# SDR IPXA2026080363951

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2026
- Submitted: August 3, 2026
- Operation: Air carrier
- Aircraft: [N630UP](https://openairdocs.org/aircraft/N630UP), registered now
- Make and model: Boeing 747-8F
- Registry model: [Boeing 747-8F](https://openairdocs.org/model/boeing-747-8f) (OpenAirDocs)
- Aircraft serial: 65777
- Aircraft time: 19,153 hours, 2,867 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Engine
- Part number: 6797A010001
- Part serial: 679700859
- Condition: Warning Message
- Location: Nr 4
- Stage of operation: CL
- 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/IPXA2026080363951

## Discrepancy

AIR TURN BACK,  BLEED 4 ON TAKEOFF AT APPROX 120KTS REPLACED ENG #4 HPSOV IAW. AMM: 36-11-05/401 REV.51 OPS CHECK AND LEAK CHECK SATIS. NO FAULTS. A/C SERVICEABLE. PART BOOKED UNDER BARCODE €ŒT3F18E009A1GA€? FOR TECH ALERT 36007. PN OFF/ON: 6797A010001 SN OFF: 6797-00859 SN ON: 6797-00796 DMP REVERSED. PLACARD REMOVED. DMI 2884849 CLOSED. CONFIRMED ALL TOOLS AND PARTS REMOVED FROM A/C. Q9DY421Y CRN98640877

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