# SDR UIEA2026022600069

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2026
- Submitted: February 27, 2026
- Operation: Air carrier
- Aircraft: [N450PA](https://openairdocs.org/aircraft/N450PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30808
- Aircraft time: 103,277 hours, 17,324 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Part number: 8085501
- Part serial: 2008020853
- Condition: Inoperative
- Location: Zone 100
- 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/UIEA2026022600069

## Discrepancy

EQUIPMENT COOLING MESSAGE.  SUSPECT FLT DECK FLOW REG VALVE INOP. OPENED FLOOR PANEL AND MANUALLY MOVED VALVE TO OPEN. TRANSFER TO DMI 248403 PER MEL 21-61-13 CAT C.  R & R FD FLOW REG VALVE AS PER AMM 21-61-09 & AIPC 21-21-06. OPS AND LEAK CHK GOOD. DMI 248403 CLEARED. PLACARDS REMOVED.

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