# SDR CALA2023101103034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2023
- Submitted: October 11, 2023
- Operation: Air carrier
- Aircraft: [N76064](https://openairdocs.org/aircraft/N76064), registered now
- Make and model: Boeing 767424ER
- Aircraft serial: 29459
- Aircraft time: 83,793 hours, 13,652 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Valve
- Part number: 8253011
- Part serial: 200010155
- Condition: Faulty
- Location: Lt Engine
- Part time: 67,343 hours, 9,777 cycles
- 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/CALA2023101103034

## Discrepancy

L ENG BLEED OFF EICAS MSG VALVE, ASSY, HI OFF 64-3611-9-0007 0155 ON 76-3611-9-0001 0683 VALVE, ASSY, HI OFF 64-3611-9-0007 0155 ON 0000 HPSOV REMOVED AS PER AMM 36-11-07-024-001-003, HPSOV INSTALLED AS PER AMM 36-11-07-424-014-003. ACCOMPLISHED AMM TASK 36-11-00-715-029-001 PNEUMATIC SYSTEM HEALTH CHECK, TEST PASSED. NO NOTED FAULTS PRESENT ON OR AFTER ENGINE POWER RUNS ACCOMPLISHED. OK TO RELEASE BACK TO SERVICE. PARTS USED: 19-3611-3-0113,QTY :1 76-3611-9-0001,QTY :1 64-3611-9-0007,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1729411 SN OFF 0155. THE TOMC CONTROLLER AND SENIOR MANAGER CONCUR THAT THE AIRCRAFT CAN BE RELEASED BACK TO SERVICE AFTER EXPERIENCING A DIVERSION OR AIR TURN BACK DUE TO A MECHANICAL REASON LOCKED BY SYSTEM. UNLOCKED ITEM TO BE CLEARED REFEANCE LOG PAGE 5965506, AIRCRAFT OK TO RELEASE BACK TO SERVICE AFTER REPAIRS ACCOMPLISHED. TOMC NOTIFED.

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