# SDR W6JA20210224044

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2021
- Submitted: February 25, 2021
- Operation: Air carrier
- Aircraft: [N132JE](https://openairdocs.org/aircraft/N132JE), registered now
- Make and model: Gulstm GIV
- Aircraft serial: 1403
- Aircraft time: 14,858 hours, 7,415 cycles
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Iru
- Part number: HG1075AE04
- Part serial: 2119
- Condition: Failed
- Location: Instrument Panel
- Part time: 670 hours, 255 cycles
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/W6JA20210224044

## Discrepancy

AIRCRAFT ENROUTE FROM KAPF TO KTEB, CREW WERE ALERTED TO AN AMBER CAS MESSAGE "IRS 1-2 COOL FAIL" CREW DIVERTED TO KRSW AND LANDED WITHOUT FURTHER ISSUE.  AIRCRAFT AOG, AND RON. MAINTENANCE TROUBLESHOT THE PROBLEM TO A FAILED IRU.  THE FAILED IRU WAS DEFERRED PER MEL AND AIRCRAFT RETURNED TO SERVICE BY AN APPROVED VENDOR.

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