Valve
- Part number: C252430022
- Part serial: H16776
- Condition: Failed
- Location: Brake System
- Part time: 6,405 hours, 2,271 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA20121221685

## Discrepancy

FLT 390 MCO-LGA, CREW DECLARED EMERGENCY AND AIRCRAFT DIVERTED TO JFK DUE TO BRAKES HOT ECAM ILLUMINATED.  ON TAKEOFF AT ROTATION THE LEFT BRAKES WERE SHOWING 125C WHEN CLEARED FOR TAKEOFF AND SPIKE TO 300C INSTANTANEOUSLY ON ROTATION.  BRAKE TEMPS WERE NORMAL ON LANDING ROLLOUT.  REMOVED AND REPLACED SAFETY VALVE IAW MM 32-42-36.  OPS CHECK GOOD.

---
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.