# SDR ABXA20241204242

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2024
- Submitted: December 5, 2024
- Operation: Air carrier
- Aircraft: [N1489A](https://openairdocs.org/aircraft/N1489A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 27206
- Aircraft time: 116,484 hours, 24,293 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 7998014
- Part serial: 9904031
- Condition: Malfunctioned
- Location: Zone 500
- Part time: 39 hours, 17 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20241204242

## Discrepancy

DURING DE-ICE BOTH L & R PACKS & L & R ENGINE BLEEDS OFF. L ENG BLEED DID NOT DISPLAY "OFF" NOR WAS A "L ENG BLEED OFF" EICAS MSG DISPLAYED .AC RETURNED TO THE GATE (BTB) AND MTX GROUNDED AC . TROUBLESHOT AND REMOVED AND REPLACED L/H ENG PRSOV IAW AMM 36-11-09. ALL OPS CHECKS NORMAL. ALL INDICATIONS NORMAL. NO LEAKS NOTED AT THIS TIME. A/C REMAINS NO ETOPS. AND AC WAS RETURNED TO SERVICE

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