# SDR AALA20150120006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2015
- Submitted: January 22, 2015
- Operation: Air carrier
- Aircraft: [N799AN](https://openairdocs.org/aircraft/N799AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30258
- Aircraft time: 55,775 hours, 7,123 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Condition: Deactivated
- Location: Bleed Air Sys
- Stage of operation: CR
- 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/AALA20150120006

## Discrepancy

AIR INTERRUPT, DIVERTED & EMER DECLARED.  LANDING UNEVENTFUL & ACFT OVERWEIGHT.  DURING CRUISE THE RT BLEED VLV INOPERATIVE LIGHT ILLUMINATED.  UPON INSPECTION THE RT PRSOV WAS FOUND DEACTIVATED & THE RT HPSOV ACTIVATED WITH MEL36-3A APPLIED.  DEACTIVATED THE RT HPSOV IAW MEL36-3A, REACTIVATED THE RT PRSOV.  PERFORMED THE ENG AIR SUPPLY VLV OPERATIONAL TEST IAW AMM 36-10-00-700-802.  SYS CHECKED NORMAL.

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