# SDR UIEA2026063000563

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2026
- Submitted: July 8, 2026
- Operation: Air carrier
- Aircraft: [N453PA](https://openairdocs.org/aircraft/N453PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30811
- Aircraft time: 99,336 hours, 17,225 cycles
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Impeller
- Part number: 60721015
- Part serial: 08995308P
- Condition: Damaged
- Location: Fuel Pump
- 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/UIEA2026063000563

## Discrepancy

FUEL IMBALANCE 2 - 3  STATUS MESSAGE.  ACCOMPLISHED FIM 28-22 TASK 925, NO FINDING. TANK DIVE ACCOMPLISHED, FOUND A JET LEAK FROM OVRD PUMP DISCH CHECK VLV. R/R DISCHARGE CHECK VALVE PER AMM 28-31-11/401, CHECK OK. FURTHER T/S NEEDED. DETAILS ARE LISTED LP 2098429 M9.LP 2098429 M9: DUE TO HISTORY, PRECAUTIONARY REMOVED & REPLACED BOOST PUMP DISCH CHECK VALVE AT RT INBD AFT & FWD IAW AMM 28-22-19/401 & AIPC 28-22-54-01 ITEM 642. OPS CHK OK. FOUND RT INBD FWD & AFT OVRD/JETTISON PUMP IMPELLER DAMAGED & SEPARATED. REMOVED & REPLACED OVRD/JETT PUMP IAW AMM 28-31-01/401 CONFIG 1 & IPC 28-31-05-50, ITEM 6. OPS CHK OK.

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